Database of properties for steel and alloy materials worldwide.

 
Showing posts with label Alloy Steel. Show all posts
Showing posts with label Alloy Steel. Show all posts

Steel grades of 18CrNiMo7-6

18CrNiMo7-6 is a case-hardening steel known for its exceptional toughness. There are several variants of this steel that have stringent cleanliness requirements and possess narrower composition ranges compared to the standard version. 
One specific variant, designated as IQ (isotropic quality), is produced to have an extremely low number of elongated sulfide inclusions, resulting in more isotropic properties. The high level of oxidic cleanliness in this variant allows it to meet the same demanding cleanliness standards as re-melted qualities.

Grade 159A: This variant has a low sulfur content and is designed to meet high cleanliness requirements.

Grade 159B: This variant has controlled sulfur content, ensuring consistent machinability and +H hardenability.

Grade 159Q: This variant offers isotropic properties (IQ) and improved fatigue strength due to higher cleanliness levels. It also exhibits a finer size and distribution of non-metallic inclusions.

Grade 159X: Similar to Grade 159B, this variant has controlled sulfur content for consistent machinability and +H hardenability.

Grade 159S: This variant has an increased sulfur content.

Grade 4761 (MoCN216): This is a low-sulfur variant of Imatra steel, offering specific characteristics.

IQ-Steel® is an isotropic quality ultra-clean steel optimized for high fatigue strength under multi-axial loading.

Similar designations
1.6587, AISI4820, DIN17CrNiMo6, 18CND6, EN ISO 683-17

Chemical composition

Mechanical Properties

Source: ovako.com

ASTM A387 Grade 11: Chemical Composition, Properties, Equivalent grades

Introduction

The ASTM A387 specification is the Standard Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum intended primarily for use in welded boilers and pressure vessels designed for elevated temperature service.

Chrome Molybdenum steel plate, also known as Chrome Moly, is a versatile material widely used in various industries, including the oil and gas industry, nuclear industry, and fossil fuel power stations. The addition of molybdenum in the alloy composition enhances its strength and enables it to withstand higher working temperatures, while the presence of chromium enhances its corrosion resistance and resistance to oxidation.

The superior temperature tensile strength and anti-corrosive properties of Chrome Moly make it an ideal choice for applications involving saltwater exposure.

Equivalent steel grades

ASTM A387 Grade 11 equivalent steel grades:

Country

USA

USA

European

UK (British Standard)

Standards

ASTM

ASME

EN 10028

BS

Grade

A387 Grade 11

SA387 Grade 11

13CrMoSi5-5

621B

Chemical Composition

The chemical composition of AISI A387 grade 11 alloy steel is as follows:

Element Content (%)

Iron, Fe 96.16-97.6

Chromium, Cr 1.0-1.50

Silicon, Si 0.50-0.80

Manganese, Mn 0.40-0.65

Molybdenum, Mo 0.45-0.65

Carbon, C 0.050-0.17

Phosphorous, P 0.035

Sulfur, S 0.035

Mechanical Properties

The mechanical properties of AISI A387 grade 11 alloy steel are as follows:

Tensile strength 515-690 Mpa/ 74700-100000 psi.

Yield strength 310 Mpa/ 45000 psi.

Rupture strength (@575 °C, time 3.60e+8 sec/1070 °F, time 100000 hour) 37.0 - 48.0 Mpa/ 5370 - 6960 psi

Elastic modulus 190-210 Gpa/ 27557-30458 ksi.

Poisson's ratio 0.27-0.30.

Elongation at break (In 50 mm) 22.00%.

Applications

ASTM A387 Grade 11 steel is characterised by good weldability. ASTM A387 Grade 11 steel is used for manufacturing boilers, pressure vessels and pipes for the transportation of hot liquids. ASTM A387 Grade 11 steel also offer good properties at high and low temperatures. ASTM A387 Grade 11 steel is always supplied in the normalised and tempered condition.

What is ASTM SA 193 grade B16?

What is SA 193 B16?

SA 193 B16 is a specification for high-temperature bolting materials, specifically alloy steel bolting materials, published by the American Society of Mechanical Engineers (ASME).

SA 193 B16 is made from chromium-molybdenum-vanadium alloy steel and is commonly used in applications that require high strength and resistance to corrosion, oxidation, and high temperatures.

SA 193 B16 stud bolts are often used in industries such as oil and gas, petrochemical, and power generation. They are used in applications such as pipeline flanges, valve bodies, pressure vessels, boilers, turbines, heat exchangers, reactors, and compressors.

The ASTM A193 specification, which SA 193 B16 is a part of, outlines the chemical composition, mechanical properties, and testing requirements for high-temperature bolting materials. This helps to ensure that the materials used in critical applications meet a certain level of quality and reliability.

SA 193 B16 mechanical properties, chemical composition, applications

SA 193 B16 is a chromium-molybdenum-vanadium alloy steel used in high-temperature and high-pressure applications such as pressure vessels, boilers, and flanges. The following are the mechanical properties and chemical composition of SA 193 B16:

Mechanical Properties:

  • Tensile strength: 125 ksi (860 MPa) minimum
  • Yield strength: 105 ksi (720 MPa) minimum
  • Elongation: 16% minimum
  • Reduction of area: 50% minimum
  • Hardness: 35 HRC maximum

Chemical Composition:

  • Carbon: 0.36% - 0.47%
  • Manganese: 0.45% - 0.70%
  • Phosphorus: 0.035% maximum
  • Sulfur: 0.040% maximum
  • Silicon: 0.15% - 0.35%
  • Chromium: 0.80% - 1.15%
  • Molybdenum: 0.15% - 0.25%
  • Vanadium: 0.10% - 0.20%

Temperature Range

ASTM a193 grade b16 bolt temperature range is between -20ºF (-30ºC) to +1100ºF (+593ºC).

Thermal Expansion Coefficient

Co-efficient of thermal expansion for ASTM a193 grade b16 bolting is approximately 7.5 x 10^6.

Applications: SA 193 B16 stud bolts are commonly used in industries such as oil and gas, petrochemical, and power generation. They are used in applications that require high strength and resistance to corrosion, oxidation, and high temperatures. Some common applications of SA 193 B16 include:

  • Pipeline flanges
  • Valve bodies
  • Pressure vessels
  • Boilers
  • Turbines
  • Heat exchangers
  • Reactors
  • Compressors

It is important to ensure that any SA 193 B16 stud bolts being used meet the ASTM A193 specification and are installed and tightened according to the manufacturer's recommended torque specifications to ensure their performance and reliability.

 

A217 GR.WC6 properties

A217 GR.WC6 is a high-strength low-alloy steel that is commonly used in high-temperature and pressure applications. In this article, we will explore the mechanical properties, chemical composition, equivalent grades, and applications of A217 GR.WC6.

Equivalent Grades: A217 GR.WC6 has several equivalent grades that have similar chemical compositions and mechanical properties. Some of the equivalent grades are:

  • ASTM A182 F11
  • ASTM A335 P11
  • BS 1503 Grade 621-440
  • DIN 1.7335
  • ASME SA217
  • UNS J42045

Chemical Composition: The chemical composition of A217 GR.WC6 is as follows:

  • Carbon (C): 0.05-0.20%
  • Manganese (Mn): 0.50-0.80%
  • Silicon (Si): 0.50-1.00%
  • Chromium (Cr): 1.00-1.50%
  • Molybdenum (Mo): 0.44-0.65%
  • Nickel (Ni): 0.50% maximum
  • Phosphorus (P): 0.03% maximum
  • Sulfur (S): 0.03% maximum

Mechanical Properties: The mechanical properties of A217 GR.WC6 are as follows:

  • Tensile strength: 415 MPa (60,000 psi) minimum
  • Yield strength: 205 MPa (30,000 psi) minimum
  • Elongation: 20% minimum
  • Reduction of area: 35% minimum
  • Hardness: 197-241 HBW

Applications: A217 GR.WC6 is primarily used in high-temperature and pressure systems, including:

  • Boiler components: A217 GR.WC6 is used to cast boiler components such as steam tubes, flanges, gaskets, and handles.
  • High-pressure piping: A217 GR.WC6 is used to cast high-pressure piping components such as pipes, flanges, valves, and fittings.
  • Pumps: A217 GR.WC6 is used to cast pump components such as handles, shafts, and impellers.
  • Valves: A217 GR.WC6 is used to cast valve components such as valve bodies, flanges, and handles.

Components cast from A217 GR.WC6 have high strength, can withstand high pressure and temperature, and have good resistance to corrosion and erosion, especially in acidic environments. Overall, A217 GR.WC6 is a versatile steel that can be used in a wide range of applications where high-strength and corrosion-resistant materials are required.

Properties of LEAN DUPLEX UNS S32101 - ALLOY 1.4162 - LDX 2101

ALLOY 1.4162 / LEAN DUPLEX UNS S32101 / LDX 2101

MATERIAL DESCRIPTION

LDX 2101 is a low Ni-alloyed duplex with balanced chemistry of chromium, molybdenum and nitrogen content to achieve good resistance to localized and uniform corrosion. The duplex microstructure contributes to the high strength and high resistance to stress corrosion cracking. Duplex steels have good weldability. Due to risk of embrittlement, LDX 2101 should not be used at temperatures above 250°C. Very price stable high strength alloy.



LDX 2101 is a low-nickel, nitrogen enhanced lean duplex stainless steel developed for general-purpose use. The austenitic-ferritic (duplex) structure of the alloy is balanced to approximately equal amounts of ferrite and austenite in the solution-annealed condition.

The high chromium and nitrogen content of LDX 2101, combined with an addition of molybdenum, provide very good resistance to localized and uniform corrosion. The duplex microstructure contributes to the alloys high strength and resistance to chloride stress-corrosion cracking. LDX 2101 possesses both superior strength and greater chloride stress-corrosion cracking resistance than conventional 300 series stainless steels.

The corrosion resistance of LDX 2101 is generally good making it suitable for use in a wide variety of applications. In most environments, it is superior to 304L stainless steel and comparable to the molybdenum containing 316L stainless steel.

The enhanced mechanical strength of LDX 2101 is far superior to conventional 300 series stainless steels enabling it to be used in thinner cross-sections which can provide significant cost savings to the end user.

LDX 2101 exhibits good abrasion and erosion resistance and can be fabricated using standard shop practices developed for duplex stainless steels.

APPLICATIONS

The main applications are for details with corrosion resistance better than 304L.

General corrosion is characterized as a uniform attack on a surface in contact with a corrosive medium. The resistance to uniform corrosion in sulfuric acid is shown below. LDX 2101 is superior to 304L and in some cases comparable to 316L.

LDX 2101 is characterized by:

• Ideal for tank production where corrosion strength is sufficient.

• Good resistance to stress corrosion cracking.

• Good resistance to general corrosion.

• High mechanical strength.

• High resistance to erosion corrosion and corrosion fatigue.

Heat Treatment


Solution annealing at 1020 – 1100°C followed by water quenching.

Weldability
Very good.

CHEMICAL COMPOSITION

Weight %

C

Si

Mn

S

P

Cr

Ni

Mo

N

Cu

Min.

4,00

21,00

1,35

0,1

0,20

0,10

Max.

0,040

1,00

6,00

0,015

0,035

22,00

1,90

0,8

0,25

0,80

Product Standards: EN 10088-2, EN 10088–4, ASTM A240, EN ISO 9445-2
Approvals: NACE MR0175/ ISO 15156-3:2015, PED 97/ 23/ EC, CPR 305/ 2011/ EU

MECHANICAL PROPERTIES

Yield strength Rp0.2,
MPa

Tensile strength Rm,
MPa

Elongation
[%]

Hardness
[HB]

Impact, Charpy-V, -40ºC
[J]

Pre

Surface

PLATE CR (COIL)

≥ 530

≥ 700

≥ 30

≥ 50

26

2B/2E

PLATE HR (COIL)

≥ 450

≥ 650

≥ 30

≤ 290

≥ 50

26

1D

PLATE (QUARTO)

≥ 450

≥ 650

≥ 30

≤ 290

≥ 27

26

1D

 




Source:

Alloy Steel AISI 4142

Alloy Steel 4142 Forging

Introduction

AISI 4142 is a Standard grade Alloy Steel. It is commonly called AISI 4142 Chromium-molybdenum steel. It is composed of (in weight percentage) 0.40-0.45% Carbon (C), 0.75-1.00% Manganese (Mn), 0.035%(max) Phosphorus (P), 0.04%(max) Sulfur (S), 0.15-0.30% Silicon (Si), 0.80-1.10% Chromium (Cr), 0.15-0.25% Molybdenum (Mo), and the base metal Iron (Fe). Other designations of AISI 4142 alloy steel include UNS G41420 and AISI 4142.

Equivalent materials to AISI 4142 alloy steel are:
  • ASTM A322
  • ASTM A331
  • ASTM A505
  • ASTM A519
  • ASTM A547
  • SAE J404
  • SAE J412
  • SAE J770
  • ASTM A29
  • ASTM A372 (VIII)
  • ASTM A711
  • ASTM A752
  • ASTM A829
  • SAE J1397
 Chemical Composition
The following table shows the chemical composition of AISI 4142 alloy steel.
Element Content (%)
Iron, Fe ≥ 96.725
Chromium, Cr 0.80-1.10
Manganese, Mn 0.75-1.10
Carbon, C 0.40-0.45
Silicon, Si 0.15-0.30
Molybdenum, Mo 0.15-0.25
Sulfur, S ≤ 0.040
Phosphorous, P ≤ 0.035

Physical Properties

The physical properties of AISI 4142 alloy steel are outlined in the following table.
Properties Metric Imperial
Density 7.85 g/cm3 0.284 lb/in³

Mechanical Properties

The mechanical properties of AISI 4142 alloy steel are highlighted below.
Properties Metric Imperial
Elastic modulus 190-210 GPa 27557-30458 ksi
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Hardness, Brinell (annealed and cold drawn) 187-229 187-229
Hardness, Knoop (converted from Brinell hardness) 230 230
Hardness, Rockwell B (converted from Brinell hardness) 94 94
Hardness, Rockwell C (converted from Brinell hardness, value below normal HRC range, for comparison purposes only) 15 15
Hardness, Vickers (converted from Brinell hardness) 218 218
Machinability (annealed and cold drawn, based AISI 1212 steel, as on 100 machinability) 65 65

Alloy Steel 4142 Forging

Thermal Properties

The thermal properties of AISI 4142 alloy steel are outlined below.
Properties Metric Imperial
Thermal conductivity 42.6 W/mK 296 BTU in/hr.ft².°F


Source: azom and efunda

CF-3M: Corrosion Resistant Alloy Property Data


Stainless Steel SA351 CF3M, Butterfly valve



DESCRIPTION
CF-3M is a Fe-Cr-Ni-Mo alloy that is the cast equivalent of wrought, low carbon, AISI 316L stainless steel. The low carbon content of the alloy results in greater resistance to sensitization of the welds. Consequently, it is most commonly used in applications where post-weld heat treatment cannot be applied. Optimum corrosion resistance is reached after solution annealing at 1900 to 2050oF followed by rapid cooling. It has good resistance to organic acids and salts, sulphuric and sulfurous acids, phosphoric and phosphoric-sulphuric-hydrofluoric acid mixtures, sulfate and sulfite liquors, seawater and other chloride solutions, sodium hydroxide and steam. A modified form of the alloy, known as CF-3MA, has higher strength than the normal CF-3M. This is achieved by balancing the composition to produce a higher range of ferrite than the 20% present in the CF-3M grade.

RELATED SPECIFICATIONS
ASTM A351(CF3M and CF3MA), A743(CF-3M), A744(CF-3M), A 451 (CPF3M), J92800 Nearest wrought grade: AISI 316L.

COMPOSITION
                 C         Mn     Si         Cr      Ni    Mo         P      S
Min %                                       17.0    9.0    2.0       
Max %    0.03    1.50    1.50    21.0    13.0    3.0    0.04    0.04

APPLICATIONS
Impellors, propellors, pump casings, suction manifolds and valve bodies.

PRODUCT FORMS
Horizontal and vertical centrifugal castings; static castings.

PHYSICAL PROPERTIES
Density (lbs/in3)      0.280
Liquidus(oF)            2600
Thermal Conductivity     9.4 @ 212oF;
(Btu/h/ft2/ft/oF)              12.3 @ 1000oF
Thermal Expansion         8.9 @ 70-212oF
(10-6in/in oF)                  9.7 @ 70-1000oF
Magnetic Permeability    1.2 to 3.1

MECHANICAL PROPERTIES
(Typical Values at Room Temperature - Solution Annealed >1900oF, Water Quenched.)
ASTM Specs A351 and A743
                                   CF-3M    CF-3MA      A743 CF-3M    A351CF-3A
U.T.S.           K.S.I.    80               90                     70 Min         77 Min.
Y.S.               K.S.I.    38               45                      30 Min        35 Min.
Elong.            %         55               45                      35 Min         35 Min
Brinell           H B      150            170       
Charpy 'V'    ft-lbs    120              100       

WELDABILITY
CF-3M may be welded by the SMAW, GTAW and GMAW processes.
Electrodes    308Mo, 316, 317, 316L, 308MoL.
Preheat    Not required.
Post weld heat treatment Not normally required

Source: Kubota Metal Corporation

Alloy Steel ASTM A588 Grade A: Composition


ASTM A588 Grade A is categorized as Alloy Steel.

Composition

Weight           Element
0.10-0.19%    Carbon (C),
0.90-1.25%    Manganese (Mn),
0.04%            Phosphorus (P),
0.05%            Sulfur (S),
0.15-0.30%   Silicon (Si),
0.40-0.65%   Chromium (Cr),
0.02-0.10%   Vanadium (V),
0.25-0.40%   Copper (Cu),

and the base metal Iron (Fe).

Another common designation of ASTM A588 Grade A alloy steel is UNS K11430.

Alloy Steel ASTM A588 Grade B: Composition, Properties


ASTM A588 Grade B is categorized as Alloy Steel. It is composed of (in weight percentage) 0.20%(max) Carbon (C), 0.75-1.25% Manganese (Mn), 0.04% Phosphorus (P), 0.05% Sulfur (S), 0.15-0.30% Silicon (Si), 0.40-0.70% Chromium (Cr), 0.50%(max) Nickel (Ni), 0.001-0.10% Vanadium (V), 0.20-0.40% Copper (Cu), and the base metal Iron (Fe).

Another common designation of ASTM A588 Grade B alloy steel is UNS K12043.

Composition

Element    Weight %
C           0.20 (max)
Mn        0.75-1.25
P           0.04
S           0.05
Si          0.15-0.30
Cr         0.40-0.70
Ni         0.50 (max)
V          0.001-0.10
Cu        0.20-0.40

Mechanical Properties


Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.7-8.03 25
Poisson's Ratio 0.27-0.30 25
Elastic Modulus (GPa) 190-210 25

Source: efunda.com

CF8M corrosion resistant alloy : composition, applications, properties and weldability

DESCRIPTION

CF-8M is a molybdenum bearing modification of of CF8 alloy and is the cast equivalent of wrought AISI 316 stainless steel. The presence of molybdenum increases the general corrosion resistance and the resistance to pitting by chlorides. The alloy is used in mildly acidic and alkaline conditions and for handling citric, oxalic and phosphoric acids.

COMPOSITION
                     C         Mn      Si        Cr    Ni      Mo      P        S
Min %                                 18        9    2.0
Max %        0.08    1.50     2.0(i)   21     12      3.0    0.04    0.04
Notes (i) Silicon 1.5% Max in ASTM A351

APPLICATIONS
Impellors, propellors, pump casings, valve bodies, press plates.

PRODUCT FORMS
Horizontal and vertical centrifugal castings; static castings.

PHYSICAL PROPERTIES
Density (lbs/in3)              0.280
Liquidus(oF)                   2550
Thermal Conductivity      9.4 @ 212oF
(Btu/h/ft2/ft/oF)              12.3 @ 1000oF
Thermal Expansion         8.9 @ 70-212oF
(10-6in/in oF)                 9.7 @ 70-1000oF
Magnetic Permeability    1.5-2.5

MECHANICAL PROPERTIES
(Typical Values at Room Temperature - Solution Annealed at 1950-2100oF, Water Quenched.)
                                                                                     ASTM Specs A351, A743 & A744
U.T.S.                  K.S.I.                   80.0                     70  Min
Y.S.                     K.S.I.                   42.0                      30 Min
Elong.                  %                          50                        30 Min
Brinell                  H B                       156-170
Charpy 'Key'       ft-lbs                     52 @ -400oF

WELDABILITY
CF-8M may be welded by the SMAW, GTAW and GMAW processes.
Electrodes
Preheat                                   None
Post weld heat treatment         1900oF min. water quench
Procedures for welding CF-8M alloy are available from Kubota Metal Corporation.

RELATED SPECIFICATIONS
ASTM A351, A743, A744, , J92900
Nearest wrought grade: AISI 316.



Source: http://www.kubotametal.com

Stellite: Composition, Properties and Applications

Stellite
Stellite alloy is a range of cobalt-chromium alloys designed for wear resistance. It may also contain tungsten or molybdenum and a small but important amount of carbon. It is a trademarked name of the Deloro Stellite Company and was invented by Elwood Haynes in the early 1900s as a substitute for flatware that stained (or that had to be constantly cleaned).

Workers_casting_Stelllite_at_the_Haynes_Stellite_Company,_10_October_1918


Composition
There are a large number of stellite alloys composed of various amounts of cobalt, nickel, iron, aluminum, boron, carbon, chromium, manganese, molybdenum, phosphorus, sulphur, silicon, and titanium, in various proportions, most alloys containing four to six of these elements.
Properties
Stellite alloy is a completely non-magnetic and corrosion-resistant cobalt alloy. There are a number of Stellite alloys, with various compositions optimised for different uses. Information is available from the manufacturer, Deloro Stellite, outlining the composition of a number of Stellite alloys and their intended applications. The alloy currently most suited for cutting tools, for example, is Stellite 100, because this alloy is quite hard, maintains a good cutting edge even at high temperature, and resists hardening and annealing due to heat. Other alloys are formulated to maximize combinations of wear resistance, corrosion resistance, or ability to withstand extreme temperatures.

Stellite alloys display astounding hardness and toughness, and are also usually very resistant to corrosion. Stellite alloys are so hard that they are very difficult to machine, and anything made from them is, as a result, very expensive. Typically, a Stellite part is precisely cast so that only minimal machining is necessary. Stellite is more often machined by grinding, rather than by cutting. Stellite alloys also tend to have extremely high melting points due to the cobalt and chromium content.
Applications
Typical applications include saw teeth, hardfacing, and acid-resistant machine parts. Stellite was a major improvement in the production of poppet valves and valve seats for the valves, particularly exhaust valves, of internal combustion engines. By reducing their erosion from hot gases, the interval between maintenance and re-grinding of their seats was dramatically lengthened. The first third of M60 machine gun barrels (starting from the chamber) are lined with Stellite. The locking lugs and shoulders of Voere Titan II rifles were also made of Stellite. In the early 1980s, experiments were done in the United Kingdom to make artificial hip joints and other bone replacements out of precision-cast Stellite alloys. It is also widely used for making the cast structure of dental prosthesis.
Valve seat and ball bearing produced from Stellite Alloy

Stellite has also been used in the manufacture of turning tools for lathes. With the introduction and improvements in tipped tools it is not used as often, but it was found to have superior cutting properties compared to the early carbon steel tools and even some high speed steel tools, especially against difficult materials such as stainless steel. Care was needed in grinding the blanks and these were marked at one end to show the correct orientation, without which the cutting edge could chip prematurely.

While Stellite remains the material of choice for certain internal parts in industrial process valves (valve seat hardfacing), its use has been discouraged in nuclear power plants. In piping that can communicate with the reactor, tiny amounts of Stellite would be released into the process fluid and eventually enter the reactor. There the cobalt would be activated by the neutron flux in the reactor and become cobalt-60, a radioisotope with a five year half life that releases very energetic gamma rays. While not a hazard to the general public, about a third to a half of nuclear worker exposures could be traced to the use of Stellite and to trace amounts of cobalt in stainless steels. Replacements for Stellite have been developed by the industry, such as the Electric Power Research Institute’s “NOREM”, that provide acceptable performance without cobalt. Since the United States nuclear power industry has begun to replace the Stellite valve seat hardfacing in the late 1970s and to tighten specifications of cobalt in stainless steels, worker exposures due to cobalt-60 have dropped significantly.

Source:wikipedia.org

Precipitate Hardening stainless steel list



ASTM - American Society for Testing and Materials AMS - Aerospace Material Specification
AISI - American Iron and Steel Institute IC - Investment Casting Institute
MIL - Military Specification SAE - Society of Automotive Engineers
ACI - Alloy Casting Institute IN - International Nickel

QQ - Federal Specifications
PPT. Hardening Stainless Steels
Alloy Specification Carbon Min-Max Manganese Min-Max Silicon Min-Max Chromium Min-Max Nickel Min-Max Molybdenum Min-Max Phosphorus Min-Max Sulfur Min-Max Copper Min-Max Iron Other Melting Range oF
14-4 AMS 5340D .06 .70 .50-1.00 13.50-14.25 3.75-4.75 2.0 -2.50 .020 .025 3.00-3.50 Bal. Cb, .15-.35; N2, .05 Max. Ta, .05 Max. 2550-2600
15-5 AMS 5346 .05 .60 .50-1.00 14.00-15.50 4.20-5.00
.025 .025 2.50-3.20 Bal. Cb/Ta, .15-.30; N2, .05 Max. 2560-2625
AMS 5347A .05 .60 .50-1.00 14.00-15.50 4.20-5.00
.025 .025 2.50-3.20 Bal. Cb, .15-.30, N2, Ta, .05 Max. 2560-2625
AMS 5356A .05 .60 .50-1.00 14.00-15.50 4.20-5.00
.025 .025 2.50-3.20 Bal. Cb, .15-.30; Ta, .05 Max. 2560-2625
AMS 5357A .05 .60 .50-1.00 14.00-15.50 4.20-5.00
.025 .025 2.50-3.20 Bal. Cb, .15-.30; N2, .05 Max.Ta, .05 Max. 2560-2625
AMS 5400A .05 .60 .50-1.00 14.00-15.50 4.20-5.00
.025 .025 2.50-3.20 Bal. Cb, .15-.30 Ta, .05 Max 2560-2625
ASTM A-747 CB 7 Cu-2 ACI-CB-7 Cu-2 .07 .70 1.00 14.0 -15.50 4.50-5.50
.035 .03 2.50-3.20 Bal. Cb/Ta, .15-.35; N2, .05 Max. 2560-2625
IC 15-5-PH .05 .60 .50-1.00 14.00-15.50 4.20-5.00
.025 .025 2.50-3.20 Bal. Cb/Ta, .15-.30; N2, .05 Max. 2560-2625
Alloy Specification Carbon Min-Max Manganese Min-Max Silicon Min-Max Chromium Min-Max Nickel Min-Max Molybdenum Min-Max Phosphorus Min-Max Sulfur Min-Max Copper Min-Max Iron Other Melting Range oF
17-4 AMS 5342C 5344C .06 .70 .50-1.00 15.5-16.7 3.60-4.60
.025 .025 2.8-3.5 Bal. Cb/Ta, .15-.40; Al, .05 Max.; N2, .05 Max.; Sn,. .02 Max.

2560-2625
AMS 5343D .06 .70 .50-1.00 15.5-16.7 3.60-4.60
.025 .025 2.8-3.5 Bal. Cb, .15-.40; Al, .05 Max.; N2, .05 Max.; Sn,. .02 Max.; Ta, .05 Max. 2560-2625
AMS 5355F .06 .70 .50-1.00 15.5-16.7 3.60-4.60
.025 .025 2.8-3.5 Bal. Cb, .15-.40; Al, .05 Max.; N2, .05 Max.; Sn,. .02 Max.; Ta, .05 Max. 2560-2625
(ARMCO) .07 1.00 1.00 15.5-17.5 3.00-5.00
.04 .03 3.0-5.0 Bal. Cb/Ta, .25-.45 2560-2625
IC 17-4PH .06 .70 .50-1.00 15.5-16.7 3.60-4.60
.04 .03 2.8-3.5 Bal. Cb/Ta, .15-.40; N2, .05 Max. 2560-2625
ASTM A-747 CB 7 Cu-1 .07 .70 1.00 15.5-17.7 3.60-4.60
.035 .03 2.50-3.20 Bal. Cb, .15-.35; N2, .05 Max. 2560-2625
MIL-S-81591 IC-17-4 .08 1.00 1.00 15.5-17.5 3.00-5.00
.04 .04 3.0-5.0 Bal. Cb/Ta, .45 Max. 2560-2625
CD 4M Cu ASTM A-351 GR CD4MCu,
ASTM A-743 GR CD4MCu,
ASTM A-744 GR CD4MCu,
ASTM A-890 GR 1-A
.04 1.00 1.00 24.5-26.5 4.75-6.00 1.75-2.25 .04 .04 2.75-3.25 Bal.
2550-2600
AM 355 AMS 5368B .08-.15 .40-1.10 .75 14.5-15.5 3.50-4.50 2.00-2.60 .04 .03 2.8-3.5 Bal. N2, .05-.13; C+N2, .15-.25 2500-2550

 
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