ASTM A434 (A29) Grade 4140: Composition and Mechanical Properties

February 29, 2012, 9:53 pm

≫ Next: EN 10083 grade 42CrMoS4: Steels for quenching and tempering

Introduction

4140 is a Chromium-Molybdenum through-hardening steel of medium hardenability. It is a general purpose high-tensile steel with medium strength level and good impact properties

Related Specifications

Grade AS1444 Grade 4140
ASTM A434 (A29) Grade 414
Euronorm EN 10083 grade 42CrMo4 (Material Number 1.7225/17227).

Chemical Composition

C Si Mn P S Cr Mo
0.37-0.44 0.10-0.35 0.65-1.10 ≤ 0.040 ≤ 0.040 0.75-1.20 0.15-0.30

Mechanical Properties

4140 is supplied in the hardened and tempered condition. The level of hardness is selected to give useful strength while still maintaining the ability to machine the material into finished components.

4140 can be re-heat-treated to higher strength or tempered back to lower strength levels than those supplied as standard. Assistance with heat treatment should be sought from reputable heat treatment companies.

Product: Atlas4140.pdf

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EN 10083 grade 42CrMoS4: Steels for quenching and tempering

March 3, 2012, 12:26 am

≫ Next: Properties of Stainless steel AISI 310

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42CrMoS4 ( 1.7227 ) - Steels for quenching and tempering

Grade : 42CrMoS4
Number: 1.7227
Standard:EN 10277 - 5 : 2008 Bright steel products. Technical delivery conditions. Steels for quenching and tempering EN 10083 - 3 : 2006 Steels for quenching and tempering. Technical delivery conditions for alloy steels
Classification: Steels for quenching and tempering

Equivalent grades:
USA: 4140
Germany (DIN,WNr): 42CrMoS4
France (AFNOR): 42CD4u
Italy (UNI): 42CrMo4
Spain (UNE): 40CrMo41
International (ISO): 42CrMoS4

Chemical composition % of the ladle analysis
C Si Mn P S Cr Mo
0.38 - 0.45 max 0.4 0.6 - 0.9 max 0.025 0.02 - 0.04 0.9 - 1.2 0.15 - 0.3

Technological properties
Weldability: ? Bad weldability due to the high crack danger.
Hardenability: ?Medium-good hardenability, suitable for hot purposes till a temperature of 500?. It can be hardened in oil.

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Properties of Stainless steel AISI 310

March 20, 2012, 3:00 am

≫ Next: Super Duplex UNS S32750: Composition and Properties

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AISI Type 310 is an Austenitic Standard grade Stainless Steel. It is commonly called AISI Type 310 Chromium-Nickel steel.Composition
Element Weight %
C 0.25
Mn 2.00
Si 1.50
Cr 24.0-26.0
Ni 19.0-22.0
P 0.045
S 0.03

Equivalent grades:

France: AFNOR Z 12 CNS 25.20
Germany: DIN 1.4841
Italy: UNI X 16 CrNiSi 25 20 , UNI X 22 CrNi 25 20
Japan: JIS SUS Y 31O
United Kingdom: B.S. 310 S 24
United States: AMS 5694 , AMS 5695 , ASME SA182 , ASME SA213 , ASME SA249 , ASME SA312 , ASME SA358 , ASME SA403 , ASME SA409 , ASTM A167 , ASTM A182 , ASTM A213 , ASTM A249 , ASTM A276 , ASTM A312 , ASTM A314 , ASTM A358 , ASTM A403 , ASTM A409 , ASTM A473 , ASTM A511 , ASTM A580 , ASTM A632 , FED QQ-S-763 , FED QQ-S-766 , FED QQ-W-423 , FED STD-66 , MIL SPEC MIL-S-862 , SAE 30310 , SAE J405 (30310) , UNS S31000

Mechanical Properties

Density (×1000 kg/m3) 8
Poisson's Ratio 0.27-0.30
Elastic Modulus (GPa) 200
Tensile Strength (Mpa) 515
Yield Strength (Mpa) 205
Elongation (%) 40
Reduction in Area (%) 50
Hardness (HRB) 95 (max)

Thermal Properties
Thermal Expansion (10-6/ºC) 15.9
Thermal Conductivity (W/m-K) 14.2
Specific Heat (J/kg-K) 500

Electric Resistivity (10-9W-m) 780

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Super Duplex UNS S32750: Composition and Properties

February 20, 2013, 12:27 am

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Super Duplex UNS S32750 Data Sheet

UNS S32750 Super Duplex, also know by its trade name SAF2507 has a microstructure 50% austenite and 50% ferrite. The material exhibits high mechanical strength with outstanding corrosion resistance in marine environments. 32760 typically as a min PREN of 40. Due to these features the material is regularly used in place of the 300 stainless series, 22% Cr Duplex and precipitation hardening grades such as 17-4PH.

Common Applications of UNS S32750

Seawater Filter

Waste water/Desalination

Chemical Plants

Oil & Gas

UNS S32750 Chemical Composition

C (Carbon) 0.03% Max

Cr (Chromium) 24.0-26.0%

Fe (Iron) Balance

Mn (Manganese) 2.0% Max

Mo (Molybdenum) 3.0-4.5%

Ni (Nickel) 6.0-8.0%

N (Nitrogen) 0.24-0.35%

P (Phosporous) 0.035% Max

Si (Silicon) 1.0% Max

S (Sulphur) 0.015% Max

UNS S32750 Physical Properties

Density 7800kg/m3

UNS S32750 Mechanical Properties

Hardness Brinell 290 Max

Tensile Strength @ Break 930Mpa / 135000psi

Tensile Strength @ Yield 530Mpa / 77000 psi 0.2% offset

Elongation @ Yield 25%

Modulus of Elasticity 200Gpa 29000 ksi

*Above properties typical values at room temp

UNS S32750 Thermal Properties

CTE Linear 13.0mm/m-ºC (@temp 100ºC)

13.5mm/m-ºC (@temp 200ºC)

14.0mm/m-ºC (@temp 300ºC)

14.5mm/m-ºC (@temp 400ºC)

Specific Heat Capacity 0.500J/g-ºC 20ºC

*Please consider the Environment before printing

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CF-3M: Corrosion Resistant Alloy Property Data

May 22, 2013, 12:10 am

≫ Next: Properties of Mould Stainless Steel SCS13

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DESCRIPTION
CF-3M is an 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 were 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 sulphurous acids, phosphoric and phosphoric-sulphuric-hydrofluoric acid mixtures, sulphate and suphite liquors, sea water 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.

PRODUCTFORMS
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

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Properties of Mould Stainless Steel SCS13

January 2, 2014, 11:28 pm

≫ Next: Alloy Steel AISI 4142

≪ Previous: CF-3M: Corrosion Resistant Alloy Property Data

Chemical composition %

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.08	2.0	2.0	0.04	0.04	18-21(23)	8-11

Properties of grade SCS13

Annealing hardness HBS	Cold pull hardness HBS	Preheating temperature ℃	Quenching temperature ℃		Holding time min	Hardening medium	Temper temperature ℃	After tempering hardness ≥HRC
			salt-bath furnace	controlled atmosphere furnace
235	262	788	1191	1204	5～15	air cooling	522	60

Steel plate/Sheet thickness / mm	σb MPa	σs ≥/MPa	δ Samples from the standard for 50 mm (2 in)	180 ° of cold bending test
				longitudinal	horizontal
Hot-rolled/Cold rolling:5 - 150	520	415	16～18	2a	3.5a

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Alloy Steel AISI 4142

January 19, 2014, 8:27 pm

≫ Next: ASTM A335 P11 Alloy Pipe Specification

≪ Previous: Properties of Mould Stainless Steel SCS13

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

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

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ASTM A335 P11 Alloy Pipe Specification

October 18, 2014, 2:04 am

≫ Next: Specification for ASTM A439 Austenitic Ductile Iron type D2B

≪ Previous: Alloy Steel AISI 4142

ASTM A335 P11 is the part of ASTM A335, The pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding.

The steel material shall conform to chemical composition, tensile property, and hardness requirements.

Each length of pipe shall be subjected to the hydrostatic test. Also, each pipe shall be examined by a non-destructive examination method in accordance to the required practices.

The different mechanical test requirements for pipes, namely, transverse or longitudinal tension test, flattening test, and hardness or bend test are presented.Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.

ASTM A335 P11 Chemical Compositions(%)

Carbon 0.05-0.15

Manganese 0.30-0.60

Phosphorus(max.) 0.025

Sulfur(max.) 0.025

Silicon 0.50-1.00

Chromium 1.00-1.50

Molybdenum 0.44-0.65

Mechanical Properties of ASTM A335 P11

Tensile strength, min, (MPa)	415
Yield strength, min, (MPa)	205
Elongation, min, (%), L/T	30/20

Material &Manufacture

Pipe may be either hot finished or cold drawn with the finishing heat treatment noted below.

Heat Treatment

A / N+T
N+T / Q+T
N+T

Mechanical Tests Specified

Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test
For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested.
For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.

Notes for Hardness Test:

P11 shall not have a hardness not exceeding 250 HB/265 HV [25HRC].

Notes for Bend Test:

For pipe whose diameter exceeds NPS 25 and whose diameter to wall thickness ratio is 7.0 or less shall be subjected to the bend test instead of the flattening test.
Other pipe whose diameter equals or exceeds NPS 10 may be given the bend test in place of the flattening test subject to the approval of the purchaser.
The bend test specimens shall be bent at room temperature through 180 without cracking on the outside of the bent portion.

Source: Sunny steel

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Specification for ASTM A439 Austenitic Ductile Iron type D2B

March 17, 2015, 1:27 am

≫ Next: ASTM A 278 - Standard for Pressure Casting Parts

≪ Previous: ASTM A335 P11 Alloy Pipe Specification

This specification covers austenitic ductile iron castings, which are used primarily for their resistance to heat, corrosion, and wear, and for other special purposes.

International Specifications Equivalent to ASTM A439 D2B
BS3468:1986 S2B
UK
BS3468:1974 ; ISO2892:1973 S- NiCr 20 3
France
NFA32- 301 S- NC 20 3
Germany
DIN1694 GGG- NiCr203
USA
ASTMA436; ASTMA439 A439 Type D2B

Mechanical Properties Metric English
Hardness, Brinell 148 - 211 148 - 211
Hardness, Knoop 200 200
Hardness, Vickers 188 188
Tensile Strength, Ultimate <= 400 MPa <= 58000 psi
Tensile Strength, Yield <= 210 MPa <= 30500 psi
Elongation at Break <= 7.0 % <= 7.0 %

Component Elements Properties Metric English
Carbon, C <= 3.0 % <= 3.0 %
Chromium, Cr 2.75 - 4.0 % 2.75 - 4.0 %
Iron, Fe 66.67 - 73.97 % 66.67 - 73.97 %
Manganese, Mn 0.70 - 1.25 % 0.70 - 1.25 %
Nickel, Ni 18 - 22 % 18 - 22 %
Phosphorous, P <;= 0.080 % <= 0.080 %
Silicon, Si 1.5 - 3.0 % 1.5 - 3.0 %

To see complete data sheet for this material, click here

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ASTM A 278 - Standard for Pressure Casting Parts

June 4, 2015, 2:51 am

≪ Previous: Specification for ASTM A439 Austenitic Ductile Iron type D2B

This specification covers gray iron for castings suitable for pressure-containing parts for use at temperatures up to 650°F (350°C).

Classes of Iron:

1. Castings of all classes are suitable for use up to 450°F (230°C). For temperatures above 450°F and up to 650°F, only Class 40, 45, 50, 55, and 60 castings are suitable.

2. Castings of all classes are suitable for use up to 230°C. For temperatures above 230°C and up to 350°C, only Class 275, 300, 325, 350, 380, and 415 castings are suitable.

Heat Treatment:

1. Whether or not heat treatment is required for Class 40, 45, 50, 55, and 60 castings to be used at temperatures at 450°F or less.

2. Whether or not heat treatment is required for Class 275, 300, 325, 350, 380, and 415 castings to be used at temperatures at 230°C or less.

Tensile Requirements

Class of Iron	Tensile Strength, min, MPa
No. 20	20
No. 25	25
No. 30	30
No. 35	35
No. 40	40
No. 45	45
No. 50	50
No. 55	55
No. 60	60
No. 150	150
No. 175	175
No. 200	200
No. 225	225
No. 250	250
No. 275	275
No. 300	300
No. 325	325
No. 350	350
No. 380	380
No. 415	415

Chemical Composition

1. Class 40, 45, 50, 55, and 60 castings intended for service above 450°F (230°C) shall have a maximum carbon equivalent of 3.8 % as calculated from the equation CE = %C + 0.3 (%Si + %P). The maximum phosphorus and sulfur contents shall be 0.25 % and 0.12 %, respectively.

2. Class 275, 300, 325, 350, 380, and 415 castings intended for service above 230°C shall have a maximum carbon equivalent of 3.8 % as calculated from the equation CE = %C + 0.3 (%Si + %P). The maximum phosphorus and sulfur contents shall be 0.25 % and 0.12 %, respectively.

3. The chemical analysis for total carbon shall be made on either chilled cast pencil-type specimens or thin wafers approximately 1⁄32 in. thick cut from test coupons. Drillings shall not be used because of attendant loss of graphite.

Workmanship, Finish, and Appearance

1. All castings shall be made in a workmanlike manner and shall conform to the dimensions on drawings furnished by the purchaser. If the pattern is supplied by the purchaser without drawings, the dimensions of the casting shall be as predicted by the pattern.

2. The surface of the casting shall be free of adhering sand, scale, cracks, and hot tears as determined by visual examination. Other surface discontinuities shall meet the visual acceptance standards specified in the order.

Source: iron-foundry.com

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