A 958 Grade SC 4330 Class 135/125 (United States / ASTM) Material Properties

Material group: Ferrous Alloys / Cast steels
Country/Standard: United States / ASTM

Data updates

Latest Update: 2014-09
Total number of updates: 1
Update History:

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 860 MPa view details
Tensile Strength 930 MPa view details
Elongation, A 9 % view details
Reduction of Area val1
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% view details
Yield Strength, Rp0.2 124.7 ksi view details
Tensile Strength 134.9 ksi view details
Elongation, A 9 % view details
Reduction of Area val1
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% view details

Physical Properties

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Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.28 – 0.33
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.70 – 0.90
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.60 – 0.90
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3

A958/A958M: 2024 / Standard Specification for Steel Castings, Carbon and Alloy, with Tensile Requirements, Chemical Requirements Similar to Standard Wrought Grades

Heat Treatments

  • Austenitizing at min. 870°C (1600°F); Liquid quench; Tempering at min. 535°C (1000°F); Post-weld heat treatment must be at or below the final tempering temperature; Following quenching the castings must be cooled below 260°C (500°F) prior to tempering.