Abstract
This specification covers carbon and low alloy steel castings having chemical analyses similar to that of the standard wrought grades. Several grades are covered, such as; SC 1020, SC 1025, SC 1030, SC 1040, SC 1045, SC 4130, SC 4140, SC 4330, SC 4340, SC 8620, SC 8625, and SC 8630. Castings shall be heat treated either by full annealing, normalizing, normalizing and tempering, or quenching and tempering. The steel shall conform to the requirements of chemical composition as specified.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1. Scope
1.1 This specification covers carbon and low alloy steel castings having chemical analyses similar to that of the standard wrought grades.
1.2 Several grades are covered and are designated by chemical composition shown in Table 1.
TABLE 1 Chemical Composition (weight, percent)
| Grade | C | Mn | P, max | S, max | Si | Ni | Cr | Mo |
| |
| SC 1020
(J02003) | 0.18/0.23 | 0.40/0.80 | 0.040 | 0.040 | 0.30/0.60 | . . . | . . . | . . . |
| SC 1025
(J02508) | 0.22/0.28 | 0.40/0.80 | 0.040 | 0.040 | 0.30/0.60 | . . . | . . . | . . . |
| SC 1030
(J03012) | 0.28/0.34 | 0.50/0.90 | 0.040 | 0.040 | 0.30/0.60 | . . . | . . . | . . . |
| SC 1040
(J04003) | 0.37/0.44 | 0.50/0.90 | 0.040 | 0.040 | 0.30/0.60 | . . . | . . . | . . . |
| SC 1045
(J04502) | 0.43/0.50 | 0.50/0.90 | 0.040 | 0.040 | 0.30/0.60 | . . . | . . . | . . . |
| SC 4130
(J13502) | 0.28/0.33 | 0.40/0.80 | 0.035 | 0.040 | 0.30/0.60 | . . . | 0.80/1.10 | 0.15/0.25 |
| SC 4140
(J14045) | 0.38/0.43 | 0.70/1.10 | 0.035 | 0.040 | 0.30/0.60 | . . . | 0.80/1.10 | 0.15/0.25 |
| SC 4330
(J23259) | 0.28/0.33 | 0.60/0.90 | 0.035 | 0.040 | 0.30/0.60 | 1.65/2.00 | 0.70/0.90 | 0.20/0.30 |
| SC 4340
(J24053) | 0.38/0.43 | 0.60/0.90 | 0.035 | 0.040 | 0.30/0.60 | 1.65/2.00 | 0.70/0.90 | 0.20/0.30 |
| SC 8620
(J12095) | 0.18/0.23 | 0.60/1.00 | 0.035 | 0.040 | 0.30/0.60 | 0.40/0.70 | 0.40/0.60 | 0.15/0.25 |
| SC 8625
(J12595) | 0.23/0.28 | 0.60/1.00 | 0.035 | 0.040 | 0.30/0.60 | 0.40/0.70 | 0.40/0.60 | 0.15/0.25 |
| SC 8630
(J13095) | 0.28/0.33 | 0.60/1.00 | 0.035 | 0.040 | 0.30/0.60 | 0.40/0.70 | 0.40/0.60 | 0.15/0.25 |
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3.1 Within the text, the SI units are shown in brackets.
1.3.2 Inch-pound units are applicable for material ordered to Specification A915 and SI units for material ordered to Specification A915M.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A781/A781M Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
Keywords
alloy steel; carbon steel; steel castings;
ICS Code
ICS Number Code 77.140.85 (Iron and steel forgings)
DOI: 10.1520/A0915_A0915M-08R13
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