070M20 / EN3B Steel
070M20, also known as EN3A or EN3B, is a mild steel for general engineering use with good machinability but poor hardenability.
It is suitable for the production of low stressed components such as shafts, gears and threaded bars. It also offers good characteristics for welding, and may be case-hardened to improve wear resistance.
Chemical Analysis
| Carbon | 0.16 – 0.24 |
| Silicon | 0.10 – 0.40 |
| Manganese | 0.50 – 0.90 |
| Phosphorous | 0.00 – 0.05 |
| Sulphur | 0.00 – 0.05 |
Specification Comparison
| BRITISH BS 970:1991 | 070M20 |
| BRITISH BS 970:1955 | EN3B |
| GERMAN DIN | CK20 |
| FRENCH AFNOR | XC18 |
| SWEDISH SS | 1370 |
| AMERICAN SAE | 1021 |
| WERKSTOFF NO. | 1.1151 |
| EUROPEAN STEEL NAME | C22E |
| EUROPEAN STANDARD | EN10083-1 |
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Company Information
Quality Assured Steel Stockist Approved BS EN ISO 9001: 2015
Company Registration Number
2594712
Registered Address
Church Court, Stourbridge Road,
Halesowen, West Midlands, B63 3TT
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