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AISI 4145/SCM SCM445/DIN 17212 Hot Rolled Steel Bar ,Casing Hardening Alloy Steel Bar
1. RELATED SPECIFICATIONS:
| USA | AISI 4142/4145/4147 |
| ASTM A29/A29M-91 4142/4145/4147 | |
| ASTM A322 4142/4145/4147 | |
| ASTM A331 4142/4145/4147 (cold finish) | |
| SAE 4142/4145/4147 | |
| Japan | JIS G 4103 SCM445 |
| Germany | DIN 17212 W.Nr. 1.7228 Type 50CrMo4 |
| Great Britain | / |
| Australia | AS 1444-2007 - 4145 |
2. DESCRIPTION:
AISI 4142/4145/4147 steel bar is a medium carbon, chromium and molybdenum alloy steel. The normal condition is hardened
and tempered to a range of 850 to 1000 Mpa ultimate tensile strength for bar sizes up to 220mm
diameter. Limited ruling sections may apply according to Australian Standards
3. APPLICATIONS:
AISI 4142/4145/4147 steel bar is an ideal general purpose high tensile constructional steel ready for use after machining. It is
used for shafts, axles, studs & bolts, large gears and light duty form rolls. The steel is suitable for
induction or flame hardening.
4. TYPICAL CHEMICAL ANALYSIS:
| Elements | Carbon | Manganese | Silicon | Chromium | Molybdenum | Phosphorus | Sulfur | Cuprum |
| 4145 | 0.43-0.48 | 0.75-0.10 | 0.17-0.37 | 0.80-1.10 | 0.15-0.25 | 0.035 max | 0.040 max | 0.035 max |
5. SIZE RANGE:
Diameter:10-320mm
Length:as your request
6. CERTIFICATE OF QUALITY :
Issued in English , in addition the normal terms, production process, the mechanical property (yield strength,tensile strength, elongation and hardness. forged ratio, UT test result,Grain size, heat treatment methods and the sample of is shown on the certificate of quality.
7. MARKING :
Heat no will be cold stamped and steel grade, diameter (mm)length(mm) and the manufacture Logo and weight(KG) is painted.
