Max. O.D. | Max. Length | Max. Weight |
1000mm | 3000mm | 12 000 Kgs |
Properties | Metric | Mperial |
Density | 7.85 g/cm3 | 0.284 lb/in³ |
Melting point | 1432°C | 2610°F |
AISI 4130 |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
Cu |
Mo |
0.38 – 0.43 |
0.75 – 1.00 |
0.15 – 0.35 |
0.030 max |
0.040 max |
0.80-1.10 |
0.15-0.25 |
0.25 max |
0.35 max |
0.15-0.25 |
ASTM A29/A29M |
DIN17350 |
BS 970 |
JIS G4105 |
GB/T 3077 |
AS 1444 |
ISO 683/18 |
AISI 4140 |
1.7225/ |
42CrMo4 |
SCM440 |
42CrMo |
4140 |
25CrMo4 |
42CrMo4 |
Forging |
1093-1205℃ |
Annealing |
778-843℃ furnace cool |
Tempering |
399-649℃ |
Normalizing |
871-898℃ air cool |
Austenize |
815-843℃ water quench |
Stress Relieve |
552-663℃ |
Quenching |
552-663℃ |
Rm - Tensile strength (MPa) (Q +T) |
≥930 |
Rp0.2 0.2% proof strength (MPa) (Q +T) |
≥785 |
KV - Impact energy (J) (Q +T) |
+20° ? ≥63 |
A - Min. elongation at fracture (%)(Q +T) |
≥12 |
Z - Reduction in cross section on fracture (%)(N+Q +T) |
≥50 |
Brinell hardness (HBW): (Q +T) |
≤229HB |