| Type: | Alloy Steel Bar |
|---|---|
| Standard: | AISI, ASTM, GB, JIS, DIN, BS |
| Technique: | Hot Rolled |
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Scm440 42CrMo4 SAE AISI 4140 En19 1.7225 High Tensile Hot Rolled Steel Round Bar Steel Bar
Equivalence
| AISI/SAE | DIN/W.Nr | JIS | GB | ||||||||
| 4140 | 42CrMo4 | SCM440 | 42CrMo | ||||||||
| 42CrMoS4 | |||||||||||
| 1.7225 |
Chemical Composition (%)
| Steel Grade | C | Si | Mn | P | S | Cr | Mo | ||||||||
| 42CrMo4 1.7225 | 0.38 | ≤ | 0.60 | ≤ | ≤ | 0.90 | 0.15 | ||||||||
| 0.45 | 0.40 | 0.90 | 0.035 | 0.035 | 1.20 | 0.30 | |||||||||
| 42CrMoS4 | 0.38 | ≤ | 0.60 | ≤ | 0.020 | 0.90 | 0.15 | ||||||||
| 0.45 | 0.40 | 0.90 | 0.035 | 0.040 | 1.20 | 0.30 | |||||||||
| 4140 | 0.38 | 0.15 | 0.75 | ≤ | ≤ | 0.80 | 0.15 | ||||||||
| 0.43 | 0.35 | 1.00 | 0.035 | 0.040 | 1.10 | 0.25 | |||||||||
| SCM440 | 0.38 | 0.15 | 0.60 | ≤ | ≤ | 0.90 | 0.15 | ||||||||
| 0.43 | 0.35 | 0.85 | 0.035 | 0.040 | 1.20 | 0.30 | |||||||||
| 42CrMo | 0.38 | 0.17 | 0.50 | ≤ | ≤ | 0.90 | 0.15 | ||||||||
| 0.45 | 0.37 | 0.80 | 0.035 | 0.035 | 1.20 | 0.25 |
Dimensions
| Hot Rolled | Forged | Cold Drawn | |||||||||
| Diameter(mm) | 10-260 | 150-1500 | 2.5-70 | ||||||||
| Length(mm) | 4000-10000 | 3000-10000 | 4000-10000 | ||||||||
Forging Technique
| Heat Temperature | Start Forging Temperature | Finish Forging Temperature | Cooling Method | ||||||||
| 1150-1200ºC | 1130-1180ºC | ≥850ºC | Slow Cooling for Φ>50mm | ||||||||
Delivery Condition
EAF+LF+VD, Hot Rolled, Forged and Cold Drawn, Black surface or Machined (Peeled, Turned, Grinded),
Untreated or Annealed or Q+T, UT 100% Passed
Characteristics
1. Ultrahigh strength steel with high intensity and toughness.
2. Good harden ability, High fatigue limit and capability of impact resistance after Q+T.
3. No obvious temper brittleness.
Applications
1. For making crucial mechanical parts with high intensity and large sections, such as shaft, gear and connecting rod.
2. For making large and medium size of plastic mold.
View more products, you can click product key words.
| Main Products | ||
| Steel Flat | Steel Plate | Die Steel |
| Plastic Mold Steel | Alloy Steel | Pre-machined Flat |
| Die Casting Die | Mold Base | Aluminum Die |
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