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4140 alloy forged steel bars
bar
4140, 42CrMo4, Scm440 ,En19, forged Steel Round Bar
AISI 4140 Alloy Steel Used for big gear, supercharger drive gear, rear axle, the load of connecting rod and a spring clip, can also be used to under 2000m deep well of oil drill pipe joint and the fishing tool and so on.
4140 steel Chemical composition:
| C | Si | Mn | P | S | Cr | Ni | Mo | Cu | AI | V |
| 0.42/0.50 |
0.17/0.37 |
0.50/0.80 |
≤0.035 |
≤0.035 |
0.9/1.2 |
≤0.2 |
0.15/0.25 |
≤0.3 |
0.02/0.5 |
≤0.05 |
| Equivalent Grades: | SAE | 4140 | JIS | SCM440 |
| Greman W.Stoff No. | 1.7225 | GB | 40CrMo | |
| BS | 708M40 | DIN | 42CrMo4 |
SPECIFICATION OF ALLOY STEEL AISI 4140 ROUND BARS
|
Diameter: |
130mm-1000mm (optional) |
|
Length: |
1000mm-12000mm Straightness: 3mm/M max(optional) |
|
Process: |
Forged from vacuum degassed ingots. |
|
Delivery condition: |
Hot forged Rough machined (black surface after Q/T) Turned (optional) |
|
Delivery Time: |
30-60days |
|
Heat treatment: |
Normalized / Annealed / Quenched / tempered (optional) |
|
Technical Data: |
According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing |
|
Properties: |
As your request |
|
Test: |
Ultrasonic test according to SEP 1921-84 Class C/c and D/d (optional) |
|
Marking: |
Grade, heat NO. length will be stamped one each bar with required color |
|
Payment: |
30% advance by T\T, Balance pay before the shipment against shipping documents or irrevocable LC at sight |
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