alloy tool steel 4140/SCM440/42CrMo4

Specifications

alloy tool steel 4140/SCM440/42CrMo4 
Large stock with good price 
1.Diameter:20-400mm 
2.Length:3000-5800mm 

Detailed Product Description

4140/SCM440/42CrMo4 tool steel special steel

For super industry structure use, Alloy Structure Steel

1.Size:Diameter:20-400mm     Length:2000-5800mm

2. Delivery condition: Hot-rolled,black surface

3.Chemical composition:C:0.38~0.45           Si:≤0.40 Mn:0.75~0.90 S:≤0.035         P:≤0.035 Cr:0.90~1.20 Ni:≤0.030      Cu:≤0.030  Mo:0.15~0.30    

4.Process:  EAF + LF + VD + Forged + Heat Treatment (optional)

5.Delivery condition: Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)

6.Technical Data: According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing

7.Test: ultrasonic test according to SEP 1921-84 3C/c

8.Material details will be as per agreed technical specifications

9.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.

10.Marking: Heat No. will be cold stamped and Steel grade, diameter (mm), length (mm), and  the manufacturer LOGO and weight (kg) is painted.

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