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Black Surface Engineering Steel Bar 1.7225 SCM440 SAE4140 42CrMo4 EN19

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China Guangzhou Changfeng Steel Co., LTD certification
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Black Surface Engineering Steel Bar 1.7225 SCM440 SAE4140 42CrMo4 EN19

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Large Image :  Black Surface Engineering Steel Bar 1.7225 SCM440 SAE4140 42CrMo4 EN19

Product Details:
Place of Origin: China
Brand Name: CF Steel
Certification: ISO/TUV/SGS
Model Number: SAE4140,1.7225,SCM440,EN19,42CrMo4
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: standard/customized
Delivery Time: 7-15days
Payment Terms: L/C, T/T
Supply Ability: 1000tons/month
Detailed Product Description
Material: Alloy Steel Shape: Round Bar
Process Tech.: Hot Rolled/forged Application: Mechanical
Diameter: 16-450mm Heat Treatment: Annealing/Q+T
High Light:

engineering special steels

,

h13 tool steel

Hot Rolled 1.7225 SCM440 SAE4140 42CrMo4 Steel Round Bar

Perform Standard: GB/T 3077-1999

 

C Si Mn Cr Mo P S Ni
0.38~0.45 0.17~0.37 0.60~0.90 0.90~1.20 0.15-0.25 ≤0.018 ≤0.030 ≤0.012



1, Application
It used for section large forgings, such as locomotive traction gears, with supercharger drive gear,
the rear axle, the connecting rod and the spring load greatly clip,oil drill pipe joints and fishing tools,etc.


2, Feature
1) Weldability suffers with increasing chromium content;
2) High temperature strength and high pressure hydrogenation properties are promoted by chromium
and molybdenum;

3) Molybdenum significantly reduces temper brittleness;
4) Chromium renders steel oil hardenable and increase hardenability;
5) Chromium molybdenum high tensile steel with yield strength of 550N/mm2;

3, Mechanical Properties:
Tensile strength:σb (MPa):≥1080(110)
Yield strength:σs (MPa):≥930(95)
Elongation:δ5 (%):≥12
Section shrinkage:ψ (%):≥45
Impact work:Akv (J):≥63
Impact toughness value:αkv (J/cm²):≥78(8)

4, Ready Stock:
Round Bar diameter 14-460mm.All the sizes as require can be customerized as fresh production with MOQ.

5, Delivery state:
Hot rolled, Heat Treatment,black, hardness or tempered hardness:28-34 HRC.
Annealing:HBS<=235.

6, Delivery time
For abundant stock, 15-20 days.For customized products, 30-50 days.
We have full set of equipement (sawing machine/grinding/polishing machine) to make customer's specification.

Listed specifications are only typical grades; products of required specifications can be developed/
produced per international, Chinese or industry standards, or based on agreements with customers.

 

Product Photo

 

Black Surface Engineering Steel Bar 1.7225 SCM440 SAE4140 42CrMo4 EN19 0

 

Strict Quality Control

 

Black Surface Engineering Steel Bar 1.7225 SCM440 SAE4140 42CrMo4 EN19 1

 

 

 

Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +8613535323261

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