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Round Bar Hot Rolled Alloy Steel Small Deformation During Quenching SCM440 / 1.7225

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China Guangzhou Changfeng Steel Co., LTD certification
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Round Bar Hot Rolled Alloy Steel Small Deformation During Quenching SCM440 / 1.7225

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Large Image :  Round Bar Hot Rolled Alloy Steel Small Deformation During Quenching SCM440 / 1.7225

Product Details:
Place of Origin: China
Brand Name: CF
Certification: ISO/Mill Certificate
Model Number: SAE4140 / 1.7225 / SCM440 / 42CrMo
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: Export Standard Packing or Customers'demand
Delivery Time: 15-35 days
Supply Ability: 1000t/Month
Detailed Product Description
Heat Treatment: Annealed / Q + T Surface Treatment: Black/Peeled/Polished/Machined/turned
Delivery Condition: Forged Or Hot Rolled Test: SGS/Ut 100%/Element Testing
Certificate: ISO/Mill Certificate Shape: Round/plate/flat Bar
Process: EAF+LF+VD+ESR Payment Term: 30% Deposit, Balance By L/C At Sigth After Shipment
High Light:

alloy steel plate

,

special alloy steel

 

SCM440 / 1.7225 / SAE4140 Hot Rolled Alloy Steel with black surface

 

 

SAE4140 Hot Rolled Alloy Steel is an alloy structural steel

 

 

Equivalent grades

 

GB(China) DIN(German) AISI(USA) JIS(Japan)
42CrMo 1.7225 SAE4140 SCM440

 

 

Feature

 

1. High strength

2. High hardenability

3. Good toughness,

4. Small deformation during quenching,

5. High creep strength and long-lasting strength at high temperatures.

 

 

Chemical Composition(%)

 

C Si Mn Cr P S Mo
0.38-0.45 0.17-0.37 0.50-0.80 0.90-1.20 ≤0.035 ≤0.035 0.15-0.25

 

 

Applications

 

For the manufacture of steel with higher strength and quarry section than 35CrMo, such as locomotive traction gear, supercharger transmission gear, rear axle, heavy load connecting rod and spring clamp, can also be used 2000m below the deep oil drill pipe joints and salvage tools.

 

Used in the manufacture of high strength, large cross-section forgings such as supercharger transmission gear,rear axle, hummar shank etc.

 

 

Recommend heat treatment

 

Quenching Tempering
Heating temperature/℃ Cooling way Hardness (HRC) Tempering
temperature
/ºC
Cooling way Hardness
(HRC)
850-880 Oil Cooling ≥53 450-650 Air cooling 25-40

 

 

Available size(mm)

 

Flat Bar Size(mm) Round bar Size(mm)
Thickness Width Length Diameter Length
10-200 155-2200 2000-6000 20-200 3000-6000

 

 

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)

 

 

Standards and Practices:

 

Bars & Forgings – To comply with all requirements of the latest edition of the Standards of the Society of Automotive Engineers for SAE 4140 steel.

 

Plates – To comply with all requirements of the latest edition of the Steel Products Manual of the Iron and Steel Society of AIME, for 4140 alloy steel plate.

 

 

More about Changfeng Steel

 

Guangzhou Changfeng Steel Co., Ltd is a mould steel stockist, we have our own mould steel factory and trading company. Our main steels are carbon tool steel, plastic mold steel, hot work tool steel, cold work tool steel, Hot Rolled alloy steel for mechanical, etc.

 

We provide all materials with high quality and competitive price.

 

 

Why Choose Us?

 

1. Competitive price and high quality
2. OEM/ODM order accept
3. Quick delivery and standard exporting package
4. Smooth production ability(1000tons/month)
5. Flexible payment with T/T, L/C

6. Approved by ISO9001, CE, SGS every year
7. Best service with 24 hours reply

 

We are here waiting for a cooperation chance between us, contact us today then you will get one more chance to find a loyal Hot Rolled Alloy Steel supplier!

 

 

Round Bar Hot Rolled Alloy Steel Small Deformation During Quenching SCM440 / 1.7225 0Round Bar Hot Rolled Alloy Steel Small Deformation During Quenching SCM440 / 1.7225 1

 

Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +86 18148729336

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