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Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear
Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear
Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear
Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear
Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear
Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear
Specifications
Brand Name :
Changfeng
Model Number :
1.7225 SCM440 SAE4140
Certification :
ISO/ Mill Certificate
Place of Origin :
CHINA
MOQ :
5T
Price :
750-980usd/t
Payment Terms :
T/T, L/C
Supply Ability :
1000t/Mouth
Delivery Time :
15-20 days
Packaging Details :
bulk packing/wooden case
Diameter :
20-450mm
Heat Treatment :
Annealing/Q+T
Test :
SGS/Ut100%/Elements Testing
Technology :
Hot Rolled/ forged
HS code :
7228300000
Surface :
Black surface
Shape :
Round bar
Performance :
High strength, hardenability, toughness
Flaw detection :
CC / DD/ EE
Our Service :
CIF / FOB / EXW
Description

Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear

1. 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


2. Equivalent grades

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



3. Available size(mm)

Flat Bar Size(mm) Round bar Size(mm)
Thickness Width Length Diameter Length
13-280 200-2200 2000-10000 20-260 3000-6000


4. Feature
It's characterized by good strength, hardenability and toughness, and it has high creep strength and long lasting strength under the high temperature.

5.Appliation

It's used to manufacture forgings that require higher strength and larger quenched and tempered section than 35CrMo steel, such as large gears for locomotive traction, supercharger transmission gears, rear axles, connecting rods and spring clamps that are heavily loaded. It can also be used for drill pipe joints and fishing tools for oil deep wells below 2000m.

6. Hardness

For anneal, the hardness is less than 217HB.

For Q+T, the hardness is 28-32HRC.

7.Heat Treatment

When forging, firstly preheat the steel carefully, then raise the temperature to 1150-1200°C for forging. Do not forge below 850°C.

When annealing, firstly heat the AISI 4140 slowly to 800-850°C and allow enough time for the steel to be thoroughly heated, then cool slowly in the furnace to 480°C followed by air cooling.

8. Product pictures

Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear

Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear

Warehouse
Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear


Processing
Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear


Strict Quality Control

Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear

Product tags

s45c rod steel

,

steel round bar s355

,

spring steel bar 1055
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Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear

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Product Detail
Brand Name :
Changfeng
Model Number :
1.7225 SCM440 SAE4140
Certification :
ISO/ Mill Certificate
Place of Origin :
CHINA
MOQ :
5T
Price :
750-980usd/t
Contact Supplier
Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear
Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear
Alloy Steel SCM440 SAE4140 1.7225 42CrMo Steel Round Bar For Mechanical Use Gear

Guangzhou Changfeng Steel Co., LTD

Active Member
8 Years
guangdong, guangzhou
Since 2012
Business Type :
Distributor/Wholesaler, Exporter, Trading Company
Main Products :
Hot Work Tool Steel, Cold Work Tool Steel, Special Tool Steel
Total Annual :
5000000-10000000
Employee Number :
100~120
Certification Level :
Active Member
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