Gold Member Since 2015
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Guangzhou Changfeng Steel Co., Ltd.

Mould Steel, Steel Products, Steel manufacturer / supplier in China, offering Alloy Steel Cold Work Steel 1.7225/Scm440/SAE4140, High Wear Resistance Cold Work Mould Steel SKD11, 1.2083/420 Plastic Mould Steel Special Steel and so on.

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Supplier Homepage Product Mechanical Alloy Steel Alloy Steel Cold Work Steel 1.7225/Scm440/SAE4140

Alloy Steel Cold Work Steel 1.7225/Scm440/SAE4140

Purchase Qty.:
(Tons)
3-4 5-19 20+
FOB Unit Price: US $1,170 US $1,150 US $1,120
Purchase Qty. (Tons) FOB Unit Price
3-4 US $1,170
5-19 US $1,150
20+ US $1,120
Get Latest Price
Production Capacity: 1000t/Month
Transport Package: for Customers′ Request
Payment Terms: L/C, T/T, D/P

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Basic Info
  • Model NO.: SAE4140 42CRMO 1.7225 SCM440
  • Standard: AISI, ASTM, DIN, JIS, GB
  • Composition: Hot Rolled or Forged
  • Shape: Round Bar
  • Special Use: Mold Steel
  • Heat Treatment: Annealing/Q+T
  • Certificate: ISO/Mill Certificate
  • Delivery Quantity: Include MOQ
  • Specification: diameter 14-460mm
  • HS Code: 7228300000
  • Type: Alloy Steel Bar
  • Steel Grade: Prime Steel
  • Technique: Hot Rolled
  • Surface Treatment: Polished
  • Application: Tool Steel Bar
  • Technology: Hot Rolled/Forged/Clod Drawn
  • Test: SGS/Ut100%/Elements Testing
  • Trademark: CF STEEL
  • Origin: Guangdong, China
Product Description
High quality Alloy Steel 1.7225/Scm440 Steel Bar/SAE4140 

Perform Standard: GB/T 3077-1999
 
CSiMnCrMoPSNi
0.38~0.450.17~0.370.60~0.900.90~1.200.15-0.250.0180.0300.012


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.


Welcome to send me the inquiry to demande the quotation, welcome to contact me for more informations:
Cindy
Sales Manager
Mobile Phone: +0086 13631315169
Tel: 0086-20-82515856  Fax:0086-20-82515866
http://www.changfengsteel.com/
http://changfenggz.en.made-in-china.com/



Alloy Steel Cold Work Steel 1.7225/Scm440/SAE4140
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