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Guangzhou Changfeng Steel Co., Ltd.

Round bar, Steel, alloy steel manufacturer / supplier in China, offering Alloy Steel for Mechanical DIN 1.7225, SAE4140, JIS SCM440 Steel Round Bar, High Wear Resistance Cold Work Mould Steel SKD11, W. -Nr. 1.2344/ Hssd 2344 Alloy Steel Plate and so on.

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Supplier Homepage Product Mechanical Alloy Steel Alloy Steel for Mechanical DIN 1.7225, SAE4140, JIS SCM440 Steel Round Bar

Alloy Steel for Mechanical DIN 1.7225, SAE4140, JIS SCM440 Steel Round Bar

Purchase Qty.:
(Tons)
3-4 5-19 20+
FOB Unit Price: US $1,650 US $1,630 US $1,600
Purchase Qty. (Tons) FOB Unit Price
3-4 US $1,650
5-19 US $1,630
20+ US $1,600
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.: 1.7225, SAE4140, SCM440, 42CrMo
  • Standard: AISI, ASTM, DIN, JIS, GB, BS
  • Composition: Alloy Steel
  • Shape: Round
  • Special Use: Wear Resistant Steel
  • Heat Treatment: Annealing/Q+T
  • Thickness: 6-80mm
  • Length: 2000~4000mm
  • Test: SGS/Ut100%/Elements Testing
  • Trademark: CF STEEL
  • Origin: Guangdong, China
  • Type: Alloy Steel Bar
  • Steel Grade: Prime Steel
  • Technique: Hot Rolled
  • Surface Treatment: Polished
  • Application: Tool Steel Bar
  • Technology: Hot Rolled/Forged/Clod Drawn
  • Width: 205~610mm
  • Certificate: ISO/Mill Certificate
  • Delivery Quantity: Include MOQ
  • Specification: diameter 12-300mm
  • HS Code: 7225401000
Product Description
Alloy Steel for Mechanical DIN 1.7225, SAE4140, JIS SCM440 Steel Round Bar 

SAE 4140 alloy steel is chromium, molybdenum, manganese containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. 

Chemical Composition(%)
CSiMnCrMoPSNi
0.38~0.450.17~0.370.60~0.900.90~1.200.15-0.25≤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.


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/




Company certificate
Alloy Steel for Mechanical DIN 1.7225, SAE4140, JIS SCM440 Steel Round Bar


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Alloy Steel for Mechanical DIN 1.7225, SAE4140, JIS SCM440 Steel Round Bar
Alloy Steel for Mechanical DIN 1.7225, SAE4140, JIS SCM440 Steel Round Bar
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