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Guangzhou Changfeng Steel Co., Ltd.

Alloy Steel Plate, Hot Rolled Steel, Special Steel manufacturer / supplier in China, offering SAE 4140, 1.7225 Tool Steel Plate For Hot Rolled Special Steel, Hot Rolled steel Of Cold Work Die Steel O1, 1.2510, Hot Rolled Steel Tool Steel 1.6523, SAE8620 and so on.

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Supplier Homepage Product Mechanical Alloy Steel SAE 4140, 1.7225 Tool Steel Plate For Hot Rolled Special Steel

SAE 4140, 1.7225 Tool Steel Plate For Hot Rolled Special Steel

Purchase Qty.:
(Tons)
3-4 5-19 20+
FOB Unit Price: US $550 US $500 US $450
Purchase Qty. (Tons) FOB Unit Price
3-4 US $550
5-19 US $500
20+ US $450
Get Latest Price
Port: Shenzhen, China
Production Capacity: 1000t/Month
Payment Terms: L/C, T/T, D/P

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Basic Info
  • Model NO.: SAE4140 42CRMO 1.7225 SCM440
  • Technics: Hot Rolled
  • Surface: Polished
  • Special Use: High-strength Steel Plate, Free Cutting Steel
  • Technology: Hot Rolled/Forged/Clod Drawn
  • Width: 205~610mm
  • Test: SGS/Ut100%/Elements Testing
  • Trademark: CF STEEL
  • Specification: According to customer requirements
  • HS Code: 7225401000
  • Standard: DIN, JIS, AISI, ASTM, GB, BS
  • Application: Tool Steel Bar
  • Alloy: Alloy
  • Heat Treatment: Annealing/Q+T
  • Thickness: 6-80mm
  • Certificate: ISO/Mill Certificate
  • Delivery Quantity: Include MOQ
  • Transport Package: for Customers′ Request
  • Origin: Guangdong, China
Product Description
SAE 4140, 1.7225 Tool Steel Plate For Hot Rolled Special Steel

Perform Standard: GB/T 3077-1999

Equivalent grades:
GB(China)DIN(German)AISI(USA)JIS(Japan)
42CrMo1.7225SAE4140SCM440

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,Recommend heat treatment:
quenchtemper 
Heating temperature/ºCCooling wayHardness (HRC)Tempering temperature/ºCCooling wayHardness
(HRC)
850-880
Oil Cooling50-52450-650Air25-40

4,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)

5,Ready Stock: 
Round Bar diameter 14-460mm.All the sizes as require can be customerized as fresh production with MOQ.
 
6,Delivery state:
Hot rolled, Heat Treatment,black, hardness or tempered hardness:28-34 HRC.
Annealing:HBS<=235.

7, 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.


8,Our service:
1) sizes, materials and others are all at your requirements and can be changed;
2) Price varies on materials, dimensions, finish craft and different payments;
3) We are direct manufacture in machinery manufacturing work with experience of several decades;
4) Detail production design will be made according to information you offered;
5) We have adequate inventory, so that we can quick delivery;
6) The most important is that we have advanced equipment.
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.


Company certificate
SAE 4140, 1.7225 Tool Steel Plate For Hot Rolled Special Steel


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SAE 4140, 1.7225 Tool Steel Plate For Hot Rolled Special SteelSAE 4140, 1.7225 Tool Steel Plate For Hot Rolled Special Steel
SAE 4140, 1.7225 Tool Steel Plate For Hot Rolled Special SteelSAE 4140, 1.7225 Tool Steel Plate For Hot Rolled Special Steel

SAE 4140, 1.7225 Tool Steel Plate For Hot Rolled Special Steel
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