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1.2311 1.2312 1.2083 1.2738 1.2344 1.2379 1.7225 Steel Sheet and Steel Bar

China 1.2311 1.2312 1.2083 1.2738 1.2344 1.2379 1.7225 Steel Sheet and Steel Bar, Find details about China Alloy Steel, Steel Plate from 1.2311 1.2312 1.2083 1.2738 1.2344 1.2379 1.7225 Steel Sheet and Steel Bar

Model NO.
1.2311 1.2312 1.2083 1.2738 1.2344 1.2379 1.7225
Special Use
High-strength Steel Plate
Stock
Stock
Heat Treatment
Annealing/Q+T
Technology
Hot Rolled/Forged/Clod Drawn
Thickness
12-280mm
Width
2200mm
Certificate
ISO/Mill Certificate
Test
SGS/Ut100%/Elements Testing
Delivery Quantity
Include MOQ
Trademark
CF STEEL
Transport Package
for Customers′ Request
Specification
thickness: 12-280mm width: >=155mm, length: 5800m
Origin
China
HS Code
7225401000
Model NO.
1.2311 1.2312 1.2083 1.2738 1.2344 1.2379 1.7225
Special Use
High-strength Steel Plate
Stock
Stock
Heat Treatment
Annealing/Q+T
Technology
Hot Rolled/Forged/Clod Drawn
Thickness
12-280mm
Width
2200mm
Certificate
ISO/Mill Certificate
Test
SGS/Ut100%/Elements Testing
Delivery Quantity
Include MOQ
Trademark
CF STEEL
Transport Package
for Customers′ Request
Specification
thickness: 12-280mm width: >=155mm, length: 5800m
Origin
China
HS Code
7225401000
 1.2311 1.2312 1.2083 1.2738 1.2344 1.2379 1.7225 Steel Sheet and Steel Bar

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:
QuenchingTempering 
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: 
Grade Size(mm)
SCM440 PlateThicknessWidthLength
12-28022005800
SCM440 Round BarDiameterLength
16-4503000-6000
 
6,Delivery state:
Hot rolled, Heat Treatment,black, hardness or tempered hardness:28-34 HRC.
Annealing:HBS<=235.

7, Delivery time
For abundant stock, 7-15 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.

Product show:
1.2311 1.2312 1.2083 1.2738 1.2344 1.2379 1.7225 Steel Sheet and Steel Bar

Strict Quality Control 
1.2311 1.2312 1.2083 1.2738 1.2344 1.2379 1.7225 Steel Sheet and Steel Bar

Loading Photo
1.2311 1.2312 1.2083 1.2738 1.2344 1.2379 1.7225 Steel Sheet and Steel Bar

About us: 
Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China.  With more than 20 years experience in special steel industry,  our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Structural Steel, Tool Steel, Stainless Steel, Carbon Steel and Forged Block.
To ensure provide high quality products to customers, we have close cooperation with many Chinese first class special steel enterprises, including Baosteel Group, Dongbei Special Steel, Changcheng Special Steel, Hongsheng Heavy Industry, Xingcheng Special Steel, Daye Special Steel.  
We have thousand tons of stock materials in our own factory and also can provide processing services to customers.  We are full of export experience for many years, the product covers America, Germany, France, Italy, Turkey, Singapore, Thailand, Malaysia, Vietnam, Taiwan, and Middle-East.

After years of development, the company has established a complete quality management and export service system. We have a group of experienced and competent elites and is capable of offering the best service to clients. 
Our company equips with large-sized Vertical saw machines, Horizontal saw machines, Milling machines, Grinding machines and other advanced equipments to provide customers with cutting and other processing services. 
All the products should be inspected the metallographic analysis, hardness, ultrasonic flaw detection and other strict inspection processes, which meet the standards of DIN, AISI, JIS and GB to ensure their function and quality.

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