Categories | Special Tool Steel |
---|---|
Brand Name: | CF STEEL |
Model Number: | 1.7225 SAE4140 EN19 SCM440 42CrMo |
Certification: | ISO, Mill Certificate |
Place of Origin: | China |
MOQ: | 3MT |
Price: | USD800-900/MT |
Payment Terms: | L/C, T/T |
Supply Ability: | 1000t/Month |
Delivery Time: | 7-15 days |
Packaging Details: | Export Standard Packing or Customers'demand |
Standard: | AISI,DIN,ASTM,GB |
Surface: | Machined,black,Plain,mill finish or peeled finish,Grinding |
Technique: | Forged,Hot Rolled,Hot Work Mould Steel |
Test: | SGS / Ut 100% / Element Testing |
Delivery Condition: | Hot Rolled, Forged |
Ut standard: | Sep 1921-84 class 3 C/C to D/D |
Sample: | Free |
Heat Treatment: | Annealing/Q+T |
Hs Code: | 722540 & 722830 |
Ultra-high Strength Mechanical Special Alloy Steel Plate 1.7225
SAE4140 SCM440 42CrMo
Perform Standard: GB/T 3077-1999
Equivalent grades:
GB(China) | DIN(German) | AISI(USA) | JIS(Japan) |
42CrMo | 1.7225 | SAE4140 | SCM440 |
Chemical Composition(%)
C | Si | Mn | Cr | Mo | P | S | Ni |
0.38~0.45 | 0.17~0.37 | 0.60~0.90 | 0.90~1.20 | 0.15-0.25 | ≤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:
quench | temper | ||||
Heating temperature/ºC | Cooling way | Hardness (HRC) | Tempering temperature/ºC | Cooling way | Hardness (HRC) |
850-880 | |||||
Oil Cooling | 50-52 | 450-650 | Air | 25-40 |
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.
7, 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 ion ydecades;
4) Detail production design will be made according to information
you offered;
5) We have adequate inventory, so that we can quicl delivery;
6) The most improtant thing is that we have advance equipment.
Product pictures:
Ultra-high Strength Mechanical Special Steel 1.7225 SAE4140 SCM440
42CrMo
Ultra-high Strength Mechanical Special Alloy Steel Plate 1.7225
SAE4140 SCM440 42CrMo
About Us
Guangzhou Changfeng Steel Co., Ltd. is a professional special steel company, which specializing in
this line since 2005 in China. 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.