1.7225/SAE4140/SCM440 Best Quality Alloy Tool Steel For Mechanical
|3-4 5-19 20+|
|FOB Unit Price:||US $1,170 US $1,150 US $1,120|
|Purchase Qty. (Tons)||FOB Unit Price|
|Payment Terms:||L/C, T/T, D/P|
- Model NO.: 1.7225, SAE4140, SCM440
- Standard: ASTM, AISI, GB, JIS, DIN, BS
- Surface Treatment: Blackface
- Application: Mold & Dies
- Stock: Stock
- Technology: Hot Rolled/Forged/Clod Drawn
- Width: 2000-2200mm
- Certificate: ISO/Mill Certificate
- Payment: 30% Deposit, Blance by L/C at Sight or T/T
- Trademark: CF STEEL
- Specification: According to customer requirements
- HS Code: 7225401000
- Type: Steel Plate
- Certification: ISO, RoHS
- Technique: Hot Rolled
- Special Use: Wear Resistant Steel
- Heat Treatment: Annealing/Q+T
- Thickness: 20-300mm
- Length: 2000~8000mm
- Test: SGS/Ut100%/Elements Testing
- Delivery Quantity: Include MOQ
- Transport Package: for Customers′ Request
- Origin: Guangdong, China
Perform Standard: GB/T 3077-1999
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.
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;
Tensile strength:σb (MPa):≥1080(110)
Yield strength:σs (MPa):≥930(95)
Section shrinkage:ψ (%):≥45
Impact work:Akv (J):≥63
Impact toughness value:αkv (J/cm²):≥78(8)
4.Recommend heat treatment:
|Heating temperature/ºC||Cooling way||Hardness (HRC)||Tempering temperature/ºC||Hardness (HRC)|
|Preheating temperature||Solution temperture|
Round Bar diameter 14-460mm.All the sizes as require can be customerized as fresh production with MOQ.
Hot rolled, Heat Treatment,black, hardness or tempered hardness:28-34 HRC.
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.