1.7225/SCM440/SAE4140 Steel Round Bar Alloy Steel for Mechanical
|3-4 5-19 20+|
|FOB Unit Price:||US $1,150 US $1,100 US $1,050|
|Purchase Qty. (Tons)||FOB Unit Price|
|Payment Terms:||L/C, T/T, D/P|
- Model NO.: 1.7225, SAE4140, SCM440, 42CrMo
- Standard: AISI, ASTM, DIN, JIS, GB, BS
- 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
- Transport Package: for Customers′ Request
- Origin: Guangdong, China
- Type: Alloy Steel Bar
- 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
- Specification: diameter 12-300mm
- HS Code: 7225401000
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.
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)
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.
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:
Mobile Phone: +0086 13631315169
Tel: 0086-20-82515856 Fax:0086-20-82515866