4340 round steel

AISI 4340, Hot rolled bars, quality guarantee and good service, MOQ:10MT, Aceept trail order - details see: http://www.sourcingmetals.com/4340-round-steel-10143277
Place of Origin: China (Mainland)Brand Name: Wuhan San ZhaoGrade: AISI 4340 GB 40CrNiMoA DIN 36CrNiMo4Chemical Composition: C:0.37~0.44,Si:0.17~0.37,Mn:0.50~0.80,Cr:0.60~0.90,Mo:0.15~0.25,Ni:1.2
Shape: RoundLength: 1500mm,2000mm,3000mmStandard: ASTMTechnique: Hot Rolled
Dimensions: 50mm-500mmAlloy Or Not: Is AlloySecondary Or Not: Non-secondarysurface: balack /polished
4340 round steel
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1. Characteristic:High strength,High tenacity,good hardenability,and high resistance to thermal properties.

2. Delivery Hardness:Pre-hardened HB270-300

3. Chemical Analysis in %

C:0.37-0.44; Si:0.17-0.37; Mn:0.50-0.80; Cr:0.60-0.90; Mo:0.15-0.25; Ni:1.25-1.65

4. Application:

Used for manufacture big sized important Quenched-and-Tempered parts which request good toughness and high strength.such as top load shaft in heavy-duty machinery;

For steam turbine shaft, vane, and heavy-load transmission parts, fastening piece, crankshaft, gears etc. with diameter is biger than 250mm.

Packaging Detail:According to the customer's requirement.
Delivery Detail:40-60 days

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