1, size of 4340 alloy steel
Round bar
Diameter(mm) length (mm)
20~800 3000~9000

Plate
Thickness(mm) width (mm) length (mm)
Max:800 max:2200 max:9000
The specification can be customized.

2, chemical compositons
C si mn p s cr mo ni
0.38-0.43 0.15-0.35 0.60-0.80 â?¤0.035 â?¤0.040 0.70-0.90 0.20-0.30 1.65-2.00

3, features of 4340 alloy steel
1, chromium molybdenum alloy steel;
2, high strength and toughness;
3, good stability of hardenability and anti-overheating;
4, good high tensile strength with shock resistance.

4, typical applications
1, heavy machinery and high-load of shaft;
2, rotor shaft and blades;
3, special performance requirements of the vital parts after nitriding treatment.

Songshun company introduction
Located in chang'an town - the famous town of mould in pearl river delta;
Providing complete services from manufacturing and marketing to distributing;
Steel exported all over the world;
Service like peeling, milling, grinding, cutting and heat treatment etc...
All steel must pass high quality detection;


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