Forged bars AISI 4340 alloy structural steel
AISI 4340 hot rolled bars
AISI 4340 hot rolled bars
with quality guarantee and high service
1. Characteristic: High strength,High tenacity,good hardenability,and high resistance to thermal properties.
2.Technique:EAF+LF+VA or negotiation
3. Delivery Hardness: Pre-hardened HB270-300
3. Delivery Hardness: Pre-hardened HB270-300
4. Condition of delivery: forged, hardened and tempered, turned.
5. 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
6. 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.
5. 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
6. 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.
