EN10083-3 34CrMo4 steel work/ steel structures/ steel machining parts

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10-May-2024

EN10083-3 34CrMo4 (1.7220) steel has high static strength, high impact toughness and high fatigue limit. Compared with 40Cr steel, 34CrMo4 steel has higher harden-ability. 34CrMo4 steel has high creep strength in high temperature, and it can work in 500℃ temperature. Its plasticity is ordinary in cold deformation, and its weld-ability is not very well.
Heat treatment: quenching 850℃;oil cooling; tempering 550 ℃; water cooling and oil cooling.
Delivery condition: heat treatment (positive fire, annealing or high temperature tempering); without heat treatment

EN10083-3 34CrMo4 (1.7220) steel Chemical composition

C ：0.30～0.37
Si：≤0.40
Mn：0.60～0.90
S ：≤0.035
P ：≤0.025
Cr：0.90～1.20
Mo：0.15～0.30

Mechanical properties after quenching and tempering

( Diameter ≤16mm; Thickness ≤ 8mm)
Tensile strength σb (MPa)：1000-1200
Yield strength σs (MPa)：≥800
Elongation δ5 (％)：≥11
( 16mm＜Diameter ≤40mm; 8mm＜Thickness ≤ 20mm)
Tensile strength σb (MPa)：900-1100
Yield strength σs (MPa)：≥650
Elongation δ5 (％)：≥12
( 40mm＜Diameter ≤100mm; 20mm＜Thickness ≤ 60mm)
Tensile strength σb (MPa)：800-950
Yield strength σs (MPa)：≥550
Elongation δ5 (％)：≥14
The raw material of 34CrMo4 steel includes 34CrMo4 steel plate, 34CrMo4 steel pipe, 34CrMo4 steel round bar. With our deep processing, we can provide the 34CrMo4 steel work, 34CrMo4 steel structures and 34CrMo4 steel machining parts: they are usually used as structural component with high load work, such as transmission parts in vehicle and engine, the rotor, spindle, transmission shaft with heavy load.
Shanghai KUNFENG is located in Pudong district of Shanghai city. It is only 30 minutes from Pudong International airport to our company. If you have chance to China, we sincerely invite you to visit us. We have five big steel processing centers located in Shanghai City, Tianjin City, Qingdao City, Wuhan City and Nanyang City. Every processing center can process steel material 200,000 tons annually, So we have the capacity to offer the processing like cutting, drilling, wedding, milling, turning, bending, etc. We have the ability to produce every kinds of steel structural parts. If you need 34CrMo4 steel work/ steel structures/ steel machining parts, please be free to contact us.