TORICH Custom Round Seamless Steel Tube 34CrMo4 Alloy Steel With Heat Treatment

TORICH Custom Round 34CrMo4 Alloy Steel Pipe With Heat Treatment Good surface quality

Material:34CrMo4

Chemical composition:

C:0.30~0.37

Si:0.10~0.40

Mn:0.60~0.90

S:permissible residual content ≤0.035

P:permissible residual content ≤0.035

Cr:0.90~1.20

Ni:permissible residual content ≤0.030

Cu:permissible residual content ≤0.030

Mo:0.15~0.30

Mechanical properties:

Tensile strength σb (MPa):≥985(100)
Yield strength σs (MPa):≥835(85)
Elongation δ5 (%):≥12
rate of reduction in area ψ (%):≥45
Impact energy Akv (J):≥63
Impact toughness αkv (J/cm2):≥78(8)
Hardness :≤229HB
Sample size for blank :25mm

Characteristic:

TORICH QUALITY ASSURANCE

Good surface quality

Good OD and ID tolerance controlled to Technical Standard
Stable quality
100% Eddy Current Test

Processing:W-C, W-H

Technical Delivery Conditions:Heat treatment with quenching or tempering

Widely used in the field of:Drives for vehicles and engine, big gear for Locomotive traction, connecting rod and spring clip, deep oil drilling joints etc.

Product images:

QUALITY CONTROL

1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring Inspection
7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8~ Packing and Stocking.

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.