Applicable Standards of 34CrMo4 seamless steel tube

 34CrMo4 seamless steel tube  has high durable strength and creep strength at high temperature, good impact toughness at low temperature, good hardenability, no tendency to overheat, small quenching deformation, plasticity is fair when cold side shape, medium machinability.  Poor weldability, pre-heating before welding, post-welding heat treatment and stress elimination, generally used after quenching and tempering treatment, can also be used after high and medium frequency surface quenching or quenching and low and medium temperature tempering.  

Applicable Standards of 34CrMo4 seamless steel tube

--- EN 10083-1 steel for quenching and tempering generaltchnical delivery conditions

--- ASTM A370 standard test methods and definitions for mechanical testing of steel products

--- JIS G3429 seamless steel tubes as  high pressure gas cylinder tubes.

--- ASTM E112 standard test methods for determining average grain size

--- ASTM E45 standard test methods for determining the inclusion content of steel

Test and inspection of 34CrMo4 seamless steel pipe

Chemical composition (Ladle and product analysis)

Tensile test (on heat treated samples)

Impact test (on heat treated samples)

Flattening test (on heat treated samples)

Bending test (on heat treated samples)

Hardness test (on heat treated samples)

Electromagnetic inspection

Ultrasonic inspection result

Grain size

Inclusion rating

Gas content

Tramo elements content

Sulphide stress cracking test result

Our main business range is listed as follows:

Carbon Seamless Steel pipe/tube

Hydraulic cylinder tube(Honed tube)

Hard chrome plated rod/bar/shaft(Piston rod)

Ready to hone tube

ST52 Honed tube

Hydraulic Cylinder Barrel

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