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Showing posts with the label 34CrMo4 seamless steel tube

What is 34crmo4 seamless steel tube used for?

  34CrMo4 seamless steel tube is an alloy structural steel with high endurance and creep strength at high temperatures. It's mainly used for cylinder manufacturing or structural parts working under high loads such as transmission parts of vehicles and engines; turbine-generator rotor, spindle, heavy load drive shaft, large section parts, locomotive traction gear, supercharger transmission gear, rear shaft, connecting rod and spring clamp with great load, can also be used for the oil drilling pipe joints and fishing tools below 2000m. However, its poor weldability requires preheating before welding, heat treatment after welding and stress elimination. It is generally used after quenching and tempering, and used after high and medium frequency surface quenching or quenching and low and medium temperature tempering. 34CrMo4 Steel gas cylinders are manufacturing special steel cylinders. Requirements are usually smaller carbon content, strictly control the sulphur and phosphorus cont...

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 method...