34CrMo4 alloy Steel Tube – High-Tensile Alloy Seamless Tubing for Pressure & Structural Applications

PRODUCT SPECIFICATION

34CrMo4 steel tube is a chromium-molybdenum alloy seamless steel pipe specified under the EN 10297-1 standard. It offers a combination of high tensile strength, good ductility, and excellent resistance to high temperatures and pressure. The grade is equivalent to AISI 4135 and GB 30CrMo, making it a widely used material in mechanical and structural engineering applications.

These tubes are typically delivered in normalized or quenched & tempered condition, with tight dimensional tolerances and clean inner and outer surfaces, making them suitable for precision machining and pressure-related applications.

• High tensile and yield strength
• Excellent fatigue and impact resistance
• Good high-temperature performance
• Suitable for welding and machining
• Smooth inner bore for fluid and gas flow
• Available in cold-drawn or hot-rolled condition

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PRODUCT DISPLAY

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Application

34CrMo4 alloy steel tubes are widely used in high-demand environments that require strength, precision, and heat resistance. Typical applications include:

• High-pressure boilers and pressure vessels
• Automotive components – drive shafts, axle tubes, suspension parts
• Petrochemical and energy industry – oil & gas pipelines, heat exchangers
• Mechanical engineering – hydraulic cylinders, heavy-duty rollers
• Structural tubing for cranes, machinery, and offshore applications
• Aerospace support systems under stress

With its outstanding mechanical performance and versatility, 34CrMo4 is a go-to material for industries where both internal pressure and external loads are present.

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ASTM 4135 CHEMICAL ELEMENT CONTENT (%)