EN10305-1 34MnB5 OD15 WT1.2 +N Cold Drawn Precision Steel Tube +/-0.05mm Wall Tolerance for Automotive Seat Frame

EN10305-1 34MnB5 OD15 WT1.2 Cold Drawn Precision Steel Tube +/-0.05mm Wall Tolerance

Product overview. This EN10305-1 grade 34MnB5 precision steel tube is cold drawn to a +/-0.05mm wall tolerance and supplied in +N delivery condition. Wall thickness is controlled within +/-5 percent and straightness within 0.3 mm per meter, so the tube seats cleanly in automotive seat frame assemblies without extra sizing, reaming or scrap loss on the line.

Tolerance control scheme

Key features

• Tight dimensional window on OD, wall and bore keeps fit and roundness repeatable batch to batch
• Boron micro alloyed, produced on cold drawing lines with in-process laser gauging
• No cracking under flaring, flattening and cold bending tests
• Holding pressure without leakage after hydraulic proof test
• Ends cut square and deburred, plastic caps fitted on both ends

Typical application

Automotive Seat Frame and similar assemblies that depend on stable bore and OD tolerance for sealing, guiding or fitting.

Quality documents

EN 10204 3.1 mill test certificate, dimensional inspection report, eddy current or hydrostatic test report on request. ISO 9001 and IATF 16949 certified production.

Packing and shipping

Anti-rust oil, plastic end caps, woven bag bundled, seaworthy wooden case. Hexagonal or square bundled packing available for container loading.

Send your drawing and tolerance requirement, we will confirm the closest mill standard and quote within 24 hours.