Standard
GB/T 8162, EN 10297-1
Size Range
OD 70–711 mm (heat-treated)
Category
Seamless Steel Pipe
Seamless mechanical tubes with enhanced precision and dimensional accuracy for applications requiring tight tolerances, smooth surfaces, and high strength. Supplied to ASTM A519, GB/T 8162, EN 10297-1, EN 10210-1, and DIN 1629, covering carbon and alloy steel grades for automotive, aerospace, high-pressure hydraulic, and precision machinery applications.
Applications
- → Automotive — precision structural and mechanical components
- → Aerospace — structural tubing requiring tight dimensional tolerances
- → Oil and gas — downhole and surface mechanical applications
- → High-pressure hydraulic systems — cylinders and pressure vessels
- → Precision machinery — machine tool components and shafts
- → Power generation — mechanical and structural tubing
- → Medical devices — high-strength precision tubing
- → Industrial machinery — structural members and mechanical parts
Standards & Certifications
- GB/T 8162
- EN 10297-1
- EN 10210-1
- DIN 1629
- ASTM A519
Inspection & Testing
- → Tensile test — Yield strength, UTS, elongation per ASTM A370; one per heat/lot
- → Hardness test — Brinell (HBW) per heat/lot; Rockwell HRC on request for quench/temper conditions
- → Hydrostatic test — Available on request per applicable ASTM standard
- → NDE — Eddy current or ultrasonic per ASTM A519 supplementary requirements
- → Dimensional inspection — OD, WT, straightness per ASTM A519 / EN 10297-1; 100% per lot
- → MTC — EN 10204 3.1 mill test certificate standard; 3.2 third-party on request
Supply Enquiry — Mechanical Tube
Tell us your standard, grade, OD, wall thickness, delivery condition, quantity, and delivery port. We will respond within one business day with availability and lead time.
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