Bright Square Pipe
Bright steel pipe (round/square) is a precision steel tube manufactured from high-quality carbon steel (such as St35 and 20#). It boasts high mechanical strength and pressure resistance and is primarily used in the hydraulic machinery and auto parts, air conditioning, and refrigeration industries. Its production process includes cold drawing and cold rolling. Its outer diameter ranges from 3.0 to 60 mm, with a wall thickness of 0.5 to 8 mm. Lengths are typically 6 meters.

This product can be processed through cold bending and flaring to maintain crack-free properties, with surface defects ≤0.02 mm in depth. Anti-corrosion packaging includes anti-rust oil and waterproof film. Delivery options include fixed length (based on theoretical weight) and variable length (based on actual weight).

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Product Description


Bright tube brandChemical composition of bright tube (%)




CSiMnPS

no greater than



St35≤0.180.17-0.370.35-0.650.0350.035
St37.4(10#)≤0.180.17-0.370.35-0.650.0350.035
St45(20#)≤0.250.17-0.370.50-0.800.0350.035
St55(35#)≤0.22≤0.55≤1.500.0350.035
St52(16Mn)≤0.20≤0.55≤1.500.0350.035
CK450.42-0.500.17-0.370.50-0.800.0350.035

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  • 20231013114002296
  • 9b7c59f1-5c87-4805-a34c-eabca9bd6189 - 副本
  • 未标题-4
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