Product name: Mechanical tube Product keyword: Steel pipe, seamless pipe, mechanical tube, structural pipe, steel tube Brief description: Mechanical tube, outside diameter: 6mm to 168.3mm, wall thickness: 0.5mm-25mm, heat-treatment: annealed, stress relieved, normalized Product details: Standards: astm a519, din2391 Sizes: od 6~168.3mm, wall thickness 0.5 ~25mm Heat-treatment: annealed, stress relieved, normalized Surface: passivated, oiled, or bright and smooth Coating: 1. Olive green coated seamless steel pipe Coat thickness: 8-25 micrometers Length of pipe coated: less than 3.5m Free of cr6 2. Galvanized seamless steel pipe Zinc thickness as per customers¡¯ needs and standard requirements Usage examples: A. High pressure fuel tube Standard: din 2391 Specification: 6x1.2, 6x1.5, 6x1.8, 6x2 etc. Surface: bright and smooth B. Automobile air-conditioner tube Process: heat treatment Surface: bright and smooth