Description: 1. Standard: ASTM A554, JIS G3446. 2. Grade: 201, 202, 301, 304, 304L, 316,316L 3. Outer diameter (mm): Square Tube/Pipe 10x10, 12x12, 15x15, 17x17, 18x18, 19x19, 20x20, 22x22, 23x23, 24x24, 25x25, 28x28, 30x30, 36x36, 38x38, 50x50, 60x60, 70x70, 80x80, 100x100 4. Wall thickness: Square Tube/Pipe: 0.28mm to 1.5mm 5. Tolerance: a) Outer diameter: +/-0.15mm b) Thickness: +/-10% c) Length: +/-4.8mm - 0mm 6. Surface: polish, hairline, satin finish. 7. Application: Structural, decoration (fencing, railing, balcony balustrades, antitheft doors/ windows, gate fittings, staircases, furniture fittings, sanitary wares fittings, kitchen wares fittings, mechanical fittings, tripod for camera, etc). 8. Packing: plastic bag or customize. 9. Test: chemical composition analysis by SPECTROTEST.