304 316L Hot Rolled Stainless Steel Profile U Channel for Building Structural Engineering Projects

Main types of stainless profiles: 1) Equal angle: Equal sides, L-shaped section, for supports, frames, trusses; 2) Unequal angle: Unequal sides, for special structures; 3) Channel: C-shaped section, for beams, columns, frames; 4) Flat bar: Rectangular section, for gaskets, guide rails, decorative strips; 5) Round bar: Circular section, for shafts, bolts, pins; 6) Square bar: Square section, for structures, mechanical parts; 7) Hexagonal bar: Hexagonal section, for bolts, nuts

1) Composition: 201 contains Cr14-16%, Ni1-1.5%, Mn5.5-7.5% (manganese replaces nickel); 304 contains Cr18-20%, Ni8-10.5%; 2) Corrosion resistance: 201 poorer corrosion resistance, prone to rust in humid/salt spray environments; 304 good corrosion resistance, generally does not rust; 3) Price: 201 40-50% lower than 304; 4) Magnetism: 201 weak magnetic, 304 non-magnetic (may become weak magnetic after processing);

Yes. Stainless profile welding notes: 1) Welding method: Austenitic stainless steel recommend TIG, thick plate can use SMAW; 2) Welding material: Select same or higher grade wire/electrode (e.g., 304 uses ER308, 316L uses ER316L); 3) Welding process: Low current, fast welding, multi-layer multi-pass, control interpass temperature <=150C, avoid overheating and deformation; 4) Post-weld treatment: Clean weld slag, pickling passivation or electropolishing, restore corrosion resistance;

Stainless profile theoretical weight formulas: 1) Equal angle: weight (kg/m) = 0.00793 x leg thickness x (2 x leg width - leg thickness) (304 density 7.93); 2) Channel: weight (kg/m) = 0.00793 x web thickness x [height + 2 x (leg width - web thickness)]; 3) Flat bar: weight (kg/m) = 0.00793 x thickness x width; 4) Round bar: weight (kg/m) = 0.00623 x diameter squared (304 density 7.93, simplified coefficient 0.00623);

Stock from 1 bar 3-7 days, common sizes (304 angle 30x30-100x100, channel 50-100, flat) same-day pickup; special materials (316L), large sizes (>150mm) and cold drawn profiles custom rolling from 500kg 15-30 days. Cutting, drilling, bending, welding, polishing, brushing etc. fabrication services available.