Chemical composition and mechanical properties of stainless steel coils | ||||||||||||||||||
Grade | Chemical Composition (%) | Mechanieal Performece | ||||||||||||||||
C | Si | Mn | P | S | Ni | Cr | Mo | Hardness | ||||||||||
201 | ≤0.15 | ≤1.00 | 5.5/7.5 | ≤0.060 | ≤0.030 | 3.5/5.5 | 16.0/18.0 | - | HB≤241,HRB≤100, HV≤240 | |||||||||
304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 8.0/11.0 | 18.00/20.00 | - | HB≤187,HRB≤90,HV≤200 | |||||||||
316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 10.00/14.00 | 16.0/18.0 | 2.00/3.00 | HB≤187, HRB≤90 HV≤200 | |||||||||
316L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 10.00/14.00 | 16.0/18.0 | 2.00/3.00 | HB≤187, HRB≤90 HV≤200 | |||||||||
410 | ≤0.15 | ≤1.00 | ≤1.25 | ≤0.060 | ≤0.030 | ≤0.060 | 11.5/13.5 | - | HB≤183, HRB≤88 HV≤200 | |||||||||
430 | ≤0.12 | ≤1.00 | ≤1.25 | ≤0.040 | ≤0.03 | - | 16.00/18.00 | - | HB≤183, HRB≤88 HV≤200 |
Surface Treatment | ||||||
Finish | Thickness | Characteristics | Applications | |||
No. 1 | 3.0mm~50.0mm | Finished by hot-rolling, annealing and pickling, characterized by white pickled surface | Chemical industry equipment, Industrial tanks | |||
No. 2B | 0.3mm~6.0mm | Finished by heat treatment, pickling after cold rolling, followed by skin pass line to be more brighter and smooth surface | General Application Medical Instruments,Tableware | |||
No. BA | 0.5mm~2.0mm | Bright heat treatment after cold rolling | Kitchen utensil, kitchen ware,architectural purpose | |||
No. 4 | 0.4mm~3.0mm | Polishing with No. 150 to No.180 mesh abrasivesThe most popular finishes | Milk & Food processing acilities, Hospital Equipment, Bath-tub | |||
No. 8 | 0.5mm~2.0mm | A mirror-like reflective surface by polishing with finer abrasives over 800 mesh | Reflector, Mirror, Interior-Exterior decoration forbuilding | |||
HL | 0.4mm~3.0mm | Finished by continuous linear polishing | Architectural purposes, escalators, kitchen ware vehicles |