S.S. 200 Serious
Grade Chemical Compound Mechanical Property
  C Si Mn P S Ni Cr N Cu Y/S T/S EL Hardness
% % % % % % % % % N/mm2 N/mm2 %  
201
(1% Ni)
≤0.15 ≤1.00 8~11 ≤0.060 ≤0.030 0.9~1.5 15~17 ≤0.25 1.5~2 ≥310 ≥655 ≥35 ≤105
202
(4% Ni)
≤0.15 ≤1.00 6~9 ≤0.060 ≤0.030 3.5~5 15~17 ≤0.25 1.5~2 ≥260 ≥620 ≥40 ≤100
201 and 202 are in compliance with the specifications of steel mills.

S.S. 300 Serious
Grade Chemical Compound Mechanical Property
  C Si Mn P S Ni Cr Mo T/S Y/S EL Hardness
% % % % % % % % N/mm2 N/mm2 %  
304 ≤0.08 ≤1.00 ≤2 ≤0.045 ≤0.03 8~10 18~20   ≥205 ≥520 ≥40 ≤90
304L ≤0.03 ≤1.00 ≤2 ≤0.045 ≤0.03 8~10 18~20   ≥175 ≥480 ≥40 ≤90
316 ≤0.08 ≤1.00 ≤2 ≤0.045 ≤0.03 10~14 16~18 2~3 ≥205 ≥515 ≥40 ≤90
316L ≤0.03 ≤1.00 ≤2 ≤0.045 ≤0.03 10~14 16~18 2~3 ≥170 ≥480 ≥40 ≤95
316Ti ≤0.03 ≤1.00 ≤2 ≤0.045 ≤0.03 12~15 16~18 2~3 ≥205 ≥520 ≥40 ≤90
321 ≤0.08 ≤1.00 ≤2 ≤0.045 ≤0.03 12~15 16~18 2~3 ≥205 ≥520 ≥40 ≤90

Stainless Steel 400 Series
Grade Chemical Compound Mechanical Property
  C Si Mn P S Ni Cr N Cu Y.S. T.S. EL Hardness
% % % % % % % % % N/mm2 N/mm2 %  
430 ≤0.12 ≤1.00 ≤1 ≤0.040 ≤0.030   16~18     ≥205 ≥450 ≥22 ≤88