SUS303 

 SUS303 austenitic acid resistant stainless-type steel cutting, to improve the performance of steel, in steel add more than 0.60% molybdenum, can be ablative, product cutting resistance and good fire. Corrosion of .303 stainless steel mechanical properties after annealing to stress, tensile 515MPa, yield 205MPa, elongation 40%. Standard 303 stainless steel hardness HRB 90-100, HRC 20-25, Note: HRB100 = HRC20 
 Scope 
 Resistance to fire resistance. Ideal for automatic lathes. Bolts, nuts. Edit this paragraph the chemical composition 
 Carbon C: ≤ 0.15 
 SUS303 
 Si Si: ≤ 1.00 Manganese Mn: ≤ 2.00 S S: ≤ 0.15 Phosphorus P: ≤ 0.20 Chromium Cr: 17.00 ~ 19.00 Ni-Ni: 8.00 ~ 10.00 Mo Mo: ≤ 0.60 can be added 
 Mechanical Properties 
 Tensile strength σb (MPa): ≥ 520 conditions yield strength σ0.2 (MPa): ≥ 205 Elongation δ5 (%): ≥ 40 Reduction of ψ (%): ≥ 50 
 Hardness 
 ≤ 187HB; ≤ 90HRB; ≤ 200HV heat 
 Solution 1010 ~ 1150 ℃ fast-cooling. Microstructure 
 Organizing for the austenitic type. Delivery Status 
 Generally heat treatment delivery, the treatment types specified in the contract; not indicated, according to the non-heat treatment delivery