Name: martensitic stainless steel
Standard: AISI, ASTM
Model: 403
UNS Number: S40300
● 403 properties and applications:
403 (13Cr-low Si) stainless steel, is used for turbine blades and high-stress components of fine stainless steel, heat-resistant steel.
● 403 chemical composition of ①:
Carbon C: ≤ 0.15
Manganese Mn: ≤ 1.00
Si Si: ≤ 0.50
Chromium Cr: 11.5 ~ 13.0
Ni-Ni ②: ≤ 0.60
Phosphorus P: ≤ 0.04
Sulfur S: ≤ 0.03
Mo Mo: ≥ 0.50
Note: ① single value unless otherwise stated herein, are the highest value; ② pipe technology for some time, some types of austenitic stainless steel containing nickel must be slightly higher than the values shown in the table; ③ free; ④ the highest amount of Ta containing 0.10%; ⑤ the highest content of 0.75%; ⑥ the highest content of 0.70%
