● 330 Steel Properties and Applications:
  309,310,314 and 330 stainless steel, nickel, chromium content is higher, in order to improve steel under high temperature oxidation resistance and creep strength. The 309S and 310S stainless steel but 309 and 310 variants, which differ only low carbon content, in order to make the vicinity of the weld to minimize carbide precipitation. 330 stainless steel has a particularly high resistance to carburization and thermal shock resistance.
● 330 steel chemical composition ①:
  Carbon C: ≤ 0.08
  Manganese Mn: ≤ 2.00
  Si Si: 0.75 ~ 1.5
  Chromium Cr: 17.0 ~ 20.0
  Ni-Ni ②: 34.0 ~ 37.0
  Phosphorus P: ≤ 0.04
  Sulfur S: ≤ 0.03
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%