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STAINLESS STEEL TECHNICAL DATA
(CHEMICAL RESISTANCE)

STAINLESS STEEL CHEMICAL RESISTANCE

      Martensite Series Ferrite Series Austenite Series
Chemicals Content Ratio% 410 420 440A 430 446 302 303
304
316
317
309S
310S
Sulfuric Acid ≦0.25 C C C C C A≦30℃
B≦50℃
A≦50℃
B≦Boil
A≦30℃
B≦50℃
0.25~5 C C C C C B≦30℃ B≦50℃ B≦30℃
5~10 C C C C C C B≦30℃ C
10~75 C C C C C C C C
75~95 C C C C C B≦30℃ B≦50℃ B≦30℃
95~100 C C C C C A≦30℃
B≦80℃
same as on the left same as on the left
>100 C C C C C A≦60℃
B≦200℃
same as on the left same as on the left
nitric acid ≦0.5 A≦30℃
B≦Boil
same as on the left B≦50℃ A≦Boil same as on the left same as on the left same as on the left same as on the left
0.5~20 A≦30℃
B≦70℃
B≦70℃ B≦50℃ A≦Boil same as on the left same as on the left same as on the left same as on the left
20~40 B≦30℃ same as on the left C A≦70℃ A≦Boil same as on the left same as on the left same as on the left
40~70 B≦30℃ same as on the left C A≦60℃
B≦90℃
A≦80℃ same as on the left same as on the left A≦Boil
70~95 C C C A≦30℃
B≦50℃
A≦50℃
B≦70℃
same as on the left same as on the left same as on the left
>95 C C C B≦30℃ same as on the left same as on the left same as on the left B≦50℃
Hydrochloric Acid and Chloride Salt ≦5 C C C C C C B≦30℃ C
>5 C C C C C C C C
Hydrofluoric acid   C C C C C C C C
Phosphoric Acid ≦5 C C C C C A≦30℃ A≦Boil A≦30℃
B≦60℃
5~25 C C C C C B≦30℃
(5~10%)
A≦Boil B≦60℃
25~50 C C C C C C A≦95℃
B≦Boil
≦30℃
50~85 C C C C C C A≦30℃
B≦120℃
C
>85 C C C C C C C C
Acetic Acid and Acetic Anhydride ≦10 B≦30℃ B≦Boil same as on the left same as on the left same as on the left A≦Boil same as on the left same as on the left
10~50 C B≦30℃ same as on the left B≦Boil same as on the left A≦80℃
B≦Boil
A≦Boil same as on the left
50~80 C B≦30℃ same as on the left B≦80℃ same as on the left A≦80℃
B≦Boil
A≦Boil A≦80℃
B≦Boil
80~99 C B≦Boil same as on the left B≦80℃ same as on the left A≦80℃
B≦Boil
A≦Boil A≦80℃
B≦Boil
Acetic Anhydride B≦Boil same as on the left same as on the left same as on the left same as on the left same as on the left A≦Boil B≦Boil
calcined soda ≦10 same as on the left same as on the left same as on the left same as on the left same as on the left A≦Boil same as on the left same as on the left
10~50 B≦30℃ same as on the left same as on the left same as on the left same as on the left A≦100℃
B≦Boil
same as on the left same as on the left
50~70 C C C C C A≦100℃
B≦150℃
same as on the left same as on the left
70~absolute
(≦260℃)
C C C C C B B B
Otheralkaline Hydroxide
lithium hydroxidecalcined
potashbarium hydroxide
similar to calcined soda
magnesium hydroxidecalcium hydroxide same as all metal types A class for all ranges
Alkaline Prussiate and Sulfide sodium cyanidekalium cyanidecyanide liquid solution for coating sodium sulfidepotassium sulfide same as calcined soda
Ammonia absolute A A A A A A A A
Ammonium Hydroxideand Humidity and Moisture B≦Boil same as on the left same as on the left same as on the left same as on the left A≦Boil same as on the left same as on the left

STAINLESS STEEL CHEMICAL COMPOSITION

Symbol of Types Chemical Component %
C Si Mn P S Ni Cr Mo other
SUS 201 0.15
and below
1.00
and below
5.50~7.50 0.060
and below
0.030
and below
3.50~5.50 16.00~18.00 N 0.25
and below
SUS 201 0.15
and below
1.00
and below
2.00
and below
0.045
and below
0.030
and below
8.00~10.00 17.00~19.00
SUS 303 0.15
and below
1.00
and below
2.00
and below
0.20
and below
0.15
and below
8.00~10.00 17.00~19.00 (1)
SUS 303Se 0.15
and below
1.00
and below
2.00
and below
0.20
and below
0.060
and below
8.00~10.00 17.00~19.00 Se 0.15
and above
SUS 304 0.08
and below
1.00
and below
2.00
and below
0.045
and below
0.030
and below
8.00~10.50 18.00~20.00
SUS 304L 0.030
and below
1.00
and below
2.00
and below
0.045
and below
0.030
and below
9.00~13.00 18.00~20.00
SUS 304NI 0.08
and below
1.00
and below
2.50
and below
0.045
and below
0.030
and below
7.00~10.50 18.00~20.00 N 0.10~0.25
SUS 305 0.12
and below
1.00
and below
2.00
and below
0.045
and below
0.030
and below
10.50~13.00 17.00~19.00
SUS 305JI 0.08
and below
1.00
and below
2.00
and below
0.045
and below
0.030
and below
11.00~13.50 16.50~19.00
SUS 309S 0.08
and below
1.00
and below
2.00
and below
0.045
and below
0.030
and below
12.00~15.00 22.00~24.00
SUS 310S 0.08
and below
1.50
and below
2.00
and below
0.045
and below
0.030
and below
19.00~22.00 24.00~26.00
SUS 316 0.08
and below
1.00
and below
2.00
and below
0.045
and below
0.030
and below
10.00~14.00 16.00~18.00 2.00~3.00
SUS 316L 0.030
and below
1.00
and below
2.00
and below
0.045
and below
0.030
and below
12.00~15.00 16.00~18.00 2.00~3.00
SUS 321 0.08
and below
1.00
and below
2.00
and below
0.045
and below
0.030
and below
9.00~13.00 17.00~19.00 Ti 5xC%
and above
SUS 347 0.08
and below
1.00
and below
2.00
and below
0.045
and below
0.030
and below
9.00~13.00 17.00~19.00 Nb 10xC%
and above
SUS 384 0.08
and below
1.00
and below
2.00
and below
0.045
and below
0.030
and below
17.00~19.00 15.00~17.00
SUS XM7 0.08
and below
1.00
and below
2.00
and below
0.045
and below
0.030
and below
8.50~10.50 17.00~19.00 Cu 3.00~4.00