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ASTM A312

 

 

ASTM A312 Pipes Grade

 

UNS C Mn P S Si Cr Ni Mo Ti Nb N
TP304 S30400 0.08 2.0 0.045 0.030 1.0 18.0-20.0 8.0-11.0        
TP304L S30403 0.035 2.0 0.045 0.030 1.0 18.0-20.0 8.0-13.0        
TP304H S30409 0.04-0.10 2.0 0.045 0.030 1.0 18.0-20.0 8.0-11.0        
TP304N S30451 0.08 2.0 0.045 0.030 1.0 18.0-20.0 8.0-18.0       0.10-0.16
TP304LN S30453 0.035 2.0 0.045 0.030 1.0 18.0-20.0 8.0-12.0       0.10-0.16
TP309S S30908 0.08 2.0 0.045 0.030 1.0 22.0-24.0 12.0-15.0 0.75      
TP309H S30909 0.04-0.10 2.0 0.045 0.030 1.0 22.0-24.0 12.0-15.0        
TP309Cb S30940 0.08 2.0 0.045 0.030 1.0 22.0-24.0 12.0-16.0 0.75   10xC min
1.10 max
 
TP309HCb S30941 0.04-0.10 2.0 0.045 0.030 1.0 22.0-24.0 12.0-16.0 0.75   10xC min
1.10 max
 
TP310S S3108 0.08 2.0 0.045 0.030 1.0 24.0-26.0 19.0-22.0 0.75      
TP310H S3109 0.04-0.10 2.0 0.045 0.030 1.0 24.0-26.0 19.0-22.0        
TP310Cb S31040 0.08 2.0 0.045 0.030 1.0 24.0-26.0 19.0-22.0 0.75   10xC min
1.10 max
 
TP310HCb S31041 0.04-0.10 2.0 0.045 0.030 1.0 24.0-26.0 19.0-22.0 0.75   10xC min
1.10 max
 
TP316 S3160 0.08 2.0 0.045 0.030 1.0 16.0-18.0 11.0-14.0 2.0-3.0      
TP316L S31603 0.035 2.0 0.045 0.030 1.0 16.0-18.0 10.0-14.0 2.0-3.0      
TP316H S31609 0.04-0.10 2.0 0.045 0.030 1.0 16.0-18.0 11.0-14.0 2.0-3.0      
TP316Ti S31635 0.08 2.0 0.045 0.030 0.75 16.0-18.0 10.0-14.0 2.0-3.0 5x
(C-N)
-0.70
  0.10
TP316N S31651 0.08 2.0 0.045 0.030 1.0 16.0-18.0 10.0-14.0 2.0-3.0     0.10-0.16
TP316LN S31653 0.035 2.0 0.045 0.030 1.0 16.0-18.0 11.0-14.0 2.0-3.0     0.10-0.16
TP317 S3170 0.08 2.0 0.045 0.030 1.0 18.0-20.0 10.0-14.0 3.0-4.0      
TP317L S31703 0.035 2.0 0.045 0.030 1.0 18.0-20.0 11.0-15.0 3.0-4.0      
TP321 S3210 0.08 2.0 0.045 0.030 1.0 17.0-19.0 9.0-12.0       0.10
TP321H S32109 0.04-0.10 2.0 0.045 0.030 1.0 17.0-19.0 9.0-12.0       0.10
TP347 S3470 0.08 2.0 0.045 0.030 1.0 17.0-19.0 9.0-13.0        
TP347H S34709 0.04-0.10 2.0 0.045 0.030 1.0 17.0-19.0 9.0-13.0        
TP347LN S34751 0.05-0.02 2.0 0.045 0.030 1.0 17.0-19.0 9.0-13.0     0.20-
50.0
0.06-0.10
TP348 S3480 0.08 2.0 0.045 0.030 1.0 17.0-19.0 9.0-13.0        
TP348H S34809 0.04-0.10 2.0 0.045 0.030 1.0 17.0-19.0 9.0-13.0      

ASTM A312 Specifications

This specification covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.