International Standard Comparative

UNS umbering Systems.

Unified Numbering Systems for Metals and Alloys

50x50

The UNS for Metals and Alloys provides a means of correlating many internationally used metal and alloy numbering systems administered by societies, trade associations, and individual users and producers of metals and alloys. Jointly developed by ASTM International and the Society of Automotive Engineers (SAE), it provides the uniformity necessary for efficient indexing, record keeping, data storage and retrieval, and cross-referencing.

UNS Number C GROUP : Copper and Copper Alloys

C10100~C11300 | C11400~C16200 | C16500~C37000 | C37700~C65100

C84400~C94400 | C94500~C99500

UNS Number F GROUP : Cast Irons

F10001~F24830 | F25530~F47003

UNS Number G GROUP : AISI and SAE Carbon and Alloy Steels

G10050~G10250 | G10260~G11080 | G11090~G15720 | G31400~G44270 | G45200~G51600

G51601~G92600 | G92620~G98500

UNS Number J GROUP : Cast Steel (Except Tool Steels)

J02002~J13512 | J13855~J92590 | J92600~J94650

UNS Number K GROUP : Miscellaneous Steels and Ferrous Alloys

K00040~K02300 | K02301~K03017 | K03046~K07000 | K07001~K11630 | K11646~K12238

K12244~K19667 | K19965~K32550 | K32723~K93120 | K93600~K95000

UNS Number N GROUP : Nickel and Nickel Alloys

N02200~N07080 | N07353~N08811 | N08825~N10665

UNS Number S GROUP : Heat and Corrosion Refractory Metals and Alloys

S13800~S30200 | S30215~S30909 | S30940~S31654 | S31700~S35000 | S35500~S43035

S43036~S66545

Comparative Table

UNS Number K GROUP : Heat and Corrosion Refractory Metals and Alloys - S30940~S31654
UNS No
Description
ASTM Brand/Trp
ASTM Equivalent
UNS S30940 Austenitic Cr-Ni-CbHeat 309SCb 313 (309Cb), ASTM A554 (309SCb)
  Resisting Stainless Steel   &nbps;
UNS S30941 Austenitic Cr-Ni-CbHeat 309HCb ASTM A312 / ASTM A312M
  Resisting Steel    
UNS S31000 Austenitic Cr-Ni-CbHeat   ASTM A167 (310), ASTM A182 (310), ASTM A231 (310), ASTM A249 (310),
  Resisting Steel   ASTM A276 (310), ASTM A312 (310), ASTM A314 (310), ASTM A358 (310),
  &nbps;   ASTM A403 (310), ASTM A409 (310), ASTM A473 (310), ASTM A511 (310),
  &nbps;   ASTM A554 (310), ASTM A632 (310),
UNS S31008 Austenitic Cr-Ni-CbHeat 310S ASTM A167 (310 S), ASTM A240 (310 S), ASTM A276 (310 S),
  Resisting Steel   ASTM A314 (310 S), ASTM A473 (310 S), ASTM A479 (310 S),
      ASTM A511 (310 S), ASTM A554 (310 S), ASTM A580 (310 S)
UNS S31009 Austenitic Cr-NiHeat 310H ASTM A312 / ASTM A312M
  Resisting Steel   &nbps;
UNS S31040 Austenitic Cr-NiHeat 310Cb ASTM A313 (310 Cb)
  Resisting Steel    
UNS S31041 Austenitic Cr-NiHeat 310HCb ASTM A312 / ASTM A312M
  Resisting Steel    
UNS S31050 Austenitic Cr-Ni-Mo Stainless   ASTM A213, ASTM A240, ASTM A249, ASTM A312, ASTM A479
  Steel,Low Carbon, with Nitrogen    
UNS S31100 Stainless Steel 744X ASTM A276 (XM-26)
UNS S31200 Ferritic Austenitic Cr-Ni-Mo-N 44LN ASTM A182 (F50)
  Stainless Steel   &nbsp
UNS S31260 Ferritic Austenitic Cr-Ni-Mo-W   ASTM A240, ASTM A789, ASTM A790
  Stainless Steel    
UNS S31400 Austenitic Cr-NiHeat 314 ASTM A276 (314), ASTM A314 (314), ASTM A473 (314), ASTM A580 (314)
  Resisting Steel   &nbps;
UNS S31600 Austenitic Cr-Ni-Mo 316 ASTM A167 (316), ASTM A182 (316), ASTM A193 (316), ASTM A194 (316),
  Stainless Steel   ASTM A213 (316), ASTM A240 (315), ASTM A249 (316), ASTM A269 (316),
      ASTM A276 (316), ASTM A312 (316), ASTM A313 (316), ASTM A314 (316),
      ASTM A320 (316), ASTM A358 (316), ASTM A368 (316), ASTM A376 (316),
      ASTM A403 (316), ASTM A409 (316), ASTM A430 (316), ASTM A473 (316),
      ASTM A478 (4316), ASTM A479 (316), ASTM A511 (316), ASTM A554 (316)
UNS S31603 Austenitic Cr-Ni-Mo 316L ASTM A167 (316L), ASTM A182 (316L), ASTM A213 (316L),
  Stainless Steel   ASTM A240 (316L), ASTM A249 (316L), ASTM A269 (316L),
  (Low Carbon)   ASTM A276 (316L), ASTM A312 (316L), ASTM A314 (316L),
      ASTM A403 (316L), ASTM A473 (316L), ASTM A478 (316L),
      ASTM A479 (316L), ASTM A500 (316L), ASTM A554 (316L),
      ASTM A580 (316L), ASTM A632 (316L), ASTM A688 (316L)
UNS S31609 Austenitic Cr-Ni-Mo 316H ASTM A182 (316H), ASTM A213 (316H), ASTM A240 (316H),
  Stainless Steel   ASTM A249 (316H), ASTM A312 (316H), ASTM A358 (316H),
  (High Carbon)   ASTM A376 (316H), ASTM A403 (316H), ASTM A430 (316H),
  &nbps;   ASTM A479 (316H)
UNS S31635 Austenitic Cr-Ni-Mo 316 Ti ASTM A313 (316Ti)
  Stainless Steel    
  (Titanium Stabilized)   &nbps;
UNS S31640 Austenitic Cr-Ni-Mo 316 Cb ASTM A313 (316Cb)
  Stainless Steel   &nbps;
  (Columbium Stabilized)    
UNS S31651 Austenitic Nitrogen Bearing 316 N ASTM A182 (316N), ASTM A213 (316N), ASTM A240 (316N),
  Cr-Ni-Mo Stainless Steel   ASTM A249 (316N), ASTM A276 (316N), ASTM A312 (316 N),
      ASTM A358 (316N), ASTM A376 (316N), ASTM A403 (316 N),
      ASTM A430 (316N), ASTM A213 (316N)
UNS S31653 Austenitic Nitrogen Bearing 316LN ASTM A276
  Cr-Ni-Mo Stainless Steel    
UNS S31654 Austenitic Nitrogen Bearing 316L(Hi)N ASTM A276
  Cr-Ni-Mo Stainless Steel    
       
       
       
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