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 : Miscellaneous Steels and Ferrous Alloys - K00040~K02300
UNS No
Description
ASTM Brand/Trp
ASTM Equivalent
UNS K00040 Carbon Steel. Special Killed.   ASTM A620
  Deep Drawing    
UNS K00100 Enameling Steel   ASTM A424 (I)
UNS K00400 Enameling Steel   ASTM A424 (II ASTM A)
UNS K00600 Carbon Steel   ASTM A594 (4)
  Magnetic Properties    
UNS K00800 Carbon Steel. Special   ASTM A594 (3)
  Magnetic Properties    
UNS K00801 Enameling Steel   ASTM A424 (II B)
       
UNS K01000 Carbon Steel. Special   ASTM A594 (2)
  Magnetic Properties    
UNS K01001 Carbon Steel   ASTM A254
UNS K01200 Carbon Steel   ASTM A178 (A), ASTM A179
UNS K01201 Carbon Steel   ASTM A192, ASTM A226
UNS K01500 Carbon Steel. Special   ASTM A594 (I)
  Magnetic Properties    
UNS K01501 Carbon Steel   ASTM A414 (A)
UNS K01502 Carbon Steel   ASTM A730 (A)
UNS K01503 Carbon Steel   ASTM A194 (I)
UNS K01504 Carbon Steel   ASTM A161 (LCST)
UNS K01505 Carbon Steel   ASTM A67
UNS K01506 Carbon Steel   ASTM A539, ASTM A587
UNS K01507 Carbon Steel   ASTM A109 (4, 5)
       
UNS K00600 Carbon Steel   ASTM A678 (A)
UNS K00601 Carbon Steel   ASTM A131 (CS) (DS)
UNS K00700 Carbon Steel   ASTM A285/ ASTM A 285M (A)
UNS K00701 Carbon Steel   ASTM A662/ ASTM A662M (A)
       
UNS K01800 Carbon Steel   ASTM A516/ ASTM A516M (55)
UNS K01801 Carbon Steel   ASTM A131 (E)
UNS K01802 Carbon Steel   ASTM A633 (A)
UNS K01803 Carbon Steel   ASTM A633
UNS K01804 Carbon Steel   ASTM A284
UNS K01807 Carbon Steel   ASTM A214, ASTM A556 (A2), ASTM A557 (A2)
UNS K02007 Carbon Steel   ASTM A502 (1)
       
UNS K02000 Carbon Steel   ASTM A730 (B)
UNS K02001 Carbon Steel   ASTM A284, ASTM A515 (55)
UNS K02002 Carbon Steel   ASTM A678 (B)
UNS K02004 Carbon Steel   ASTM A595 (A)
UNS K02005 Carbon Steel   ASTM A595 (B)
UNS K02007 Carbon Steel   ASTM A662/ ASTM A662M (C)
       
UNS K02100 Carbon Steel   ASTM A516/ ASTM A516M (60)
UNS K02101 Carbon Steel   ASTM A131 (D)
UNS K02102 Carbon Steel   ASTM A131 (B)
UNS K02104 Carbon Steel   ASTM A524
UNS K02200 Carbon Steel   ASTM A285/ ASTM A285M (B)
UNS K02201 Carbon Steel   ASTM A414 (B)
UNS K02202 Carbon Steel   ASTM A442/ ASTM A442M (55)
UNS K02203 Carbon Steel   ASTM A662/ ASTM A662M (B)
UNS K02204 Carbon Steel   ASTM A678 (C)
UNS K02300 Carbon Steel   ASTM A131 (A)
       
       
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