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 - K07001~K11630
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UNS No
Description
ASTM Brand/Trp
ASTM Equivalent
UNS K07001 Carbon Steel   ASTM A229
UNS K07100 Carbon Steel   ASTM A648 (III)
UNS K07200 Carbon Steel   ASTM A25 (U), ASTM A504 (U), ASTM A583 (U), ASTM A631 (U)
UNS K07201 Carbon Steel   ASTM A25 (C), ASTM A504 (C), ASTM A583 (C), ASTM A631 (C)
UNS K07301 Carbon Steel   ASTM AI (91-120)
UNS K07500 Carbon Steel   ASTM A1 (121 and over), ASTM A759
UNS K07700 Carbon Steel   ASTM A2 (B)
UNS K07701 Carbon Steel   ASTM A551 (C, CHT, DHT)
       
UNS K08200 Carbon Steel   ASTM A679
UNS K08201 Carbon Steel   ASTM A2 (C)
UNS K08500 Carbon Steel   ASTM A288
       
UNS K10623 Alloy Steel EH 11K ASTM A735/ ASTM A735M
UNS K11140 Steel Electrode   ASTM A518 (ER70S-6)
UNS K11210 Alloy Steel   ASTM A65
UNS K11224 Alloy Steel   ASTM A562/ 562M
UNS K11267 High Strength, Low Alloy.   ASTM A333 (4)
  Precipitation Hardening Steel    
UNS K11356 Alloy Steel   ASTM A714 (IV)
UNS K11422 Alloy Steel   ASTM A209 (T1b), ASTM A250 (T1b)
UNS K11430 Alloy Steel   ASTM A502 (3A), ASTM A 588 (A)
UNS K11500 Alloy Steel   ASTM A587
UNS K11501 High-Strenght Low-Alloy Steel   ASTM A715 (1)
UNS K11502 High-Strenght Low-Alloy Steel   ASTM A715 (2)
UNS K11504 High-Strenght Low-Alloy Steel   ASTM A715 (4)
       
UNS K11505 High-Strenght Low-Alloy Steel   ASTM A715 (5)
UNS K11506 High-Strenght Low-Alloy Steel   ASTM A715 (6)
UNS K11507 High-Strenght Low-Alloy Steel   ASTM A715 (7)
UNS K11508 High-Strenght Low-Alloy Steel   ASTM A715 (8)
UNS K11509 High-Strenght Low-Alloy Steel   ASTM A656 (2)
UNS K11510 High-Strenght Low-Alloy Steel   ASTM A242 (1)
UNS K11511 Alloy Steel   ASTM A514 (C), ASTM A517 (C)
UNS K11522 Alloy Steel   ASTM A161 (T1), ASTM A209 (T1), ASTM A250 (T1), ASTM A335 (PI),
      ASTM A369 (FP1)
UNS K11523 Alloy Steel   ASTM A514 (K), ASTM A517 (K)
UNS K11526 Alloy Steel   ASTM A595 (C)
UNS K11535 Alloy Steel   ASTM A423 (I)
UNS K11538 Alloy Steel   ASTM A588 (C)
UNS K11540 Alloy Steel   ASTM A423 (2)
UNS K11541 Alloy Steel   ASTM A588 (F)
UNS K11547 Alloy Steel   ASTM A213 (T2), ASTM A335 (P2), ASTM A369 (FP2)
UNS K11552 Alloy Steel   ASTM A588 (D)
       
UNS K11562 Alloy Steel   ASTM A213 (T12), ASTM A335 (P2), ASTM A369 (FP12)
UNS K11564 Alloy Steel   ASTM A182 (F12), ASTM A336 (F12)
UNS K11567 Alloy Steel   ASTM A588 (E)
UNS K11572 Alloy Steel   ASTM A182 (F11), ASTM A336 (FN, F11A)
UNS K11576 Alloy Steel   ASTM A514 (F), ASTM A517 (F), ASTM A592 (F)
UNS K11578 Alloy Steel   ASTM A335 (P15)
UNS K11591 Alloy Steel   ASTM A405 (P24)
UNS K11597 Alloy Steel   ASTM A199 (T11), ASTM A200 (T11), ASTM A213 (T11),
      ASTM A335 (P11), ASTM A369 (FP11)
UNS K11598 Alloy Steel   ASTM A541 (5)
       
UNS K11625 Alloy Steel   ASTM A514 (J), ASTM A517 (J)
UNS K11630 Alloy Steel   ASTM A514 (B), ASTM A517 (B)
       
       
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