International Standard Comparative

UNS numbering 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 A GROUP : Aluminum and Aluminum Alloys - A01001~A03080
UNS No
Description
Brand/Trp
AA Eq.
ASTM Eq
UNS A01001 Aluminum Goundry Alloy. Ingot   AA 100.1 ASTM B179 (100.1)
UNS A01301 Aluminum Goundry Alloy. Ingot   AA 130.1 ASTM B179 (130.1)
UNS A01501 Aluminum Goundry Alloy. Ingot   AA 150.1 ASTM B179 (150.1)
UNS A01601 Aluminum Goundry Alloy. Ingot   AA 160.1  
UNS A01701 Aluminum Goundry Alloy. Ingot   AA 170.1 ASTM B179 (170.1)
UNS A02010 Aluminum Goundry Alloy. Casting   AA 201.0 ASTM B26 (201.0)
UNS A02012 Aluminum Goundry Alloy. Ingot   AA 201.2 ASTM B170 (201.2)
UNS A02030 Aluminum Goundry Alloy. Ingot   AA 203.0  
UNS A02032 Aluminum Goundry Alloy. Ingot   AA 203.2  
UNS A02040 Aluminum Goundry Alloy. Casting   AA 204.0 ASTM B26 (204.0)
        ASTM B108 (204.0)
UNS A02042 Aluminum Goundry Alloy. Ingot   AA 204.2 ASTM B179 (204.2)
UNS A02060 Aluminum Goundry Alloy. Casting   AA 205.0 SFA 5.10 (R205.0)
UNS A02062 Aluminum Goundry Alloy. Ingot   AA 205.2  
UNS A02080 Aluminum Goundry Alloy. Casting   AA 208.0 ASTM B26 (208.0)
UNS A02081 Aluminum Goundry Alloy. Ingot   AA 208.1 ASTM B179 (208.1)
UNS A02082 Aluminum Goundry Alloy. Ingot   AA 208.2 ASTM B179 (208.2)
UNS A02130 Aluminum Goundry Alloy. Casting   AA 213.0  
UNS A02131 Aluminum Goundry Alloy. Ingot   AA 213.1  
UNS A02220 Aluminum Goundry Alloy. Casting   AA 222.0 ASTM B26 (222.0)
        ASTM B108 (222.0)
UNS A02221 Aluminum Goundry Alloy. Ingot   AA 222.1 ASTM B179 (222.1)
UNS A02240 Aluminum Goundry Alloy. Casting   AA 224.0  
UNS A02242 Aluminum Goundry Alloy. Ingot   AA 224.2  
UNS A02400 Aluminum Goundry Alloy. Casting   AA 240.0  
UNS A02401 Aluminum Goundry Alloy. Ingot   AA 240.1  
UNS A02420 Aluminum Goundry Alloy. Casting   AA 242.0 SFA 5.10 (R242.0)
        ASTM B26 (242.0)
        ASTM B108 (242.0)
UNS A02421 Aluminum Goundry Alloy. Ingot   AA 242.1 ASTM B179 (242.1)
UNS A02422 Aluminum Goundry Alloy. Ingot   AA 242.2 ASTM B179 (242.2)
UNS A02430 Aluminum Goundry Alloy. Casting   AA 243.0  
UNS A02431 Aluminum Goundry Alloy. Ingot   AA 243.1  
         
UNS A02950 Aluminum Goundry Alloy. Casting   AA 295.0 SFA5.10 (R295.0)
        ASTM B26 (295.0)
UNS A02951 Aluminum Goundry Alloy. Ingot   AA 295.1 ASTM B179 (295.1)
UNS A02952 Aluminum Goundry Alloy. Ingot   AA 295.2 ASTM B179 (295.2)
UNS A02960 Aluminum Goundry Alloy. Casting   AA 296.0  
         
UNS A02961 Aluminum Goundry Alloy. Ingot   AA 296.1  
UNS A02962 Aluminum Goundry Alloy. Ingot   AA 296.2  
         
UNS A03050 Aluminum Goundry Alloy. Casting   AA 305.0  
UNS A03052 Aluminum Goundry Alloy. Ingot   AA 305.2  
UNS A03080 Aluminum Goundry Alloy. Casting   AA 308.0  
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