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 A GROUP : Aluminum and Aluminum Alloys - A33551~A87475
UNS No
Description
Brand/Trp
AA Eq.
ASTM Eq
UNS A33551 Aluminum Goundry Alloy. Ingot   AA C355.1  
UNS A33552 Aluminum Goundry Alloy. Ingot   AA C355.2 ASTM B179 (C355.2)
UNS A33560 Aluminum Goundry Alloy. Casting   AA C356.0  
UNS A33562 Aluminum Goundry Alloy. Ingot   AA C356.2  
UNS A33570 Aluminum Goundry Alloy. Casting   AA C357.0  
UNS A33572 Aluminum Goundry Alloy. Ingot   AA C357.2  
UNS A34430 Aluminum Goundry Alloy. Casting   AA C443.0 ASTM B85 (C443.0)
UNS A34431 Aluminum Goundry Alloy. Ingot   AA C443.1 ASTM B179 (C443.1)
UNS A34432 Aluminum Goundry Alloy. Ingot   AA C443.2 ASTM B179 (C443.2)
A43570 Aluminum Goundry Alloy.   AA D357.0  
UNS A36560 Aluminum Goundry Alloy. Casting   AA F656.0  
UNS A63562 Aluminum Goundry Alloy. Ingot   AA F356.2  
UNS A82004 Aluminum Goundry Alloy.   AA Alclad 2004  
  Heat Treatable      
UNS A82014 Wrought Aluminum Alloy.   AA Alclad 2014 ASTM B209
  Clad with Wrought Aluminum      
  Alloy. Heat Treatable      
UNS A82024 Wrought Aluminum Alloy.   AA Alclad 2024; ASTM B209
  Clad with Wrought Aluminum   1-1/2% Alclad 2024;  
  Alloy. Heat Treatable   Alclad One Side 2024;  
      1-1/2% Alcalad  
      One Side 2024;  
UNS A82219 Wrought Aluminum Alloy.   AA Alclad 2219 ASTM B209
  Clad with Wrought Aluminum      
  Alloy. Heat Treatable      
UNS A83003 Wrought Aluminum Alloy.   AA No. 11Brazing  
  Clad with Wrought Aluminum   Sheet No. 12 Brazing  
  Alloy. Heat Treatable   Sheet  
UNS A86061 Wrought Aluminum Alloy.   AA Alclad 6061 ASTM B209
  Clad with Wrought Aluminum      
  Alloy. Heat Treatable      
UNS A86951 Wrought Aluminum Alloy.
  AA No. 21 Brazing  
  Clad with Wrought Aluminum   Sheet; No. 22 Brazing  
  Alloy. Heat Treatable   Sheet  
UNS A87050 Wrought Aluminum Alloy.   AA Alclad 7050  
  Clad with Wrought Aluminum      
  Alloy. Heat Treatable     ASTM B209
UNS A87075 Wrought Aluminum Alloy.   AA Alclad 7075;

  Clad with Wrought Aluminum   2-1/2% Alclad 7075;  
  Alloy. Heat Treatable   Alclad One Side 7075;  
      2-1/2% Alclad  
      One Side 7075;  
UNS A87079 Wrought Aluminum Alloy.   AA Alclad 7079  
  Clad with Wrought Aluminum      
  Alloy. Heat Treatable     ASTM B209
UNS A87178 Aluminum Goundry Alloy.   AA Alclad 7178  
  Clad with Wrought Aluminum      
  Alloy. Heat Treatable      
UNS A87475 Wrought Aluminum Alloy.   AA Alclad 7475  
  Clad with Wrought Aluminum      
  Alloy. Heat Treatable      
         
         
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