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 C GROUP : Copper and Copper Alloys - C16500~C37000
/tr>
UNS No
Description
ASTM Brand/Trp
ASTM Equivalent
UNS C16500 Cadmium Copper Alloy   ASTM B 9, ASTM B105
UNS C17000 Berylium Copper   ASTM B194, ASTM B196, ASTM B570
UNS C17200 Berylium Copper   ASTM B194, ASTM B196, ASTM B197, ASTM B570
UNS C17300 Berylium Copper with Lead   ASTM B196
UNS C17400 Copper- Beryllium Alloy   ASTM B768
  Beryllium-Copper)    
UNS C17410 Copper-ASTM Beryllium Alloy   ASTM B768
  (eryllium-Copper)    
UNS C17420 Copper-eryllium Alloy   ASTM B768
  (Beryllium-Copper)    
UNS C17500 Berylium Copper   ASTM B441, ASTM B534
UNS C17510 Copper-Beryllium Alloy   ASTM B441, ASTM B534
UNS C18200 Chromium Copper   F9
UNS C18700 Leaded Copper   ASTM B301
UNS C19200 High Copper Alloy   ASTM B111, ASTM B359, ASTM B395, ASTM B465, ASTM B469, ASTM B585,
      ASTM B638, ASTM B640
UNS C19400 High Copper Alloy   ASTM B465, ASTM B543, ASTM B586, ASTM B638, ASTM B640, ASTM B394,
UNS C19600 High Copper Alloy   ASTM B465
UNS C21000 Gilding 95% (Copper /Zine)   ASTM B36, ASTM B134, ASTM B587
UNS C22000 Commercial ASTM Bronze, 90%   ASTM B36, ASTM B130, ASTM B131, ASTM B134, ASTM B135, ASTM B372,
      ASTM B587
UNS C23000 Red Brass, 85%   ASTM B36, ASTM B43, ASTM B111, ASTM B134, ASTM B135, ASTM B359,
      ASTM B395, ASTM B543, ASTM B587, ASTM B687
UNS C24000 Low Brass, 80%   ASTM B36, ASTM B134
UNS C26000 Cartidge Brass, 70%   ASTM B19, ASTM B36, ASTM B129, ASTM B134, ASTM B135, ASTM B569, ASTM B587
UNS C26800 Yellow Brass, 66%   ASTM B36, ASTM B587
UNS C27200 Yellow Brass, 65%   ASTM B134, ASTM B135, ASTM B587, F467, F468
UNS C27000 Brass   ASTM B36, ASTM B135, ASTM B587
UNS C27400 Yellow Brass, 63%   ASTM B134,
UNS C28000 Muntz Metal, 60%   ASTM B111, ASTM B135
UNS C31400 Leaded Commercial Bronze   ASTM B140
UNS C31600 Leaded Commercial Bronze   ASTM B140
  (Nickel Bearing)    
UNS C32000 Leaded Red Brass   ASTM B140
UNS C33000 Low Leaded Brass (TuBe)   ASTM B135
UNS C33500 Low Leaded ASTM Brass   ASTM B121, ASTM B453
UNS C34000 Medium Leaded Brass, 64-1/2%   ASTM B121, ASTM B453
UNS C34200 High Leaded Brass, 64-1/2%   ASTM B121
UNS C34500 Leaded Brass   ASTM B453
UNS C35000 Medium Leaded Brass, 62%   ASTM B121, ASTM B453
UNS C35300 High Leaded Brass, 62%   ASTM B121, ASTM B453
UNS C35600 Leaded Brass Alloy   ASTM B121
UNS C36000 Free Cutting Brass   ASTM B16
UNS C36500 Leaded Muntz Metal.   ASTM B171, ASTM B432
  UninhiASTM Bited (Cu-Zn-PASTM B)    
UNS C36600 Leaded Muntz Metal.   ASTM B171, ASTM B432
  Arsenical (Cu-Zn-PASTM B)    
UNS C36700 Leaded Muntz Metal.   ASTM B171, ASTM B432
  Antimonial (Cu-Zn-PASTM B)    
UNS C36800 Leaded Muntz Metal.   ASTM B171, ASTM B432
  Phosphorized (Cu-Zn-PASTM B)    
UNS C37000 Free Cutting Muntz Metal   ASTM B135
  (Cu-Zn-PASTM B)    
       
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