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 - C37700~C65100
UNS No
Description
ASTM Brand/Trp
ASTM Equivalent
UNS C37700 Forging Brass   ASTM B124,ASTM B83
UNS C38000 Leaded Brass   ASTM B455
UNS C38500 Architectural Bronze   ASTM B455
UNS C40500 Tin Brass   ASTM B591
UNS C40800 Tin Brass   ASTM B591
UNS C41100 Tin Brass   ASTM B105, ASTM B508, ASTM B591
UNS C41300 Tin Brass   ASTM B591
UNS C41500 Tin Brass   ASTM B591
UNS C42200 Tin Brass   ASTM B591
UNS C42500 Tin Brass   ASTM B591
UNS C43000 Tin Brass   ASTM B591
UNS C43400 Tin Brass   ASTM B591
UNS C44300 Admiralty. Arsenical (Cu-Zn-Sn)   ASTM B111, ASTM B171, ASTM B359, ASTM B395, ASTM B432, ASTM B543
UNS C44400 Admiralty. Arsenical (Cu-Zn-Sn)   ASTM B111, ASTM B171, ASTM B359, ASTM B395, ASTM B432, ASTM B543
UNS C44500 Admiralty. Phosphorized   ASTM B111, ASTM B171, ASTM B359, ASTM B395, ASTM B432, ASTM B543
  (Cu-Zn-Sn)    
UNS C46200 Naval Brass 63-1/2%   ASTM B21, F68, F467, F468
UNS C46400 Naval Brass Uninhibited   ASTM B21, ASTM B124, ASTM B171, ASTM B283, ASTM B432, F467,
      F468
UNS C46500 Naval Brass Arsenical   ASTM B171, ASTM B432
UNS C46600 Naval Brass Antimonia   ASTM B171, ASTM B432
UNS C46700 Naval Brass Phosphorzed   ASTM B171, ASTM B432
UNS C47940 Brass Alloy   ASTM B21
UNS C48200 Naval Brass Medium Leaded   ASTM B21, ASTM B124, ASTM B283
UNS C48500 Naval Brass High Leaded   ASTM B21, ASTM B124, ASTM B283
UNS C50100 Phosphor Bronze   ASTM B105
UNS C50200 Phosphor Bronze   ASTM B105
UNS C50500 Phosphor Bronze. 1.25% E   ASTM B9, ASTM B105, ASTM B508
UNS C50700 Phosphor Bronze   ASTM B105
UNS C50800 Phosphor Bronze   ASTM B105
UNS C51000 Phosphor Bronze 5% A   ASTM B100, ASTM B103, ASTM B139, ASTM B159
UNS C51100 Phosphor Bronze   ASTM B100, ASTM B103
UNS C52100 Phosphor Bronze 8%   ASTM B103, ASTM B139, ASTM B159
UNS C52400 Phosphor Bronze 10% D   ASTM B103, ASTM B139, ASTM B159
UNS C53200 Phosphor Bronze B   ASTM B103
UNS C53400 Phosphor Bronze B-1   ASTM B103, ASTM B139
UNS C54400 Phosphor Bronze B-2   ASTM B103, ASTM B139
UNS C60700 Aluminum Bronze   ASTM B105
UNS C60800 Aluminum Bronze   ASTM B111, ASTM B359, ASTM B395
UNS C61300 Aluminum Bronze   ASTM B169, ASTM B171, ASTM B315, ASTM B432, ASTM B608
UNS C61400 Aluminum Bronze D   ASTM B150, ASTM B169, ASTM B171, ASTM B315, ASTM B432, ASTM B608,
      ASTM B467, F468
UNS C61900 Aluminum Bronze   ASTM B124, ASTM B150, ASTM B283
UNS C62300 Aluminum Bronze   ASTM B124, ASTM B150, ASTM B283
UNS C62400 Aluminum Bronze   ASTM B150
UNS C63000 Aluminum Bronze   ASTM B124, ASTM B150, ASTM B171, ASTM B283,F467, F468
UNS C63200 Aluminum Bronze   ASTM B150
UNS C64200 Aluminum Bronze   ASTM B124(642), ASTM B150(642), ASTM B283(642),
      F467,F468
UNS C64210 Aluminum Bronze   ASTM B124, ASTM B283
UNS C64700 Silicon Bronze   ASTM B411, ASTM B412
UNS C65100 Low Silicon Bronze B   ASTM B98, ASTM B99, ASTM B105, ASTM B315, ASTM B432, F467,
      ASTM B468
       
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