International Standard Comparative

British Standards Institution :: Unified Numbering Systems for Metals and Alloys

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BSI Group, also known in its home market as the British Standards Institution (or BSI), is a multinational business services provider whose principal activity is the production of standards and the supply of standards-related services. BSI produces British Standards, and, as the UK’s National Standards Body, is also responsible for the UK publication, in English, of international and European standards. The Group now operates internationally in 150 countries.


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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.

Comparative Table21

Councils

B/- Council for Building and Civil Engineering C/- Chemical and Health Council
E/- Engineering Council L/- British Electrotechnical Committee and Electrotechnical Council
M/- Multitechnics Council S/- Systems : Management And Environment T/- Disc
 
BS No.&title BS Grade UNS&etc Spec   BS No.&title BS Grade UNS&etc Spec
BS4659
(continued)
BT5   BS6323 Part 5
(continued)
for electric resistance welded (including induction welded) steel tubes
ERW3  
BT6   ERW5  
BT15 T12015    
BT21      
BT42      
BW2 T72302    
BS6323
Spec. for seamless and welded steel tubes for automobile, mechanical and general engineering purposes
    Part 6
Specific requirements for cold finished electric resistance welded(including induction welded)steel tubes
CEW3  
    CEW4  
    CEW5  
       
       
       
       
Part 1
General requirements

CFS10

  Part 7
Specific requirements for submerged arc welded steel tubes
SAW4  
CFS11   SAW5  
HFW2      
HFW4      
Part 2
Spec. requirements for hot finished welded steel tubes
HFW2      
HFW3   Part 8
Specific requirement for longitudinally welded stainless steel tubes
LW13  
HFW4   LW17  
HFW5   LW18  
    LWCF13  
Part 3
Specific requirements for hot finished seamless steel tubes
HFS3   LWCF17  
HFS4   LWCF18  
HFS5   BS6681
Spec. for malleable cast iron
B30-06  
    B32-10  
Part 4
Specific requirements for hot finished seamless steel tubes
CFS3   B35-12  
CFS5   P45-06  
CFS6   P50-05  
CFS8   P55-04  
CFS10   P60-03  
CFS11   P65-02  
Part 5
Specific requirements
    P70-02  
ERW1   W35-04  
      W38-12  
      W40-05  
      W45-07  
           
           


Note:1.

① ASTM ② ANSI/SAE/AWS ③ JIS ④ UNS
⑤ BS ⑥ AFNOR ⑦ SS ⑧ Maker Brand


 
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