International Standard Comparative

BSI No. :: UNS No.

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


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.


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 Table2


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
BS970 Part 1

BS 970 Part 1

070M20 G10200②1020 170H20 ④1.5523
070M26 G10250②1025 170H36  
070M55 G10550②1055 170H41 ④1.5527
080A15 G10150②1015 173H16  
080A20   174H20  
080A30 G10300②1030 175H23  
080A32 G10350②1035 175H40  
080A35 G10350②1035 210A15 ④1.0723
080A37 G10380②1038 210M15 ④1.0723
080A40 G10400②1040 212A37  
080A42 G10430②1043 212A42  
080A47   214A15  
G10500②1050 214M15  
080A57 G10600②1060 216A42  
080A67   216M28  
080A36   216M36
080A41   216M44  
080A46   220M07 G12120④1.0711
080A15 G10150②1015 225M36  
080A30   226M44 G11440
080A36 G10350②1035 230M07 ④1.0715
080A40 G10400②1040 280M01 ④1.1198
080A46   302S31  
080A50 G10490②1049 303S31  
120M19 G10220②1022 303S42  
120M28   304S11 ④1.4306
120M36 ③SMn433 304S15 ④1.4301
125A15   304S31 ④1.4301
130M15   310S31  
G15410②1541 316S11 ④1.4404
150M19 G15220②1522 316S13  
150M28 G13300②1330 316S31 ④1.4401
150M36 G15410②1541 316S33 ④1.4401
150M40   320S31 ④1.4571


⑤ BS ⑥ AFNOR ⑦ SS ⑧ Maker Brand

Register as a member of e-pipe Registration your Company Information.

Any more you don't have to wait Marketing Result.
Using our companies information management database - Open e'market. and Advertising,Operating activities.
With e-pipe, Make a New Business.