International Standard Comparative

AISI and SAE No. :: UNS No.
American Iron and Steel Institute :: Unified Numbering Systems for Metals and Alloys

AISI serves as the voice of the North American steel industry in the public policy arena and advances the case for steel in the marketplace as the preferred material of choice. AISI also plays a lead role in the development and application of new steels and steelmaking technology. AISI is comprised of 21 member companies, including integrated and electric furnace steelmakers, and approximately 125 associate members who are suppliers to or customers of the steel industry.

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.

AISI & SAE No.UNS No.AISI & SAE No.UNS No.AISI & SAE No.UNS No.
AISI12L13UNS G21134AISI316UNS S31600AISI1021UNS G10210
AISI12L14UNS G12144AISI316FUNS S31620AISI1022UNS G10220
AISI15B21HUNS G15211AISI316LUNS S31603AISI1023UNS G10530
AISI15B35HUNS G15351AISI316NUNS S31651AISI1024UNS G10240
AISI15B37HUNS G15371AISI317UNS S31700AISI1025UNS G10250
AISI15B41HUNS G15411AISI317LUNS S31703AISI1026UNS G10260
AISI15B48HUNS G15481AISI321UNS S32100AISI1027UNS G15270
AISI15B62HUNS G15621AISI329UNS S32900AISI1029UNS G10290
AISI50B40UNS G50401AISI347UNS S34700AISI1030UNS G10300
AISI50B40HUNS H50401AISI348UNS S34800AISI1033UNS G10330
AISII50B44UNS G50441AISI384UNS S38400AISI1034UNS G10340
AISI50B44HUNS H50441AISI385UNS S38500 obAISI1035UNS G10350
AISI50B46UNS G50461AISI1036UNS G15360
AISI50B46HUNS H50461AISI403UNS S40300AISI1037UNS G10370
AISI50B50UNS G50501AISI405UNS S40500AISI1038UNS G10380
AISI50B50HUNS H50501AISI409UNS S40900AISI1038HUNS H10380
AISI50B60UNS G50601AISI410UNS S41000AISI1039UNS G10390
AISI50B60HUNS H50601AISI414UNS S41400
AISI51B60UNS G51601AISI416UNS S41600AISI1040UNS G10400
AISI51B60HUNS H51601AISI416 SeUNS S41623AISI1041UNS G15410
AISI420UNS S42000AISI1042UNS G10420
AISI81B45UNS G81451AISI420FUNS S42020AISI1043UNS G10430
AISI81B45HUNS H81451AISI422UNS S42200AISI1044UNS G10440
AISI86B30HUNS G86301AISI429UNS S42900AISI1045UNS G10450
AISI86B45UNS H86451AISI430UNS S43000AISI1045HH10460
AISI86B45HUNS G86451AISI430 FUNS S43020AISI1046UNS G10460
AISI94B15UNS G94151AISI430F SeUNS S43100AISI1048UNS G15480
AISI94B15HUNS H94151AISI431UNS S43400AISI1049UNS G10490
AISI94B17UNS G94171AISI434UNS S43600AISI1050UNS G10500
AISI94B17HUNS H94171AISI436UNS S43600AISI1051UNS G15510
AISI94B30UNS G94301AISI439UNS S43035AISI1052UNS G15520
AISI94B30HUNS H94301AISI440AUNS S44002AISI1053UNS G10530
AISI94B40UNS G94401AISI440BUNS S44003AISI1055UNS G10550
AISI440CUNS S44004AISI1059UNS G10590
AISI201UNS UNS S20100AISI442UNS S44200
AISI202UNS UNS S20200AISI446UNS S44600AISI1060UNS G10600
AISI205UNS UNS S20500AISI1061UNS G15610
AISI301UNS UNS S30100AISI501UNS S50100AISI1064UNS G10640
AISI302UNS S30200AISI502UNS S50200AISI1065UNS G15650
AISI302BUNS S30215AISI1005UNS G10050AISI1066UNS G15660
AISI303UNS S30300AISI1006UNS G10060AISI1069UNS G10690
AISI303SeUNS S30323AISI1008UNS G10080AISI1070UNS G10700
AISI304UNS S30400AISI1009UNS G10090AISI1072UNS G15720
AISI304LUNS S30403AISI1010UNS G10100 obAISI1074UNS G10740
AISI304NUNS S30451AISI1011UNS G10110AISI1075UNS G10750
AISI305UNS S30500AISI1012UNS G10120AISI1078UNS G10780
AISI308UNS S30800AISI1015UNS G10150AISI1080UNS G10800
AISI309UNS S30900AISI1016UNS G10160AISI1084UNS G10840
AISI309SUNS S30908AISI1017UNS G10170AISI1085UNS G10850
AISI310UNS S31000AISI1018UNS G10180AISI1086UNS G10860
AISI310SUNS S31008AISI1019UNS G10190AISI1090UNS G10900
AISI314UNS S31400AISI1020UNS G10200AISI1095UNS G10950

Get in Touch

Welcome to Sunny Steel Enterprise Ltd.

Sunny Steel provide a wide range of steel products as Steel pipes, Seamless tube and seamless pipes, Alloy pipes, Pipe fittings, Composite steel pipe used in the industry, construction etc.

You can get in touch by telephone, post, online or E-mail.

Please check the help section first to see if your question may be answered there.

Seamless steel pipe >>

Seamless steel pipe >>
Seamless steel pipe is alos called CDS pipes (Cold drawn seamless pipe).

Flanges General

Flanges General
A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system.

Weldable Components

Weldable Components
Weldable components are used to connect pipes that include elbow, tee, cross, reducer & bending.