Long radius 90 degree elbow
LR 90 degree steel pipe elbow are installed between different lengths pipe or tubing. It helps to change direction at 90 degree, and is commonly used to connect hoses to pumps, deck drains and valve.
Short radius 90 degree elbow
SR 90 degree elbow is the same as the pipe elbow mentioned above, but the diameter is shorter. Therefore, this kind of steel elbow is often used when space is not enough.
Butt weld elbow is a steel elbow formed by hot pressing or forging. Its connection form is to directly weld the elbow and steel pipe. Butt welded elbows are mainly used for elbow with higher pressure and temperature than other connection types (socket welded elbow or threaded pipe elbow).
American standard:
ASTM A234/A234M | WPB/ WPC/ WP11/ WP12/ WP22/ WP5/ WP9/ WP91/ WP92 etc... |
ASTM A404/A403M | WP304/ WP304L/ WP316/ WP316L/ WP310/ WP321 etc... |
ASTM A420/A420M | WPL6/ WPL3/ WPL9 etc... |
ASTM A815/A815M | WPS31803/ WPS32750/ WPS32706/ WPS32205 etc.. |
ASTM B366/B366M | UNS NO6625/ UNS NO8020/ UNS8028 etc.. |
ASTM A860/A860M | WPHY42/ WPHY46/ WPHY52/ WPHY60/ WPHY65/ WPHY70 etc.. |
European , German , Russian and Japanese standard:
EN10253-2 | P235TR2/ P265TR2/ P235GH/ P265GH/ 16Mo3/ 10CrMo5-5/ 13CrMo4-5/ 10CrMo9-10/ X11CrMo5/ X10CrMoVNb9-1 etc... |
EN10253-4 | 1.4307/ 1.4306/ 1.4301/ 1.4541/ 1.4404/ 1.4401/ 1.4539/ 1.4547/ 1.4529 etc.. |
GOST | CT20/ 15XM/ 35XM/ 12X1MD/ 08X18H10/ 08X18H10T/ 08X17H13M2T etc.. |
JIS G 3454 | STPG370/ STPG410 etc.. |
JIS G 3456 | STPT370/ STPT410/ STPT480 etc.. |
JIS G 3459 | SUS304/ SUS316/ SUS304L/ SUS316L/ SUS310/ SUS321 etc... |
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