Alloy ASME SA335-P11,ASME SA335-P12.ASME SA335-P91.

Hebei Yihai Pipeline Co., Ltd. produces DN15-DN600 and 2mm-110mm wall thickness steel seamless elbow.

Material: Chinese GB5310 series: 20G,12GrMo,15GrMo,12Gr1MoV,10GrMo910;
              American ASME series: SA335-P11,P12,P22,P91;
              German DIN17175 series: ST45.8/III;
              Other materials. 
 
Usage: widely used in the field of thermal power, petroleum refining, chemical and other core parts of high temperature and high pressure.
Note: can be produced according to user's requirements.