High-pressure seamless steel pipe implementation standards

High pressure boiler tubes  20G 
to ASTM SA106B / C 
to ASTM SA210A / C 
ST45.8-III GB5310-2008 
to ASTM SA106 
to ASTM SA210 
DIN17175-79 ∮8-1240 * 1-200 for the manufacture of high-pressure boiler heating tubes, headers, steam pipes and other 
low pressure in the boiler seamless steel pipe (GB3087-2008) for the manufacture of various structural low-pressure boiler tubes superheated steam, boiling water pipes and superheated steam locomotive boiler tubes and high arch bricks and cold rolled carbon steel Pull (roll) seamless steel pipe. High-pressure boiler seamless steel pipe (GB5310-2008) is a high-quality carbon steel, alloy steel and stainless steel heat-resistant steel seamless pipe for the heating surface of water tube boilers for high pressure and above.