Material of the compressed component
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Dear experts, could you please help check: 1. Does “boss” refer to a pipe fitting? 2. What does bspp prt fi40 mean after boss? 3. Are 18G2A and E355R two different materials? What domestic material is it similar to? 4. What do Flange 11 B1 and the last /3.6 mean? What domestic material is similar to its P245GH grade? 5. What domestic material is similar to the st35.8III material in terms of properties? 5. Which domestic material is similar to the S355 steel sheet? What does J2+N at the end mean?
This post was last edited by niat8888 on 2017-7-28 at 16:17. S: Structural steel; 355: Yield strength of 355 MPa; J2: Impact test at -20°C, with a value of over 27 J; N: Normalized treatment. It’s similar to Q345D, I guess
P: Steel for pressure applications; 245: yield strength of 245 MPa. GH: lol, I still don’t understand what that means. . . NB/T47008 similar to 20#