12Cr1MoVG steel pipe is a Cr-Mo-V low alloy heat-resistant steel imported from the former Soviet Union in the 1950s and 1960s. Vanadium is an element that reduces the y-phase region. When it is dissolved in y-fe, the transformation of 12Cr1MoVG steel pipe

However, in recent years improvements in the manufacturing process for welded steel pipe and other DIN 1630 ST44.4 seamless pipe have boosted the strength and performance of the weld seam to levels indistinguishable from that of the rest of the pipe.

SA-210C steel pipe is ASME standard steel grade. It is medium carbon manganese steel pipe for boilers, superheaters and pipelines, and pearlitic heat-strength steel. my country transplanted it to GB5310 in 1995 and named it 25MnG, but the content range of

Sulfuric acid is very corrosive, so if the transportation medium of the chemical pipeline is sulfuric acid, it is necessary to scientifically select the 20Cr seamless steel pipe. In general, for concentrated sulfuric acid between 95% and 98%, the temperat