什么是SA203GrD钢?
ASME SA203 steel is a nickel alloy steel plate for pressure vessel, including A, B, D, E, F five grades (SA203GrA, SA203GrB, SA203GrC, SA203GrD, SA203GrE, SA203GrF) .
SA203GrD steel has good impact toughness and mechanical properties under low temperature working conditions, and are usually used in low temperature environments of -70 ～ -101 ℃ (the tempered state can reach -107 ℃). SA203GrD nickel alloy steel is widely used in the manufacture of equipment in cryogenic separation processing, air separation, and liquefied gas storage fields. In recent years, CO2 absorption towers, H2S concentration towers, washing towers and other low-temperature equipment in domestic coal chemical projects have been made of such materials. SA203GrD steel plate is generally delivered in normalized, normalized and tempered or tempered condition.
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