17-4PH见的多的是圆钢，如果是0Cr17Ni4Cu4Nb钢板，那你上宝山的高高来看一看。马氏体的不锈钢具有高强度、硬度和抗腐蚀等特性。01Х18М2Т（ЧС77） 01Х18М2Т-ВИ;01X18米2T;01X18M2T-VI型;ChS77型;CHS77-VI系列 01Х18М2Т (ЧС77)  сталь 01Х18М2Т-ВИ; 01Х18М2Т; 01Х18М2Т-ВИ; ЧС77; ЧС77-ВИ 用于：用于制造石化设备换热器中的管道;耐生产烧碱、含氯介质的设备部件，工作温度不超过+300°C的炼油和纸浆工业设备;焊丝。如果你需要小批量的复杂合金钢，如果没有人生产您要的钢，您搜《高高兴晟》。If you need a small batch of complex alloy steel, if no one produces the steel you need.

高锰低磁钢唯一执行军工标准的牌号就是45Mn17Al3，代号917低磁钢。可按标准轧917钢板，薄板，型钢，螺纹以及钢管。上海高高特钢集团694992782@qq.com   ,WhatsApp:86 1891707807945Mn17Al3 low magnetic steel is a high alloy single phase austenitic manganese steel. It has good plasticity, high toughness, large work-hardening tendency, large thermal expansion coefficient, high resistivity, low thermal conductivity and low magnetic properties. It is widely used in non-magnetic buildings, non-magnetic machinery, mineral processing and prospecting equipment, military and other fields.Non-magnetic steel 917, grade 45Mn17Al3, is also classified into - 1 and - 2 grades. The carbon content of 917-2 is slightly higher than that of 917-1 low magnetic steel, and the yield is also higher. The parts used are specific to the geomagnetic forgings of the ship shaft with a diameter greater than 100. As an economical low magnetic structural steel, 45Mn17Al3 is mainly used to prevent low magnetic components and projects that produce various electromagnetic interference, such as shipbuilding industry and low magnetic construction engineering.