金属材料处理代号.pdf

金属材料处理代号说明 1、For EN materials, the treatment conditions are separated from the material number and code by a plus sign(+) 对于EN材料，处理状态是根据材料编号来区分的，并标以（+）号 2、As the system of annexed numbers no longer exists, the treatment condition of the remaining DIN materials are annexing the old letters, without separating them by plus signs,e.g.from 1.7707.05 to 1.7707 V 因为附属数字表不再存在，保留的DIN材料的处理状态仍标以以前的字母代号，并没有用特殊符号加以区分，比如 从1.7707.05到1.7707 V 3、Letter annexed general/一般附属字母代码 old/旧代号 new/新代号 meaning/处理方法 A +T Tempered/回火处理 AH +QA Air-hardened/空冷硬化 BK +C Tube:bright drawn hard/管道：光亮冷拔硬化 BKS +SR Tube:bright drawn and stress annealed/管道：光亮冷拔及去压力退火 BKW +LC Tube:bright drawn soft/管道：光亮冷拔软化 seamless steel tubes:Hot worked,heat treated,descaled- C2 +HFD metallically clean 无缝钢管：高温处理，热处理，除金属氧化皮 G +A Soft-annealed/软化退火 GAL SN +SE electrolytic tin-plated/镀锡 GAL ZN +ZE Cold galvanised/冷镀 GBK +A Tube:soft annealed/管道：软化退火 GKZ +AC Spheroidised/球化处理 seamless steel tubes:cold warked,heat treated,descaled- H +CFD metallically clean 无缝钢管：冷作处理，热处理，除去金属氧化皮 K +C Cold-work hardened(drawn)for bars/钢棒冷作（拉）硬化 K +NS Strength class for wire for springs/弹簧钢丝强度等级 K+A +HAT Strength class for wire for springs/弹簧钢丝强度等级 K+V +QT+C Cold-drawn, quenched and tempered/冷拔，淬火及回火 N +N Normalised(annealed or rolled