21Cr12MoV

21Cr12MoV為鉻鉬釩(fan)馬(ma)氏(shi)體耐(nai)熱鋼，有較高的熱密(mi)度，正常(chang)的減振性及組織結構穩(wen)確定高性。

21Cr12MoV相對應的型(xing)號(hao)： 1、國際規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)GB-T規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)：數字6型(xing)號(hao)：S46020、新型(xing)號(hao)：21Cr12MoV、舊型(xing)號(hao)：2Cr12MoV2、美標(biao)：ASTMA規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)：-，SAE規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)：-，UNS規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)：-，3、日標(biao)JIS規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)：-，4、德標(biao)DIN規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)：-,5、國標(biao)EN規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)規(gui)(gui)(gui)(gui)(gui)(gui)范(fan)(fan)(fan)(fan)(fan)(fan)：-。

21Cr12MoV化學工業成份：⑴碳C：0.18~0.24，⑵硅Si：0.10~0.50，⑶錳Mn：0.30~0.80，⑷磷(lin)P：≤0.030，⑸硫S：≤0.025，⑹鉻Cr：11.00～12.50 ，⑺鎳Ni：0.30~0.60，⑻鉬Mo：0.80~1.20，⑼氮N：—，⑽銅Cu：≤0.3，⑾各種因(yin)素(su)：V:0.25~0.35。

21Cr12MoV數學性能指(zhi)標： "①體積孔(kong)隙率體積孔(kong)隙率(20℃)

/kg/dm3:7.7,②沸點(dian)/℃: —,③比熱容(rong)(0~100℃)/kg/(kg.k): -,④熱導率(lv)/w/(m.k)

100℃-:-,⑸熱(re)導率/w/(m.k)

500℃-:

-,⑥線脹數值

/(10-6/k)

0~100℃:10.9,⑦線脹(zhang)指數公(gong)式/(10-6/k)

0~612℃:

12.2,⑧功率電阻(zu)率（20℃）

/（Ω.mm2/m):-,⑨縱向設計應力松弛模量

（20℃）/GPa:-，⑩磁(ci)性:-。

21Cr12MoV結構力(li)學安全性能: ⑴提貨(huo)的情形：棒材固溶(rong)處置(zhi)，鋼板固溶(rong)酸洗工藝，⑵抗拉(la)能力(li)剛度（RM/MPa）：-，⑶提升剛度（Rp0.2/MPa）：-，⑷長度率A/%：-，⑸截面縮緊率（Z/%）：-。

21Cr12MoV熱(re)外理：，①氏抗拉強(qiang)度(du)HBW≤：-，氏抗拉強(qiang)度(du)HRB≤：-，②加(jia)熱(re)室溫(wen)：-，③加(jia)熱(re)形式：-。

21Cr12MoV選用業務領(ling)域(yu)：用以做透平葉(xie)子(zi)(zi)及科(ke)研開發(fa)葉(xie)子(zi)(zi)。