ACI-ASTM CB-6钢是一种用于铸造的马氏体不锈钢，通常需要热处理（HT）后使用。在铸造马氏体不锈钢中具有适度的延展性。此外，它具有适度高PREN和适度高的体现能量。

ACI-ASTM CB6 steel is a martensitic stainless steel formulated for casting. It is typically furnished in the heat treated (HT) condition. CB6 is the designation in both the ACI and ASTM systems for this material. J91804 is the UNS number.

It has a moderately high ductility among cast martensitic stainless steels. In addition, it has a moderately high PREN and a moderately high embodied energy.

The graph bars on the material properties cards below compare ACI-ASTM CB6 steel to: cast martensitic stainless steels (top), all iron alloys (middle), and the entire database (bottom).

CB-6不锈钢标准：UNS J91804

CB-6不锈钢化学成分（%）：

C: ≤0.06;

Fe: 74.4~81.0;

Cr: 15.5~17.5;

Ni: 3.5~5.5;

Mn: ≤1.0;

Si: ≤1.0;

Mo: ≤0.5;

P: ≤0.04;

S: ≤0.03.

CB-6不锈钢力学性能：

抗拉强度：880MPa;

屈服强度：660MPa;

疲劳强度：410MPa;

杨氏模量：200GPa;

剪切模量：77GPa;

伸长率：18%;

断面收缩率：40%;

泊松比：0.28.