| 代号 | API 代号 |
| C14A-15(XX) | C14-15 |
| C14A-20-125(XX) | C14-20-125 |
| C14A-20(XX) | C14-20 |
| C14A-25(XX) | C14-25 |
| C14A-30(XX) | C14-30 |
| C14A-40(XX) | — |
注:①XX为材料标识代号;
②内表面硬质合金堆焊用于阀球导向,硬度35HRC~45HRC,单边厚度0.050in~0.125in(1.27mm~3.175mm);
③与硬质合金阀球搭配,可以起到保护阀罩的作用。
| 代号 | API 代号 |
| C14A-15(XX) | C14-15 |
| C14A-20-125(XX) | C14-20-125 |
| C14A-20(XX) | C14-20 |
| C14A-25(XX) | C14-25 |
| C14A-30(XX) | C14-30 |
| C14A-40(XX) | — |
注:①XX为材料标识代号;
②内表面硬质合金堆焊用于阀球导向,硬度35HRC~45HRC,单边厚度0.050in~0.125in(1.27mm~3.175mm);
③与硬质合金阀球搭配,可以起到保护阀罩的作用。