96、钢材与钢丝绳技术指标及规范详解

钢材与钢丝绳技术指标及规范详解

1. 钢材化学要求

1.1 不同等级钢材化学元素要求

不同等级的钢材，如 HPS 345W [HPS 50W]、HPS 485W [HPS 70W] 和 HPS 690W [HPS 100W]，对化学元素的含量有着不同的要求。具体如下表所示：
|元素|Grades HPS 345W [HPS 50W] 和 HPS 485W [HPS 70W]|Grade HPS 690W [HPS 100W]|
| ---- | ---- | ---- |
|Carbon|0.11 max|0.08 max|
|Manganese（65 mm [2.5 in.] 及以下）|1.10–1.35|0.95–1.50|
|Manganese（超过 65 mm [2.5 in.]）|1.10–1.50|0.95–1.50|
|Phosphorus|0.020 max|0.015 max|
|Sulfur|0.006 max|0.006 max|
|Silicon|0.30–0.50|0.15–0.35|
|Copper|0.25–0.40|0.90–1.20|
|Nickel|0.25–0.40|0.65–0.90|
|Chromium|0.45–0.70|0.40–0.65|
|Molybdenum|0.02–0.08|0.40–0.65|
|Vanadium|0.04–0.08|0.04–0.08|
|Columbium (Niobium)|—|0.01–0.03|
|Aluminum|0.010–0.040|0.020–0.050|