quenched and tempered high-k8凯发官网
quenched and tempered high-strength structural steel plate (90-120kg grade)
1 the main purpose
this product is a high-strength steel with a yield strength of 800, 890, 960, 1030mpa quenched and tempered. it can be used in mining and various types of engineering construction equipment, such as drilling rigs, electric shovel, electric wheel dump trucks, excavators, loading. machines, bulldozers, concrete pump trucks, fire ladders, all kinds of cranes and coal mine hydraulic supports.
2 rades and standards
q800c/d/e |
标准：gb/t16270-2009《高强度结构用调质钢板》
|
q890c/d/e | |
q960c/d/e | |
jg1200d | 标准：q/3700lys 299－2010《工程机械用超高强韧结构钢板》 |
3 technical conditions of supply
3.1 product specifications
8～50×2200～3800×6000～12000mm
3.2 chemical composition
chemical composition
牌号/ steel grade | c | si | mn | p | s | 其它微合金等
| cev，% |
q800c/d/e | ≤0.20 | ≤0.80 | ≤2.00 | ≤0.020 | ≤0.010 | 适量/ adding | ≤0.72 |
q890c/d/e | ≤0.72 | ||||||
q960c/d/e | ≤0.82 | ||||||
jg1200d | ≤0.31 | ≤0.80 | ≤2.10 | ≤0.025 | ≤0.015 | / |
3.3 力学性能
力学性能
牌号 | 规格 mm | 屈服强度/ mpa | 抗拉强度/ mpa | 延伸率 a，% | 夏比冲击试验，纵向
| |
试验温度 ℃ | kv2 ，j | |||||
q800c/d/e | ≤50 | ≥800 | 840～1000 | ≥13 | (c ）0 （d ）-20 （e ）-40 | ≥34 ≥34 ≥27 |
q890c/d/e | ≤50 | ≥890 | 940～1100 | ≥11 | ||
q960c/d/e | ≤50 | ≥960 | 980～1150 | ≥10 | ||
jg1200d | ＜10 | ≥1030 | 1200～1400 | a50≥10 | -20 | ≥27 |
≥10～≤40 | 1130～1400 | |||||