GB/T 30829

GB/T 30829 (石油井架用异型及圆形无缝钢管)· GB (中国) · 16 种材料

名称	材料组别
J20CrMo Grade I	结构钢	chevron_right
J20CrMo Grade II	结构钢	chevron_right
JQ245 Grade B	结构钢	chevron_right
JQ245 Grade C	结构钢	chevron_right
JQ245 Grade D	结构钢	chevron_right
JQ245 Grade E	结构钢	chevron_right
JQ345 Grade B	结构钢	chevron_right
JQ345 Grade C	结构钢	chevron_right
JQ345 Grade D	结构钢	chevron_right
JQ345 Grade E	结构钢	chevron_right
JQ450 Grade C	结构钢	chevron_right
JQ450 Grade D	结构钢	chevron_right
JQ450 Grade E	结构钢	chevron_right
JQ500 Grade C	结构钢	chevron_right
JQ500 Grade D	结构钢	chevron_right
JQ500 Grade E	结构钢	chevron_right