A291/A291M

A291/A291M (减速器小齿轮、齿轮和心轴用碳素钢和合金钢锻件的标准规范)· ASTM (美国) · 10 种材料

名称	材料组别
A 291 Grade 1 Class A	结构钢	chevron_right
A 291 Grade 2 Class B	结构钢	chevron_right
A 291 Grade 3 Class C	结构钢	chevron_right
A 291 Grade 3A Class D	结构钢	chevron_right
A 291 Grade 4 Class E	结构钢	chevron_right
A 291 Grade 5 Class F	结构钢	chevron_right
A 291 Grade 6 Class G	结构钢	chevron_right
A 291 Grade 7 Class H	结构钢	chevron_right
A 291 Grade 8 Class I	结构钢	chevron_right
A 291 Grade 9 Class J	结构钢	chevron_right