95 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
100 ● ● ● ● ● ● ◆ ● ● ● ● ● ● ● ● ● ● ● ● ● ●
102 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
外径 壁厚
1.0 1.2 1.4 1.5 1.6 2.0 2.2 2.5 2.8 3.0 3.2 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10 11 12 13 14 15
108 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
114 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
127 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
133 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
140 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
146 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
159 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
140 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
146 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
159 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
注：
1.●表示冷拔(轧)钢管规格。
2.钢管的通常长度规定如下：
热轧（挤、扩）钢管………………………………………………2-12m
冷拔(轧)钢管………………………………………………………1—8m
3.钢管的弯曲度不得大于如下规定：
壁厚<15mm……………………………………………………?…1.5mm／m
壁厚≥15mm……………………………………?…………………2.0mm／m
热扩管………………………………………………………………3.0mm／m
(3)牌号和化学成分
结构用不锈钢无缝钢管的牌号和化学成分
组织
类型 序号 牌 号 化学成分(质量分数)(％)
C Si Mn P S Ni C Mo 其 他
奥氏
体型 1 0Cr18Ni9 ≤0.07 ≤1.00 ≤2.00 ≤0.035 ≤0.030 8.00-11.00 17.00-19.00
2 1Cr18Ni9 ≤0.15 ≤1.00 ≤2.00 ≤0.035 ≤0.030 8.00-10.00 17.00-19.00
3 00Cr19Ni10 ≤0.030 ≤1.00 ≤2.00 ≤0.035 ≤0.030 8.00-12.00 18
