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山东钢管厂结构用不锈钢无缝钢管（GB／T14975—1994）

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发布者：www.zj160.net 发布时间：2015/9/12 阅读：1833次【字体：大中小】

山东钢管厂结构用不锈钢无缝钢管（GB／T14975—1994）

(1)尺寸规格见表6-17、表6-18。
(2)允许偏差见表6-20。
(3)牌号和化学成分见表6-19。
(4)力学性能见表6-21。
(5)用途适于一般结构及机械结构用。
表6-17结构用不锈钢热轧(挤、扩)无缝钢管的尺寸规格(mm)
壁厚
外径 4.5 5 6 7 8 9 10 ll 12 13 14 15 16 17 18 19 20 22 24 25 26 28
68 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
70 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
73 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
76 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
80 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
83 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
89 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
95 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
102 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
108 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
114   ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
121   ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
127   ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
133   ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
140     ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
146     ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
152     ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
159     ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
168       ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
180         ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
194         ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
219         ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
245             ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
237                 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
325                 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
35l                 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
377                 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
426                 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

表6-18结构用不锈钢冷拔(轧)无缝钢管的尺寸规格   (mm)
壁厚
外径 1.O 1.2 1.4 1.5 1.6 2.0 2.2 2.5 2.8 3.O 3.2 3.5 4.O 4.5 5.O 5.5 6.O 6.5 7.0 7.5 8.0 8.5 9.0 9.5 lO ll 12 13 14 15
lO ● ● ● ● ● ● ● ●
11 ● ● ● ● ● ● ● ●
12 ● ● ● ● ● ● ● ● ● ●
13 ● ● ● ● ● ● ● ● ● ●
14 ● ● ● ● ● ● ● ● ● ● ● ●
15 ● ● ● ● ● ● ● ● ● ● ● ●
16 ● ● ● ● ● ● ● ● ● ● ● ● ●
17 ● ● ● ● ● ● ● ● ● ● ● ● ●
18 ● ● ● ● ● ● ● ● ● ● ● ● ● ●
19 ● ● ● ● ● ● ● ● ● ● ● ● ● ●
20 ● ● ● ● ● ● ● ● ● ● ● ● ● ●
2l ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
22 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
23 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
24 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
25 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

       壁厚
外径 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.O 5.5 6.0 6.5 7.O 7.5 8.O 8.5 9.O 9.5 lO 11 12 13 14 15
27 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
28 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
30 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
32 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
34 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
35 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
36 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
38 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
40 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
42 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
45 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
48 ● ● ◆ ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
50 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
51 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
53 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
54 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ◆ ● ● ● ● ● ● ● ● ●
56 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

壁厚
外径 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.O 5.5 6.0 6.5 7.O 7.5 8.O 8.5 9.O 9.5 lO 11 12 13 14 15
57 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
60 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
63       ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
65       ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
68       ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
70         ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
73               ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
75               ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
78               ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
80               ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
83               ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
85               ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
89               ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
90                   ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
95                   ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
100                   ● ● ● ● ● ● ◆ ● ● ● ● ● ● ● ● ● ● ● ● ● ●
102                       ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

     壁厚
外径 1.o 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.O 6.5 7.O 7.5 8.O 8.5 9.O 9.5 lO 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.Omm／m
表6-19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 OCr18Ni9 ≤0.07 ≤1.00 ≤2.00 ≤0.035 ≤0.030 8.00～11.00 17.00～19.00
2 lCrl8Ni9 ≤O.15 ≤1.00 ≤2.00 ≤O.035 ≤O.030 8.00～lO.00 17.00～19.00
3 00Crl9NilO ≤0.030 ≤1.00 ≤2.00 ≤0.035 ≤O.030 8.00～12.00 18.00～20.00
4 0Crl8Ni10Ti ≤0.08 ≤1.00 ≤2.O0 ≤O.035 ≤O.030 9.00～12.00 17.00～19.00   Ti≥5C％
5 OCrl8NillNb ≤O.08 ≤1.00 ≤2.00 ≤0.035 ≤0.030 9.00～13.00 17.00～19.00   Nb≥10C％
6 0Crl7Nil2M02 ≤0.08 ≤1.00 ≤2.00 ≤O.035 ≤O.030 10.00～14.00 16.00～18.50 2.00～3.00
7 00Crl7Nil4M02 ≤0.030 ≤1.00 ≤2.00 ≤O.035 ≤0.030 12.00～15.00 16.00～18.oo 2.00～3.00
8 OCrl8Nil2M02Ti ≤0.08 ≤1.00 ≤2.00 ≤0.035 ≤O.030 11.00～14.00 16.00～19.00 1.80～2.50 Ti 5C％～O.70
9 1Crl8Nil2M02Ti ≤O.12 ≤1.00 ≤2.00 ≤O.035 ≤O.030 11.00～14.00 16.00～19.00 1.80～2.50 Ti 5(C％-0.02)
～0.80
lO 0Crl8Nil2M03Ti ≤0.08 ≤1.00 ≤2.00 ≤O.035 ≤0.030 11.00～14.00 16.oo～19.00 2.50～3.50 Ti5C％～O.70
11 1Crl8Ni12Mo3Ti ≤O.12 ≤1.00 ≤2.00 ≤O.035 ≤0.030 11.00～14.00 16.00～19.00 2.50～3.50 Ti 5(C％-0.02)
～0.80
12 1Crl8Ni9Ti ≤0.12 ≤1.00 ≤2.00 ≤O.035 ≤0.030 8.00～11.00 17.00～19.oo   Ti 5(C％～O.02)
～0.80
13 0Cr19Nil3M03 ≤O.08 ≤1.00 ≤2.00 ≤0.035 ≤O.030 11.00～15.00 18.00～20.00 3.00～4.00
14 00Crl9Nil3M03 ≤0.030 ≤1.00 ≤2.00 ≤0.035 ≤O.030 11.00～15.00 18.00～20.00 3.00～4.00
铁素
体型
马氏
体型 15 OCrl3 ≤O.08 ≤0.60 ≤0.80 ≤0.035 ≤O.030   12.00～14.00
16 lCrl7 ≤O.12 ≤0.75 ≤1.00 ≤O.035 ≤0.D30   16.00～18.00
17 1Crl3 ≤O.15 ≤1.00 ≤1.00 ≤0.035 ≤0.030   11.50～13.50
18 2Crl3 O.16～0.25 ≤1.00 ≤1.00 ≤O.035 ≤O.030   12.00～14.00
注：*残余元素Ni≤O.60。

表6-20结构用不锈钢无缝钢管的尺寸允许偏差
热轧(挤、扩)钢管冷拔(轧)钢管
尺寸／mm 允许偏差／mm 尺寸／mm 允许偏差／mm
普通级较高级普通级较高级
外径D 68≤D≤159 ±1.25 ±l 外径D 10≤D≤30 ±O.30 土O.20
30 土O.40 ±O.30
159 ±1.5
D>5 ±O.9％ ±0.8％
壁厚 <15 +15
-12.5

±12.5

壁厚 ≤3 ±14％ +12％
-10％
≥15 +20
-15 >3 +12％
-10％ ±lO％

注：供机械加工用钢管应在合同中注明，根据需方要求，经供需双方协议，可规定机械加工余量。
表6-2l结构用不锈钢无缝钢管的力学性能
组织类型序号牌号推荐热处理制度力学性能密度(g／cm3)
ób／MPa ó0. 2／MPa δ5(％)
≥
奥氏体型 l OCr18Ni9 lOl0～1150℃，急冷 520 205 35 7.93
2 lCrl8Ni9 1010～1150℃，急冷 520 206 35 7.90
3 00Crl9Ni10 1010～1150℃，急冷 480 175 35 7.93
4 OCrl8Nil0Ti 920～1150℃，急冷 520 206 35 7.95
5 0Crl8NillNb 980～1150cC，急冷 520 205 35 7.98
6 OCrl7Nil2M02 1010～1150℃，急冷 520 205 35 7.98
7 00Cr17Nil4M02 1010～1150℃。急冷 480 175 35 7.98
8 OCr18Mil2M02Ti 1000～1100℃，急冷 530 205 35 8.00
9 lCrl8Nil2M02Ti 1000～1100℃，急冷 530 205 35 8.00
10 oCr18Nil2M03Ti 1000～1100℃，急冷 530 205 35 8.10
11 1Crl8Nil2M03Ti 1000～1100℃。急冷 530 205 35 8.10
12 1Cr18Ni9Ti 1000～1100℃，急冷 520 205 35 7.90
13 0Crl9Nil3M03 10lO～1150℃，急冷 520 205 35 7.98
14 00Crl9Ni13M03 lOlO～1150℃，急冷 480 175 35 7.98
铁索体型 15 OCrl3 780～830℃，空冷或缓冷 370 180 22 7.70
16 lCrl7 780～850℃，空冷或缓冷 410 245 20 7.70
马氏体型 17 lCrl3 800～900℃，缓冷 410 205 20 7.70
18 2Crl3 800～900℃，缓冷 470 215 19 7.70

注：1.热挤压管的抗拉强度允许降低20MPa。
2.钢管经热处理并酸洗交货。凡经整体磨、镗或经保护气氛热处理的钢管，可不经酸洗交货。
3.供机械加工用钢管可不经酸洗交货。

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