山東鋼管廠結(jié)構(gòu)用不銹鋼無縫鋼管（GB／T14975—1994）
(1)尺寸規(guī)格見表6-17、表6-18。
(2)允許偏差見表6-20。
(3)牌號(hào)和化學(xué)成分見表6-19。
(4)力學(xué)性能見表6-21。
(5)用途適于一般結(jié)構(gòu)及機(jī)械結(jié)構(gòu)用。
表6-17結(jié)構(gòu)用不銹鋼熱軋(擠、擴(kuò))無縫鋼管的尺寸規(guī)格(mm)
壁厚
外徑 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結(jié)構(gòu)用不銹鋼冷拔(軋)無縫鋼管的尺寸規(guī)格 (mm)
壁厚
外徑 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
外徑 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
外徑 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
外徑 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(軋)鋼管規(guī)格。
2.鋼管的通常長(zhǎng)度規(guī)定如下：
熱軋（擠、擴(kuò)）鋼管……………………………………………………2～12m
冷拔(軋)鋼管……………………………………………………………1—8m
3.鋼管的彎曲度不得大于如下規(guī)定：
壁厚<15mm……………………………………………………·……1.5mm／m
壁厚≥15mm……………………………………·…………………2.0mm／m
熱擴(kuò)管…………………………………………………………………3.Omm／m
表6-19結(jié)構(gòu)用不銹鋼無縫鋼管的牌號(hào)和化學(xué)成分
組織
類型 序號(hào) 牌 號(hào) 化學(xué)成分(質(zhì)量分?jǐn)?shù))(％)
C Si Mn P S Ni C Mo 其 他
奧氏
體型 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
鐵素
體型
馬氏
體型 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：*殘余元素Ni≤O.60。
表6-20結(jié)構(gòu)用不銹鋼無縫鋼管的尺寸允許偏差
熱軋(擠、擴(kuò))鋼管 冷拔(軋)鋼管
尺寸／mm 允許偏差／mm 尺寸／mm 允許偏差／mm
普通級(jí) 較高級(jí) 普通級(jí) 較高級(jí)
外徑D 68≤D≤159 ±1.25 ±l 外徑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：供機(jī)械加工用鋼管應(yīng)在合同中注明，根據(jù)需方要求，經(jīng)供需雙方協(xié)議，可規(guī)定機(jī)械加工余量。
表6-2l結(jié)構(gòu)用不銹鋼無縫鋼管的力學(xué)性能
組織類型 序號(hào) 牌 號(hào) 推薦熱處理制度 力學(xué)性能 密度(g／cm3)
ób／MPa ó0. 2／MPa δ5(％)
≥
奧氏體型 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
鐵索體型 15 OCrl3 780～830℃，空冷或緩冷 370 180 22 7.70
16 lCrl7 780～850℃，空冷或緩冷 410 245 20 7.70
馬氏體型 17 lCrl3 800～900℃，緩冷 410 205 20 7.70
18 2Crl3 800～900℃，緩冷 470 215 19 7.70
注：1.熱擠壓管的抗拉強(qiáng)度允許降低20MPa。
2.鋼管經(jīng)熱處理并酸洗交貨。凡經(jīng)整體磨、鏜或經(jīng)保護(hù)氣氛熱處理的鋼管，可不經(jīng)酸洗交貨。
3.供機(jī)械加工用鋼管可不經(jīng)酸洗交貨。
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