(1)尺寸规格见表6-25、表6_26。
表6-25流体输送用不锈钢热轧(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

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

◎

◎

◎

◎

◎

◎

◎

注：1.◎表示热轧管规格。
  2.根据需方要求，经供需双方协议，可供应表6-25和表6—26规格以外的其他尺寸的钢管，尺寸偏差执行相邻较大规格的规定。
6-26流体输送用不锈钢冷拔(轧)钢管的尺寸规格        （mm）

壁厚 外径

O.5

O.6

0.8

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.O

6.5

7.O

7.5

8.O

8.5

9.0

9.5

10

11

12

13

14

15

6

●

●

●

●

●

●

●

●

●

7

●

●

●

●

●

●

●

●

●

8

●

●

●

●

●

●

●

●

●

9

●

●

●

●

●

●

●

●

●

●

●

10

●

●

●

●

●

●

●

●

●

●

●

11

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12

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13

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14

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15

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16

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17

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18

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19

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20

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21

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22

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23

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24

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25

●

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27

●

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28

●

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30

●

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32

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34

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35

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36

●

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38

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40

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42

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45

●

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48

●

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50

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51

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53

●

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54

●

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●

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●

56

●

●

●

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●

●

●

●

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●

●

●

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●

57

●

●

●

●

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●

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60

●

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63

●

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65

●

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68

●

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70

●

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73

●

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●

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●

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●

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●

●

75

●

●

●

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●

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●

●

●

●

76

●

●

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●

●

●

●

●

●

●

●

●

80

●

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●

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●

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83

●

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●

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●

●

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●

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●

●

85

●

●

●

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●

●

●

●

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●

●

●

●

●

●

●

●

●

●

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●

89

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

90

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

95

●

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●

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●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

100

●

●

●

●

●

●

●

●

●

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●

●

●

●

●

●

●

●

●

●

●

102

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

108

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

114

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

127

●

●

●

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●

●

●

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●

●

●

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●

●

●

●

●

●

133

●

●

●

●

●

●

●

●

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●

●

●

●

●

●

●

●

●

●

140

●

●

●

●

●

●

●

●

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●

●

●

●

●

●

●

●

●

●

146

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

159

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

168

180

194

219

245

273

325

351

377

426

注：●表示冷拔（轧）钢管规格。

 (2)允许偏差见表6-27。
表6-27流体输送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	±1	外径D	6～lO	±0.20	±O.15
					>lO～30	±O.30	±O.20
	159	±1.5			>30～50	士O.40	±0.30
					>50	±O.9％	±O.8％
壁厚s	>15	+15 -12.5	±12.5	壁厚s	O.5-1	士O.15 ±14％	土O.12
					>1～3		+12％ -lO％
	≥15	+20 -15
					>3	+12％ -10％	±10％

注：钢管的弯曲度不得大于如下规定：
  壁厚<15mm…………………………………………………………1.5mm／m
  壁厚≥15mm…………………………………………………………2.Omm／m
  热扩管…………………………………………………………3.Omm／m
(3)牌号和化学成分见表6_28。
(4)力学性能见表6-29。
表6-28流体输送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

Cr

M0

Ti

其他

奥氏体 型

1

0Cr18Ni9

≤0.07

≤1.00

≤2.00

≤O.035

≤O.030

8.oo～11.00

17.00～19.00

2

00Crl9NilO

≤O.03c

≤1.00

≤2.00

≤O.035

≤O.030

8.00～12.00

18.00～20.00

3

OCr23Nil3

≤O.08

≤1.00

≤2.00

≤O.035

≤O.030

12.0～15.00

22.0～24.00

4

oCr25Ni20

≤O.08

≤1.oo

≤2.00

≤O.035

≤O.030

19.00～22.00

24.00～26.00

5wc～0.07

5

0Crl8Ni10Ti

≤O.08

≤1.00

≤2.oo

≤O.035

≤0.030

9.00～12.00

17.00～19.00

≥5wc

6

OCrl8Ni11Nb

≤O.08

≤1.00

≤2.00

≤O.035

≤O.030

9.00～13.00

17.00～19.00

Nb≥lOwc

7

OCrl7Nil2M02

≤O.08

≤1.0D

≤2.00

≤0.035

≤O.030

10.00～14.00

16.00～18.50

2.00～3.00

8

00Crl7Ni14M02

≤0.030

≤1.00

≤2.00

≤O.035

≤0.030

12.00～15.00

16.0～18.00

2.00～3.00

9

OCrl9Nil3M03

≤O.08

≤1.00

≤2.00

≤O.035

≤0.030

11.00～15.00

18.00～20.00

3.00～4.00

lO

00Crl9Nil3M03

≤O.030

≤1.00

≤2.00

≤O.035

≤0.030

11.00～15.00

18.00～20.00

3.00～4.00

11

OCrl8Nil2M02Ti

≤O.08

≤1.00

≤2.00

≤O.035

≤0.030

11.00～14.00

16.00～19.00

1.80～2.50

5wc～0.70

12

1Crl8Nil2M02Ti

≤0.12

≤1.00

≤2.00

≤O.035

≤O.030

11.oo～14.00

16.00～19.00

1.80～2.50

5(wc～O.02) ～O.80

13

0Crl8Ni12Mo3Ti

≤0.08

≤1.00

≤2.00

≤O.035

≤O.030

11.00～14.00

16.00～19.00

2.50～3.50

5wc～O.70

14

lCrl8Ni12Mo3Ti

≤O.12

≤1.00

≤2.00

≤O.035

≤O.030

1.00～14.00

16.0～19.00

2.50～3.50

5(wc_o.02) ～0.80

15

0Cr18Ni12Mo2C

≤O.08

≤1.00

≤2.00

≤O.035

≤O.030

11.00～14.00

17.00～19.00

1.20～2.75

Gul.0～2.50

16

00Cr18Ni14Mo2Cu2

≤O.03(

≤1.oD

≤2.00

≤0.035

≤0.030

12.00～16.00

17.00～19.00

1.20～2.75

Cu1.00～2.50

17

1Crl8Ni9Ti

≤O.12

≤1.00

≤2.oo

≤O.035

≤O.030

8.00～11.00

17.00～19.00

5(wc～0.02) ～0.08

铁素 体型

18

0Cr13

≤0.08

≤O.60

≤0.80

≤O.035

≤O.030

①

12.00～14.oo

奥氏 体.铁 索体型

19

OCr26Ni5Mo2

≤O.08

≤1.00

≤1.50

≤O.035

≤O.030

3.00～6.00

23.00～28.00

1.00～3.00

表6-29流体输送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	óO.2／MPa	δ5(％)
				≥
奥氏体型	1	OCrl8Ni9	1010～1150℃，急冷	520	205	35	7.93
	2	00Cr19Nil0	1010～1150℃，急冷	480	175	35	7.93
	3	0Cr23Nil3	1030～1150℃，急冷	520	206	35	7.98
	4	OCr25Ni20	1030～1150℃，急冷	520	205	35	7.98
	5	OCrl8Nil0Ti	920～1150℃，急冷	520	205	35	7.95
	6	OCrl8Ni11Nb	980～1150℃，急冷	520	206	35	7.98
	7	OCrl7Ni12M02	1010～1150℃，急冷	520	205	35	7.98
	8	00Cr17Nil4Mo2	1010～1150℃，急冷	480	175	35	7.98
	9	OCrl9Nil3M03	lOlO～1150℃，急冷	520	205	35	7.98
	10	00Cr19Nil3M03	1010～1150℃，急冷	480	175	35	7.98
	ll	OCrl8Nil2M02Ti	1000～1100℃，急冷	530	205	35	8.00
	12	1Crl8Ni12M02Ti	1000～1100℃，急冷	530	205	35	8.00
	13	0Cr18Ni12Mo3Ti	1000～1100℃，急冷	530	205	35	8.10
	14	1Crl8Nil2M03Ti	1000～1100℃，急冷	530	205	35	8.10
	15	0Crl8Nil2M02Cu2	1010～1150℃，急冷	520	205	35	7.98
	16	00Cr18Nil4M02Cu2	1010～1150℃，急冷	480	180	35	7.98
	17	1Crl8Ni9Ti	1000～1100℃，急冷	520	205	35	7.90
铁素 体型	18	OCrl3	780～830℃，空冷或缓冷	370	180	22	7.70
奥氏体一铁素 体型	19	OCr26Ni5M02	≥950℃，急冷	590	390	18	7.80

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.根据需方要求，在合同中注明，可测定钢管的屈服强度。

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