(1)尺寸規(guī)格見表6-25、表6_26。
表6-25流體輸送用不銹鋼熱軋(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

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.◎表示熱軋管規(guī)格。
  2.根據(jù)需方要求，經(jīng)供需雙方協(xié)議，可供應(yīng)表6-25和表6—26規(guī)格以外的其他尺寸的鋼管，尺寸偏差執(zhí)行相鄰較大規(guī)格的規(guī)定。
6-26流體輸送用不銹鋼冷拔(軋)鋼管的尺寸規(guī)格        （mm）

壁厚 外徑

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

●

●

●

●

●

●

●

●

●

●

●

12

●

●

●

●

●

●

●

●

●

●

●

●

●

13

●

●

●

●

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●

●

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●

●

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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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●

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●

●

●

●

●

20

●

●

●

●

●

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●

●

●

●

●

●

●

●

●

21

●

●

●

●

●

●

●

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●

●

●

●

●

●

●

●

●

22

●

●

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●

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●

●

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●

●

●

●

●

●

●

23

●

●

●

●

●

●

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●

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●

●

●

●

●

●

●

24

●

●

●

●

●

●

●

●

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●

●

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●

●

●

●

25

●

●

●

●

●

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●

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●

●

●

●

●

●

27

●

●

●

●

●

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●

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●

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●

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●

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●

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●

●

28

●

●

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●

●

●

●

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●

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●

●

●

●

●

30

●

●

●

●

●

●

●

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●

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●

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●

●

●

●

●

●

●

32

●

●

●

●

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●

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●

●

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●

●

●

●

●

●

●

●

●

●

●

34

●

●

●

●

●

●

●

●

●

●

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●

●

●

●

●

●

●

●

●

●

●

35

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

36

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

38

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

40

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

42

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

45

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

48

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

50

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

51

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

53

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

54

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

56

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

57

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

60

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

63

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

65

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

68

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

70

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

73

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

75

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

76

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

80

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

83

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

85

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

89

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

90

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

95

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

100

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

102

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

108

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

114

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

127

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

133

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

140

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

146

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

159

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

168

180

194

219

245

273

325

351

377

426

注：●表示冷拔（軋）鋼管規(guī)格。

 (2)允許偏差見表6-27。
表6-27流體輸送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	較高級			普通級	較高級
外徑D	68≤D≤159	±1.25	±1	外徑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：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.Omm／m
  熱擴(kuò)管…………………………………………………………3.Omm／m
(3)牌號和化學(xué)成分見表6_28。
(4)力學(xué)性能見表6-29。
表6-28流體輸送用不銹鋼無縫鋼管的牌號和化學(xué)成分

組織類型

序號

牌  號

化學(xué)成分(質(zhì)量分?jǐn)?shù))(％)

C

Si

Mn

P

S

Ni

Cr

M0

Ti

其他

奧氏體 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

鐵素 體型

18

0Cr13

≤0.08

≤O.60

≤0.80

≤O.035

≤O.030

①

12.00～14.oo

奧氏 體.鐵 索體型

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流體輸送用不銹鋼無縫鋼管的力學(xué)性能

組織類型	序號	牌  號	推薦熱處理制度	力學(xué)性能			密度／(g／cm3)
				ób／MPa	óO.2／MPa	δ5(％)
				≥
奧氏體型	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
鐵素 體型	18	OCrl3	780～830℃，空冷或緩冷	370	180	22	7.70
奧氏體一鐵素 體型	19	OCr26Ni5M02	≥950℃，急冷	590	390	18	7.80

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.根據(jù)需方要求，在合同中注明，可測定鋼管的屈服強(qiáng)度。

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