流體輸送用不鏽鋼無縫鋼管（GB/T14976

≤1.00 ≤1.00 ≤1.50

(1)尺寸規格見表6-25、表6_26。表6-25流體輸送用不鏽鋼熱軋(擠、擴)無縫鋼管的尺寸規格 (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

◎

◎

◎

◎

◎

◎

◎

註：1.◎表示熱軋管規格。 2.根據需方要求，經供需雙方協定，可供給表6-25和表6—26規格以外的其他尺寸的鋼管，尺寸偏差執行相鄰較大規格的規定。6-26流體輸送用不鏽鋼冷拔(軋)鋼管的尺寸規格 （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

●

●

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8

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9

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10

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11

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12

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20

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21

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23

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24

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27

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28

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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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42

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45

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48

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50

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54

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56

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60

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63

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65

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70

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73

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75

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76

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80

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85

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89

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90

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102

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108

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114

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127

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133

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140

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146

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159

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168

180

194

219

245

273

325

351

377

426

註：●表示冷拔（軋）鋼管規格。

(2)答應偏差見表6-27。表6-27流體輸送用不鏽鋼無縫鋼管的尺寸答應偏差

熱軋(擠、擴)鋼管				冷拔(軋)鋼管
尺寸／mm		答應偏差／mm		尺寸／mm		答應偏差／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 < DIV>	±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％

註：鋼管的彎曲度不得大於如下規定： 壁厚<15mm…………………………………………………………1.5mm／m 壁厚≥15mm…………………………………………………………2.Omm／m 熱擴管…………………………………………………………3.Omm／m(3)牌號和化學成分見表6_28。(4)力學性能見表6-29。 表6-28流體輸送用不鏽鋼無縫鋼管的牌號和化學成分

組織類型

序號

牌 號

化學成分(質量分數)(％)

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流體輸送用不鏽鋼無縫鋼管的力學性能

組織類型	序號	牌 號	推薦熱處理制度	力學性能			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

註：1.熱擠壓管的抗拉強度答應降低20Mpa.2.鋼管經熱處理並酸洗交貨。凡經整體磨、鏜或經保護氣氛熱處理的鋼管，可不經酸洗交貨。 3.根據需方要求，在契約中註明，可測定鋼管的屈服強度。