(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	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	較高級			普通級	較高級
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	牌  號	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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