Standards

ZheJiang Chengjiu Pipeline Co., Ltd.

Tel: 0086-0570-5012312
Fax: 0086-0570-5012312
E-mail: sales@cheng-jiu.cn

Welding Neck Flange

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Welding Neck Flange

ANSI, ASME, ASA, B16.5 WELDING NECK FLANGE

 

CLASS 150 / 300 / 600 FLANGE

 

 

Flange Dimensions & Approximate Masses / Flange Weight

 

Table ANSI, ASME, ASA, B16.5 150lb/sq.in. WELDING NECK FLANGE RF

ø

D

b

g

m

a

J*

h

k

Holes

l

Kg.

1/2"

88,9

11,1

34,9

30,2

21,3

15,7

47,6

60,3

4

15,9

0,500

3/4"

98,4

12,7

42,9

38,1

26,7

20,8

52,4

69,8

4

15,9

0,700

1"

107,9

14,3

50,8

49,2

33,5

26,7

55,6

79,4

4

15,9

1,100

1 1/4"

117,5

15,9

63,5

58,8

42,2

35,1

57,1

88,9

4

15,9

1,500

1 1/2"

127,0

17,5

73,0

65,1

48,3

40,9

61,9

98,4

4

15,9

1,800

2"

152,4

19,0

92,1

77,8

60,3

52,6

63,5

120,6

4

19,0

2,700

2 1/2"

177,8

22,2

104,8

90,5

73,1

62,7

69,8

139,7

4

19,0

4,400

3"

190,5

23,8

127,0

107,9

88,9

78,0

69,8

152,4

4

19,0

5,200

3 1/2"

215,9

23,8

139,7

122,2

101,6

90,2

71,4

177,8

8

19,0

6,400

4"

228,6

23,8

157,2

134,9

114,3

102,4

76,2

190,5

8

19,0

7,500

5"

254,0

23,8

185,7

163,5

141,2

128,3

88,9

215,9

8

22,2

9,200

6"

279,4

25,4

215,9

192,1

168,4

154,2

88,9

241,3

8

22,2

11,000

8"

342,9

28,6

269,9

246,1

219,1

202,7

101,6

298,4

8

22,2

18,300

10"

406,4

30,2

323,8

304,8

273,0

254,5

101,6

361,9

12

25,4

25,000

12"

482,6

31,7

381,0

365,1

323,8

304,8

114,3

431,8

12

25,4

39,000

14"

533,4

34,9

412,7

400,0

355,6

336,5

127,0

476,2

12

28,6

51,000

16"

596,9

36,5

469,9

457,2

406,4

387,3

127,0

539,7

16

28,6

60,000

18"

635,0

39,7

533,4

504,8

457,2

438,1

139,7

577,8

16

31,7

71,000

20"

698,5

42,9

584,2

558,8

508,0

488,9

144,5

635,0

20

31,7

88,000

22"

749,3

46,0

641,2

609,6

558,8

539,7

149,2

692,1

20

34,9

102,000

24"

812,8

47,6

692,1

663,6

609,6

590,5

152,4

749,3

20

34,9

119,000

*

The data "J" corresponds to the STD schedule

 

NOTE:
1. Class 150 flanges except Lap Joint will be furnished with 0.06 (1.6mm) raised face, which is included in ‘Thickness’ (C) and ‘Length through Hub’ (Y1), (Y3).
2. For Slip-on, Threaded, Socket Welding and Lap Joint Flanges, the hubs can be shaped either vertical from base to top or tapered within the limits of 7 degrees.
3. Blind Flanges may be made with the same hub as that used for Slip-on Flanges or without hub.
4. The gasket surface and backside (bearing surface for bolting) are made parallel within 1 degree. To accomplish parallelism, spot facing is carried out according to MSS SP-9, without reducing thickness (C).
5. Depth of Socket (D) is covered by ANSI B 16.5 only in sizes through 3 inch, over 3 inch is at the manufacturer’s option.
6. Welding Neck Flange Bore Size SCH10, SCH20, SCH30, STD, SCH40, SCH60, SCH80, SCH100, SCH 120, SCH140, SCH160, XS

 

Table ANSI, ASME, ASA B16.5 300lb/sq.in. WELDING NECK FLANGE RF

ø

D

b

g

m

a

J*

h

k

Holes

l

Kg.

1/2"

95,2

14,3

34,9

38,1

21,3

15,7

52,4

66,7

4

15,9

0,900

3/4"

117,5

15,9

42,9

47,6

26,7

20,8

57,1

82,5

4

19,0

1,500

1"

123,8

17,5

50,8

54,0

33,5

26,7

61,9

88,9

4

19,0

1,900

1 1/4"

133,3

19,0

63,5

63,5

42,2

35,1

65,1

98,4

4

19,0

2,600

1 1/2"

155,6

20,6

73,0

69,8

48,3

40,9

68,3

114,3

4

22,2

3,300

2"

165,1

22,2

92,1

84,1

60,3

52,6

69,8

127,0

8

19,0

3,600

2 1/2"

190,5

25,4

104,8

100,0

73,1

62,7

76,2

149,2

8

22,2

5,400

3"

209,5

28,6

127,0

117,5

88,9

78,0

79,4

168,3

8

22,2

7,400

3 1/2"

228,6

30,2

139,7

133,3

101,6

90,2

81,0

184,1

8

22,2

8,900

4"

254,0

31,7

157,2

146,0

114,3

102,4

85,7

200,0

8

22,2

11,900

5"

279,4

34,9

185,7

177,8

141,2

128,3

98,4

234,9

8

22,2

16,000

6"

317,5

36,5

215,9

206,4

168,4

154,2

98,4

269,9

12

22,2

20,200

8"

381,0

41,3

269,9

260,3

219,1

202,7

111,1

330,2

12

25,4

31,000

10"

444,5

47,6

323,4

320,7

273,0

254,5

117,5

387,3

16

28,6

44,300

12"

520,7

50,8

381,0

374,6

323,8

304,8

130,2

450,8

16

31,7

64,000

14"

584,2

54,0

412,7

425,4

355,6

336,5

142,9

514,3

20

31,7

88,000

16"

647,7

57,1

469,9

482,6

406,4

387,3

146,0

571,5

20

34,9

113,000

18"

711,2

60,3

533,4

533,4

457,2

438,1

158,7

628,6

24

34,9

134,000

20"

774,7

63,5

584,2

587,4

508,0

488,9

161,9

685,8

24

34,9

171,000

22"

838,2

66,7

641,2

641,2

558,8

539,7

165,1

742,9

24

41,3

195,000

24"

914,4

69,8

692,1

701,7

609,6

590,5

168,3

812,8

24

41,3

238,000

*

The data "J" corresponds to the STD schedule

 

NOTE:
1. Class 300 flanges except Lap Joint will be furnished with 0.06 (1.6mm) raised face, which is included in ‘Thickness’ (C) and ‘Length through Hub’ (Y1), (Y3).
2. For Slip-on, Threaded, Socket Welding and Lap Joint Flanges, the hubs can be shaped either vertical from base to top or tapered within the limits of 7 degrees.
3. Blind Flanges may be made with the same hub as that used for Slip-on Flanges or without hub.
4. The gasket surface and backside (bearing surface for bolting) are made parallel within 1 degree. To accomplish parallelism, spot facing is carried out according to MSS SP-9, without reducing thickness (C).
5. Depth of Socket (D) is covered by ANSI B 16.5 only in sizes through 3 inch, over 3 inch is at the manufacturer’s option.
6. Welding Neck Flange Bore Size SCH10, SCH20, SCH30, STD, SCH40, SCH60, SCH80, SCH100, SCH 120, SCH140, SCH160, XS

 

Table ANSI/ASME/ASA B16.5 600lb/sq.in. WELDING NECK FLANGE RF

ø

D

b

g

m

a

J*

h

k

Holes

l

Kg.

1/2"

95,2

14,3

34,9

38,1

21,3

15,7

52,4

66,7

4

15,9

0,900

3/4"

117,5

15,9

42,9

47,6

26,7

20,9

57,1

82,5

4

19,0

1,500

1"

123,8

17,5

50,8

54,0

33,5

26,7

61,9

88,9

4

19,0

1,900

1 1/4"

133,3

20,6

63,5

63,5

42,2

35,0

66,7

98,4

4

19,0

2,600

1 1/2"

155,6

22,2

73,0

69,8

48,3

40,9

69,8

114,3

4

22,2

3,300

2"

165,1

25,4

92,1

84,1

60,3

52,6

73,0

127,0

8

19,0

4,700

2 1/2"

190,5

28,6

104,8

100,0

73,1

62,7

79,4

149,2

8

22,2

6,500

3"

209,5

31,7

127,0

117,5

88,9

78,0

82,5

168,3

8

22,2

8,700

3 1/2"

228,6

34,9

139,7

133,3

101,6

90,1

85,7

184,1

8

25,4

11,200

4"

273,0

38,1

157,2

152,4

114,3

102,4

101,6

215,9

8

25,4

18,100

5"

330,2

44,4

185,7

188,9

141,2

128,2

114,3

266,7

8

28,6

30,500

6"

355,6

47,6

215,9

222,2

168,4

154,2

117,5

292,1

12

28,6

36,200

8"

419,1

55,6

269,9

273,0

219,1

202,7

133,3

349,2

12

31,7

56,500

10"

508,0

63,5

323,8

342,9

273,0

254,5

152,4

431,8

16

34,9

91,000

12"

558,8

66,7

381,0

400,0

323,8

304,8

155,6

488,9

20

34,9

105,000

14"

603,2

69,8

412,7

431,8

355,6

*

165,1

527,0

20

38,1

125,000

16"

685,8

76,2

469,9

495,3

406,4

177,8

603,2

20

41,3

178,000

18"

742,9

82,5

533,4

546,1

457,2

184,1

654,0

20

44,4

261,000

20"

812,8

88,9

584,2

609,6

508,0

190,5

723,9

24

44,4

268,000

22"

869,9

95,2

641,2

666,7

558,8

196,8

777,9

24

47,6

328,000

24"

939,8

101,6

692,1

717,5

609,6

203,2

838,2

24

50,8

380,000

*

The data "J" corresponds to the STD schedule of flanges

To be specifiedby customer

 

NOTE:
1. Class 600 flanges except Lap Joint will be furnished with 0.25 (6.35mm) raised face, which is not included in ‘Thickness’ (C) and ‘Length through Hub’ (Y1), (Y3).
2. For Slip-on, Threaded, Socket Welding and Lap Joint Flanges, the hubs can be shaped either vertical from base to top or tapered within the limits of 7 degrees.
3. Blind Flanges may be made with the same hub as that used for Slip-on Flanges or without hub.
4. The gasket surface and backside (bearing surface for bolting) are made parallel within 1 degree. To accomplish parallelism, spot facing is carried out according to MSS SP-9, without reducing thickness (C).
5. Dimensions of sizes 1/2 through 3 1/2 are the same as for Class 400 Flanges.
6. Depth of Socket (D) is covered by ANSI B 16.5 only in sizes through 3 inch, over 3 inch is at the manufacturer’s option.
7. Welding Neck Flange Bore Size SCH10, SCH20, SCH30, STD, SCH40, SCH60, SCH80, SCH100, SCH 120, SCH140, SCH160, XS

 

 

Production Capacity & Purchase Details

 

 

1.

Supply Flange Dimension DN15 - DN2000 (1/2" - 80"), Forged Flange.

2.

Flange Material Carbon Steel: ASTM A105, A181, A350 LF1, A350LF2, A350LF3, A36, A234 WPB, Q235B, 20#, 20Mn.

3.

Flange Material Stainless Steel: ASTM A182 F304, F304L, F316, F316L, F321 etc.

4.

Flange Anti Rust: Anti Rust Oil, Black Paint, Yellow Paint Coating, Hot Dipped Galvanized, Cold Galvanized etc.

5.

Flange Monthly Output: 3000 tons per Month.

6.

Flange Delivery Terms: CIF, CFR, FOB, EXW, transport by sea, by air, by express DHL, FedEx, TNT, EMS etc

7.

Flange Payment Terms: Wire Transfer (T/T), Irrevocable L/C at Sight etc.

8.

Flange Minimum Order Quantity (MOQ): 1Ton or 100Pcs per size.

9.

Quality Guarantee: EN10204 3.1 Certificate, Mill Certificate, Third Party Inspection, Free Replacement Service.

10.

Find More Requirements In Flanges Market.

Standards

ZheJiang Chengjiu Pipeline Co., Ltd.

Tel: 0086-0570-5012312
Fax: 0086-0570-5012312
E-mail: sales@cheng-jiu.cn

Welding Neck Flange

  1. Home
  2. >
  3. Flange Size
  4. >
  5. Standards
  6. >
  7. ANSI (ASME / ASA)...
  8. >
  9. Welding Neck Flange
Welding Neck Flange

ANSI, ASME, ASA, B16.5 WELDING NECK FLANGE

 

CLASS 150 / 300 / 600 FLANGE

 

 

Flange Dimensions & Approximate Masses / Flange Weight

 

Table ANSI, ASME, ASA, B16.5 150lb/sq.in. WELDING NECK FLANGE RF

ø

D

b

g

m

a

J*

h

k

Holes

l

Kg.

1/2"

88,9

11,1

34,9

30,2

21,3

15,7

47,6

60,3

4

15,9

0,500

3/4"

98,4

12,7

42,9

38,1

26,7

20,8

52,4

69,8

4

15,9

0,700

1"

107,9

14,3

50,8

49,2

33,5

26,7

55,6

79,4

4

15,9

1,100

1 1/4"

117,5

15,9

63,5

58,8

42,2

35,1

57,1

88,9

4

15,9

1,500

1 1/2"

127,0

17,5

73,0

65,1

48,3

40,9

61,9

98,4

4

15,9

1,800

2"

152,4

19,0

92,1

77,8

60,3

52,6

63,5

120,6

4

19,0

2,700

2 1/2"

177,8

22,2

104,8

90,5

73,1

62,7

69,8

139,7

4

19,0

4,400

3"

190,5

23,8

127,0

107,9

88,9

78,0

69,8

152,4

4

19,0

5,200

3 1/2"

215,9

23,8

139,7

122,2

101,6

90,2

71,4

177,8

8

19,0

6,400

4"

228,6

23,8

157,2

134,9

114,3

102,4

76,2

190,5

8

19,0

7,500

5"

254,0

23,8

185,7

163,5

141,2

128,3

88,9

215,9

8

22,2

9,200

6"

279,4

25,4

215,9

192,1

168,4

154,2

88,9

241,3

8

22,2

11,000

8"

342,9

28,6

269,9

246,1

219,1

202,7

101,6

298,4

8

22,2

18,300

10"

406,4

30,2

323,8

304,8

273,0

254,5

101,6

361,9

12

25,4

25,000

12"

482,6

31,7

381,0

365,1

323,8

304,8

114,3

431,8

12

25,4

39,000

14"

533,4

34,9

412,7

400,0

355,6

336,5

127,0

476,2

12

28,6

51,000

16"

596,9

36,5

469,9

457,2

406,4

387,3

127,0

539,7

16

28,6

60,000

18"

635,0

39,7

533,4

504,8

457,2

438,1

139,7

577,8

16

31,7

71,000

20"

698,5

42,9

584,2

558,8

508,0

488,9

144,5

635,0

20

31,7

88,000

22"

749,3

46,0

641,2

609,6

558,8

539,7

149,2

692,1

20

34,9

102,000

24"

812,8

47,6

692,1

663,6

609,6

590,5

152,4

749,3

20

34,9

119,000

*

The data "J" corresponds to the STD schedule

 

NOTE:
1. Class 150 flanges except Lap Joint will be furnished with 0.06 (1.6mm) raised face, which is included in ‘Thickness’ (C) and ‘Length through Hub’ (Y1), (Y3).
2. For Slip-on, Threaded, Socket Welding and Lap Joint Flanges, the hubs can be shaped either vertical from base to top or tapered within the limits of 7 degrees.
3. Blind Flanges may be made with the same hub as that used for Slip-on Flanges or without hub.
4. The gasket surface and backside (bearing surface for bolting) are made parallel within 1 degree. To accomplish parallelism, spot facing is carried out according to MSS SP-9, without reducing thickness (C).
5. Depth of Socket (D) is covered by ANSI B 16.5 only in sizes through 3 inch, over 3 inch is at the manufacturer’s option.
6. Welding Neck Flange Bore Size SCH10, SCH20, SCH30, STD, SCH40, SCH60, SCH80, SCH100, SCH 120, SCH140, SCH160, XS

 

Table ANSI, ASME, ASA B16.5 300lb/sq.in. WELDING NECK FLANGE RF

ø

D

b

g

m

a

J*

h

k

Holes

l

Kg.

1/2"

95,2

14,3

34,9

38,1

21,3

15,7

52,4

66,7

4

15,9

0,900

3/4"

117,5

15,9

42,9

47,6

26,7

20,8

57,1

82,5

4

19,0

1,500

1"

123,8

17,5

50,8

54,0

33,5

26,7

61,9

88,9

4

19,0

1,900

1 1/4"

133,3

19,0

63,5

63,5

42,2

35,1

65,1

98,4

4

19,0

2,600

1 1/2"

155,6

20,6

73,0

69,8

48,3

40,9

68,3

114,3

4

22,2

3,300

2"

165,1

22,2

92,1

84,1

60,3

52,6

69,8

127,0

8

19,0

3,600

2 1/2"

190,5

25,4

104,8

100,0

73,1

62,7

76,2

149,2

8

22,2

5,400

3"

209,5

28,6

127,0

117,5

88,9

78,0

79,4

168,3

8

22,2

7,400

3 1/2"

228,6

30,2

139,7

133,3

101,6

90,2

81,0

184,1

8

22,2

8,900

4"

254,0

31,7

157,2

146,0

114,3

102,4

85,7

200,0

8

22,2

11,900

5"

279,4

34,9

185,7

177,8

141,2

128,3

98,4

234,9

8

22,2

16,000

6"

317,5

36,5

215,9

206,4

168,4

154,2

98,4

269,9

12

22,2

20,200

8"

381,0

41,3

269,9

260,3

219,1

202,7

111,1

330,2

12

25,4

31,000

10"

444,5

47,6

323,4

320,7

273,0

254,5

117,5

387,3

16

28,6

44,300

12"

520,7

50,8

381,0

374,6

323,8

304,8

130,2

450,8

16

31,7

64,000

14"

584,2

54,0

412,7

425,4

355,6

336,5

142,9

514,3

20

31,7

88,000

16"

647,7

57,1

469,9

482,6

406,4

387,3

146,0

571,5

20

34,9

113,000

18"

711,2

60,3

533,4

533,4

457,2

438,1

158,7

628,6

24

34,9

134,000

20"

774,7

63,5

584,2

587,4

508,0

488,9

161,9

685,8

24

34,9

171,000

22"

838,2

66,7

641,2

641,2

558,8

539,7

165,1

742,9

24

41,3

195,000

24"

914,4

69,8

692,1

701,7

609,6

590,5

168,3

812,8

24

41,3

238,000

*

The data "J" corresponds to the STD schedule

 

NOTE:
1. Class 300 flanges except Lap Joint will be furnished with 0.06 (1.6mm) raised face, which is included in ‘Thickness’ (C) and ‘Length through Hub’ (Y1), (Y3).
2. For Slip-on, Threaded, Socket Welding and Lap Joint Flanges, the hubs can be shaped either vertical from base to top or tapered within the limits of 7 degrees.
3. Blind Flanges may be made with the same hub as that used for Slip-on Flanges or without hub.
4. The gasket surface and backside (bearing surface for bolting) are made parallel within 1 degree. To accomplish parallelism, spot facing is carried out according to MSS SP-9, without reducing thickness (C).
5. Depth of Socket (D) is covered by ANSI B 16.5 only in sizes through 3 inch, over 3 inch is at the manufacturer’s option.
6. Welding Neck Flange Bore Size SCH10, SCH20, SCH30, STD, SCH40, SCH60, SCH80, SCH100, SCH 120, SCH140, SCH160, XS

 

Table ANSI/ASME/ASA B16.5 600lb/sq.in. WELDING NECK FLANGE RF

ø

D

b

g

m

a

J*

h

k

Holes

l

Kg.

1/2"

95,2

14,3

34,9

38,1

21,3

15,7

52,4

66,7

4

15,9

0,900

3/4"

117,5

15,9

42,9

47,6

26,7

20,9

57,1

82,5

4

19,0

1,500

1"

123,8

17,5

50,8

54,0

33,5

26,7

61,9

88,9

4

19,0

1,900

1 1/4"

133,3

20,6

63,5

63,5

42,2

35,0

66,7

98,4

4

19,0

2,600

1 1/2"

155,6

22,2

73,0

69,8

48,3

40,9

69,8

114,3

4

22,2

3,300

2"

165,1

25,4

92,1

84,1

60,3

52,6

73,0

127,0

8

19,0

4,700

2 1/2"

190,5

28,6

104,8

100,0

73,1

62,7

79,4

149,2

8

22,2

6,500

3"

209,5

31,7

127,0

117,5

88,9

78,0

82,5

168,3

8

22,2

8,700

3 1/2"

228,6

34,9

139,7

133,3

101,6

90,1

85,7

184,1

8

25,4

11,200

4"

273,0

38,1

157,2

152,4

114,3

102,4

101,6

215,9

8

25,4

18,100

5"

330,2

44,4

185,7

188,9

141,2

128,2

114,3

266,7

8

28,6

30,500

6"

355,6

47,6

215,9

222,2

168,4

154,2

117,5

292,1

12

28,6

36,200

8"

419,1

55,6

269,9

273,0

219,1

202,7

133,3

349,2

12

31,7

56,500

10"

508,0

63,5

323,8

342,9

273,0

254,5

152,4

431,8

16

34,9

91,000

12"

558,8

66,7

381,0

400,0

323,8

304,8

155,6

488,9

20

34,9

105,000

14"

603,2

69,8

412,7

431,8

355,6

*

165,1

527,0

20

38,1

125,000

16"

685,8

76,2

469,9

495,3

406,4

177,8

603,2

20

41,3

178,000

18"

742,9

82,5

533,4

546,1

457,2

184,1

654,0

20

44,4

261,000

20"

812,8

88,9

584,2

609,6

508,0

190,5

723,9

24

44,4

268,000

22"

869,9

95,2

641,2

666,7

558,8

196,8

777,9

24

47,6

328,000

24"

939,8

101,6

692,1

717,5

609,6

203,2

838,2

24

50,8

380,000

*

The data "J" corresponds to the STD schedule of flanges

To be specifiedby customer

 

NOTE:
1. Class 600 flanges except Lap Joint will be furnished with 0.25 (6.35mm) raised face, which is not included in ‘Thickness’ (C) and ‘Length through Hub’ (Y1), (Y3).
2. For Slip-on, Threaded, Socket Welding and Lap Joint Flanges, the hubs can be shaped either vertical from base to top or tapered within the limits of 7 degrees.
3. Blind Flanges may be made with the same hub as that used for Slip-on Flanges or without hub.
4. The gasket surface and backside (bearing surface for bolting) are made parallel within 1 degree. To accomplish parallelism, spot facing is carried out according to MSS SP-9, without reducing thickness (C).
5. Dimensions of sizes 1/2 through 3 1/2 are the same as for Class 400 Flanges.
6. Depth of Socket (D) is covered by ANSI B 16.5 only in sizes through 3 inch, over 3 inch is at the manufacturer’s option.
7. Welding Neck Flange Bore Size SCH10, SCH20, SCH30, STD, SCH40, SCH60, SCH80, SCH100, SCH 120, SCH140, SCH160, XS

 

 

Production Capacity & Purchase Details

 

 

1.

Supply Flange Dimension DN15 - DN2000 (1/2" - 80"), Forged Flange.

2.

Flange Material Carbon Steel: ASTM A105, A181, A350 LF1, A350LF2, A350LF3, A36, A234 WPB, Q235B, 20#, 20Mn.

3.

Flange Material Stainless Steel: ASTM A182 F304, F304L, F316, F316L, F321 etc.

4.

Flange Anti Rust: Anti Rust Oil, Black Paint, Yellow Paint Coating, Hot Dipped Galvanized, Cold Galvanized etc.

5.

Flange Monthly Output: 3000 tons per Month.

6.

Flange Delivery Terms: CIF, CFR, FOB, EXW, transport by sea, by air, by express DHL, FedEx, TNT, EMS etc

7.

Flange Payment Terms: Wire Transfer (T/T), Irrevocable L/C at Sight etc.

8.

Flange Minimum Order Quantity (MOQ): 1Ton or 100Pcs per size.

9.

Quality Guarantee: EN10204 3.1 Certificate, Mill Certificate, Third Party Inspection, Free Replacement Service.

10.

Find More Requirements In Flanges Market.