Carbon Steel Blind Flange

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Carbon Steel Blind Flange

Holic® offers Carbon Steel Blind Flange of various standards and sizes.

Item Name: Carbon Steel Blind Flange/CS Blind Flange.

Brand: HOLIC®.

Product Description

Carbon Steel Blind Flange

Holic® offers Carbon Steel Blind Flange of various standards and sizes.

Item Name: Carbon Steel Blind Flange/CS Blind Flange.

Brand: HOLIC®.

CLASS 150 According to ASTM A/SA-105; ANSI B16.5
Nominal Pipe Size Outside Diam. of Flange (O) Thick. of Flange (C) Diam. of Raised Face (R) No. of Holes Diam. of Holes Diam. of Bolts Diam. of Bolt Circle Approx. Weight (in Pounds)
1/2 3.5 0.44 1.38 4 0.62 0.5 2.38 1
3/4 3.88 0.5 1.69 4 0.62 0.5 2.75 2
1 4.25 0.56 2 4 0.62 0.5 3.12 2
1 1/4 4.62 0.62 2.5 4 0.62 0.5 3.5 3
1 1/2 5 0.69 2.88 4 0.62 0.5 3.88 4
2 6 0.75 3.62 4 0.75 0.62 4.75 5
2 1/2 7 0.88 4.12 4 0.75 0.62 5.5 7
3 7.5 0.94 5 4 0.75 0.62 6 9
3 1/2 8.5 0.94 5.5 8 0.75 0.62 7 13
4 9 0.94 6.19 8 0.75 0.62 7.5 17
5 10 0.94 7.31 8 0.88 0.75 8.5 20
6 11 1 8.5 8 0.88 0.75 9.5 26
8 13.5 1.12 10.62 8 0.88 0.75 11.75 45
10 16 1.19 12.75 12 1 0.88 14.25 70
12 19 1.25 15 12 1 0.88 17 110
14 21 1.38 16.25 12 1.12 1 18.75 140
16 23.5 1.44 18.5 16 1.12 1 21.25 180
18 25 1.56 21 16 1.25 1.12 22.75 220
20 27.5 1.69 23 20 1.25 1.12 25 285
24 32 1.88 27.25 20 1.38 1.25 29.5 430
CLASS 300 According to ASTM A/SA-105; ANSI B16.5
Nominal Pipe Size Outside Diam. of Flange (O) Thick. of Flange (C) Diam. of Raised Face (R) No. of Holes Diam. of Holes Diam. of Bolts Diam. of Bolt Circle Approx. Weight (in Pounds)
1/2 3.75 0.56 1.38 4 0.62 0.5 2.62 2
3/4 4.62 0.62 1.69 4 0.75 0.62 3.25 3
1 4.88 0.69 2 4 0.75 0.62 3.5 3
1 1/4 5.25 0.75 2.5 4 0.75 0.62 3.88 4
1 1/2 6.12 0.81 2.88 4 0.88 0.75 4.5 6
2 6.5 0.88 3.62 8 0.75 0.62 5 8
2 1/2 7.5 1 4.12 8 0.88 0.75 5.88 12
3 8.25 1.12 5 8 0.88 0.75 6.62 16
3 1/2 9 1.19 5.5 8 0.88 0.75 7.25 21
4 10 1.25 6.19 8 0.88 0.75 7.88 27
5 11 1.38 7.31 8 0.88 0.75 9.25 35
6 12.5 1.44 8.5 12 0.88 0.75 10.62 50
8 15 1.62 10.62 12 1 0.88 13 81
10 17.5 1.88 12.75 16 1.12 1 15.25 124
12 20.5 2 15 16 1.25 1.12 17.75 185
14 23 2.12 16.25 20 1.25 1.12 20.25 250
16 25.5 2.25 18.5 20 1.38 1.25 22.5 295
18 28 2.38 21 24 1.38 1.25 24.75 395
20 30.5 2.5 23 24 1.38 1.25 27 505
24 36 2.75 27.25 24 1.62 1.5 32 790
CLASS 600 According to ASTM A/SA-105; ANSI B16.5
Nominal Pipe Size Outside Diam. of Flange (O) Thick. of Flange (C) Diam. of Raised Face (R) No. of Holes Diam. of Holes Diam. of Bolts Diam. of Bolt Circle Approx. Weight (in Pounds)
1/2 3.75 0.56 1.38 4 0.62 0.5 2.62 2
3/4 4.62 0.62 1.69 4 0.75 0.62 3.25 3
1 4.88 0.69 2 4 0.75 0.62 3.5 4
1 1/4 5.25 0.81 2.5 4 0.75 0.62 3.88 5
1 1/2 6.12 0.88 2.88 4 0.88 0.75 4.5 8
2 6.5 1 3.62 8 0.75 0.62 5 10
2 1/2 7.5 1.12 4.12 8 0.88 0.75 5.88 15
3 8.25 1.25 5 8 0.88 0.75 6.62 20
3 1/2 9 1.38 5.5 8 1 0.88 7.25 29
4 10.75 1.5 6.19 8 1 0.88 8.5 41
5 13 1.75 7.31 8 1.12 1 10.5 68
6 14 1.88 8.5 12 1.12 1 11.5 86
8 16.5 2.19 10.62 12 1.25 1.12 13.75 140
10 20 2.5 12.75 16 1.38 1.25 17 230
12 22 2.62 15 20 1.38 1.25 19.25 295
14 23.75 2.75 16.25 20 1.5 1.38 20.75 355
16 27 3 18.5 20 1.62 1.5 23.75 495
18 29.25 3.25 21 20 1.75 1.62 25.75 630
20 32 3.5 23 24 1.75 1.62 28.5 810
24 37 4 27.25 24 2 1.88 33 1250
CLASS 900 According to ASTM A/SA-105; ANSI B16.5
Nominal Pipe Size Outside Diam. of Flange (O) Thick. of Flange (C) Diam. of Raised Face (R) No. of Holes Diam. of Holes Diam. of Bolts Diam. of Bolt Circle Approx. Weight (in Pounds)
1/2 4.75 0.88 1.38 4 0.88 0.75 3.25 4
3/4 5.12 1 1.69 4 0.88 0.75 3.5 6
1 5.88 1.12 2 4 1 0.88 4 8
1 1/4 6.25 1.12 2.5 4 1 0.88 4.38 9
1 1/2 7 1.25 2.88 4 1.12 1 4.88 13
2 8.5 1.5 3.62 8 1 0.88 6.5 25
2 1/2 9.62 1.62 4.12 8 1.12 1 7.5 35
3 9.50 1.50 5 8 1.00 0.88 7.50 29
4 11.50 1.75 6.19 8 1.25 1.12 9.25 54
5 13.50 2.00 7.31 8 1.38 1.25 11.00 87
6 15.00 2.19 8.5 12 1.25 1.12 12.50 115
8 18.50 2.50 10.62 12 1.50 1.38 15.50 200
10 21.50 2.75 12.75 16 1.50 1.38 18.50 290
12 24.00 3.12 15 20 1.50 1.38 21.00 415
14 25.25 3.38 16.25 20 1.62 1.50 22.00 520
16 27.75 3.50 18.5 20 1.75 1.62 24.25 600
18 31.00 4.00 21 20 2.00 1.88 27.00 850
20 33.75 4.25 23 20 2.12 2.00 29.50 1075
24 41.00 5.50 27.25 20 2.62 2.50 35.50 2025
CLASS 1500 According to ASTM A/SA-105; ANSI B16.5
Nominal Pipe Size Outside Diam. of Flange (O) Thick. of Flange (C) Diam. of Raised Face (R) No. of Holes Diam. of Holes Diam. of Bolts Diam. of Bolt Circle Approx. Weight (in Pounds)
1/2 4.75 0.88 1.38 4 0.88 0.75 3.25 4
3/4 5.12 1 1.69 4 0.88 0.75 3.5 6
1 5.88 1.12 2 4 1 0.88 4 8
1 1/4 6.25 1.12 2.5 4 1 0.88 4.38 9
1 1/2 7 1.25 2.88 4 1.12 1 4.88 13
2 8.5 1.5 3.62 8 1 0.88 6.5 25
2 1/2 9.62 1.62 4.12 8 1.12 1 7.5 35
3 10.5 1.88 5 8 1.25 1.12 8 48
4 12.25 2.12 6.19 8 1.38 1.25 9.5 73
5 14.75 2.88 7.31 8 1.62 1.5 11.5 140
6 15.5 3.25 8.5 12 1.5 1.38 12.5 160
8 19 3.62 10.62 12 1.75 1.62 15.5 300
10 23 4.25 12.75 12 2 1.88 19 510
12 26.5 4.88 15 16 2.12 2 22.5 690
14 29.5 5.25 16.25 16 2.38 2.25 25 975
16 32.5 5.75 18.5 16 2.62 2.5 27.75 1300
18 36 6.38 21 16 2.88 2.75 30.5 1750
20 38.75 7 23 16 3.12 3 32.75 2225
24 46 8 27.25 16 3.62 3.5 39 3625

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About Us

Since its foundation in 1995, Holic Oil Pipeline Co., LTD has been committed to being a major supplier of quality kinds of carbon steel pipe, stainless steel tube, hollow section, perforated metal products and numerous types of pipe fittings. Covering an area of 450,000 square meters, Holic Oil Pipeline Co.,Ltd has three production units: Foundry, Rolling and Extrusion mills.

Quality Control


Holic®‘s quality assurance system is certified in accordance with the ISO 9001 standards. An independent quality assurance department is responsible for all working procedures required to ensure that all manufacturing processes are carried out in accordance with international technical delivery conditions like ASTM/ASME, EN, API and with the customer specifications.

Main Products


Starting as an oil casing pipe manufacturer in 1995, Holic®‘s core business is to provide quality metal pipes and tubes especially for the oil and gas industry.
Our products can be classified as the following 5 major categories:
1. Carbon Steel Pipe
2. Stainless Steel Pipe
3. Hollow Section
4. Perforated Metal sheets/tubing
5. Pipe Fittings

Contact Us


Inquiry:

oilpipelinemanufacturer@outlook.com

Headquarter: Chaoyang, Liaoning, China.

Steel Pipe Mill: Cangzhou, Hebei, China.

Pipe Fittings Plant: Tianjin, China.

Hollow Section Mill: Shanghai, China.

Perforated Tubing Mill: Dezhou, Shandong, China.

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