JIS Carbon Steel Threaded Flanges

Performance characteristics of carbon steel threaded flange:

1. Due to the inner diameter of flange with thread, it can be directly used with threaded steel pipe without welding.

2. The additional pressure on pipe wall caused by threaded flange connection is small, which is one of the flange structures widely used in engineering construction.

3. The installation and disassembly of threaded flange are convenient and do not need welding.

The size of flange required for installation of different machines is different. Therefore, in order to unify the national standard, the standard size of threaded flange is determined. For different specifications of facilities, different sizes of threaded flange can be used. In China, the specification, form and size parameters of threaded flange are specified: the inner diameter is 48 to 408.6 mm, and the range is wide, so it also meets the conditions of being widely used. Generally, the flange outer diameter is about 50-840, the bolt thickness is 14-52, and the bolt hole spacing is 4-36.

Pressure dimension specification of Japanese standard carbon steel threaded flange 

Production:

JIS B2220 TR 5K 10A-150A

JIS B2220 TR 10K 10A-150A

JIS B2220 TR 16K 10A-150A

JIS B2220 TR 20K 10A-150A

Threaded flange TH Chinese National Standard: GB/T 9114-2010 ribbed steel pipe flange.

Carbon steel threaded flange can be divided into: (20#, A3, Q235A, Q235B, 20G, 16Mn, ASTM A234WPB, ASTM A105, etc.);

Standard for carbon steel threaded flange:

Chemical standard of China: HG/T20592-2009;

National standard of China: GBT9114-2010;

American Standard, British standard, German standard, Russian standard, Japanese standard, etc. Description of flange thread pressure: carbon steel

PN series: PN0.6Mpa ~ PN4.0MPa

Class series: Class150 ~ Class300;

Material description of carbon steel threaded flange:

Carbon steel flange: ASTM A105,20#, Q235, 16Mn, ASTM A350, LF1, LF2, CL1 / CL2, LF3 CL1 / CL2, ASTM A694, F42, F46, F48, F50, F52, F56, F60, F65, F70.

Standard classification

Specification: 1 / 2 "～ 80" (DN 10-DN5000)

Pressure rating: 0.25Mpa-250Mpa (150LB-2500LB)

Common standards:

National standard of China: GB9112-88 (GB9113 · 1-88 ～ GB9123 · 36-88) American Standard: ANSI B16.5, ANSI 16.47, Class150, 300, 600, 900, 1500 (TH, LJ, SW) Japanese standard: JIS 5K, 10K, 16K, 20K (PL, SO BL)

German standard: DIN2527, 2543, 2545, 2566, 2572, 2573, 2576, 2631, 2632, 2633, 2634, 2638 （PL、SO、WN、BL、TH）

British Standard: BS4504,4506.

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