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Flange Standard

ASME  Flange standard

Serial number

Standard

Standard name

1

ASME B1.2-2003(R2008)

Uniform British thread

2

ASME B1.20.1-2013

Universal pipe thread (inch)

3

ASME B16.1-2015

Cast iron pipe flange and flange key (25,125 and 250 pounds)

4

ASME B16.5-2013

Flange and flange fittings

5

ASME B16.9-2012

Factory forged steel welded pipe fittings

6

ASME B16.10-2009

Valve structure length

7

ASME B16.11-2016

Socket welded and screwed forged tubes

8

ASME B16.20-2012

Pipe flange with metal gasket (change pads, wrap-type gaskets and coated gaskets)

9

ASME B16.21-2016

Pipe flange with non-metallic flat gasket

10

ASME B16.25-2012

Butt end

11

ASME B16.34-2013

Flange, thread and Han linked valve

12

ASME B16.42-2016

Ductile iron pipe flange and flange fittings (150 and 300 pounds)

13

ASME B16.47-2011

Large diameter steel flange (nominal diameter NPS26-NPS60)

14

ASME B18.2.2-2.15

Square nuts and hex nuts (inch)

15

ASME B36.10M-2004(R2010)

Welded and rolled seamless steel tubes

16

ASME B36.19-2004(R2010)

stainless steel pipe

17

ASME B46.1-2002

Surface texture (surface roughness, waviness and morphology)

18

ASME B1.13M-2005

M tooth type metric thread

19

ASME B1.20.3-1976(R1998)

Dry sealing pipe thread (inch)

20

ASME B1.20.7-1991(R1998)

Hose connector thread (inch)

21

ASME B1.5-1997(R2014)

Trapezoidal thread

22

ASME B1.8-1998(R2016)

Short-tooth trapezoidal thread

23

ASME B16.3-1998

Malleable cast iron threaded fittings 150 and 300 pound

24

ASME B16.4-1998

Gray cast iron threaded pipe 125 and 250 pounds

25

ASME B16.14-1991

Steel pipe plug, bushing and waterproof nut (with pipe thread)

26

ASME B16.18-2001(R1994)

Copper alloy brazed joints pressure pipe fittings

27

ASME B16.22-2001

Forged copper and copper alloy brazed connection pressure pipe fittings

28

ASME B16.39-1998

Malleable cast iron threaded pipe union - Class150, 250 and 300

29

ASME B16.104-1998 FCI 70-2-1998

Leak control valve seat

30

ASME B31.1-2004

Power pipe

31

ASME/ANSI PTC 25.3-1976

Safety valve performance test specification