RING-JOINT Gasket Marking Identification ASME B16.20

[1] Manufacturer’s name.

[2] Gasket number.

[3] Material specification.

Ring Joint Gasket

# Ring Gasket Material Identification Marking's example
1 Soft Iron D R51D
2 5Cr-0.5Mo F5 R51F5
3 Type 304 S 304 R51S304
4 Type 316 S 316 R51S316

Grooved Metal Gasket Marking Identification ASME B16.20

[1] Manufacturer’s name

[2] Flange size

[3] Pressure class

[4] Metal core / Covering material / Centering-ring metal abbreviation (*)

[5] Flange identification

[6] ASME B16.20 designation

(*) See Table GM-3.1-1 of ASME B16.20.

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Spiral Wound Gasket Marking Identification ASME B16.20

[1] Manufacturer’s name

[2] Flange size

[3] Pressure class

[4] Winding / Filler /Centering-and inner-ring metal abbreviation (*)

[7] Flange identification

[8] ASME B16.20 designation

(*) Refer to Color Coding in Table SW-3-1 of ASME B16.20 2017.

 

See other Material Markings.

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