Abstract： ASME A112.19.3:2017 pdf download.Stainless steel plumbing fixtures. 4 General requirements 4.1 Materials With the exception of laboratory sinks, which shall be made of type 316 stainless stee’ alloy, stainless steel plumbing fixtures shal...

ASME A112.19.3:2017 pdf download.Stainless steel plumbing fixtures.

4 General requirements

4.1 Materials

With the exception of laboratory sinks, which shall be made of type 316 stainless stee’ alloy, stainless

steel plumbing fixtures shall be made of type 201, 202, 301, 302, 304, 316, or 430 stainless steel alloys.

Note: These stainless steel alloy types ore specified in AS TM 4240/A240M.

4.2 Stainless steel thickness

4.2.1 Lavatories and sinks

4.2.1.1 General

The thickness of stainless steel sheet for lavatories and kitchen, bar, laboratory, laundry, and utility sinks

shall comply with Clause 4.2.1.2 (before drawing) or 42.1.3 (after drawing).

4.2.1.2 Before drawing

The minimum thickness shall be based on bowl depth as specified in Table 1.

4.2.1.3 After drawing

The minimum thickness after fabrication shall be as follows:

a) vertical surfaces: 0.559 mm (0.022 in).

b) corners: 0,508 mm (0.020 in), and

c) horizontal surfaces: 0.635 mm (0.025 in).

For Items a) and b), the thickness shall be determined by taking the average of six measurements of surface or

corner thickness. For Item C), thickness shall be determined by taking the average of three measurements from the bottom of the fixture and three from the flat surfaces of the flange.

4.2.2 Other fixtures

The thickness of stainless steel sheet for fixtures not specified in Clause 4.2.1.1 shall be determined in

accordance with Clause 4.2.1.3.

4.3 Tolerances

Unless otherwise specified in this Standard, the tolerance on dimensions of 200 mm (8 In) and greater shall be ± 3%. The tolerance on dimensions less than 200 mm (8 In) shall be ± 5%.

In this Standard, dimensions specified as “minimum” or “maximum” shall not be reduced below the specified

minimum or increased above the specified maximum by application of a tolerance. If a dimensional range is

specified and the word “minimum” or “maximum” does not appear, the upper and lower limits shall not be

considered critical and the appropriate tolerance shall apply.

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