This specification covers high-silicon iron pipe and pipe fittings intended for corrosion-resistant service for both above- and below-grade construction. The castings shall be true to pattern, reasonable smooth, and free from defects that would make the castings unfit for the use for which they are intended. The material shall conform to the chemical composition requirements specified. All centrifugally cast high-silicon iron pipe shall be supplied in the as-cast condition. All other pipe and fittings shall be supplied in the stress-relieved condition; the stress relieving procedures are presented. Acid-proof joints for hub/plain-end pipe shall require the use of an acid-proof rope packing. No-hub pipe and fittings shall require a special acid resistant mechanical joint coupling. High-silicon iron pipe can be cut with either manual or hydraulic snap cutters. Hydrostatic testing shall be conducted on all castings.
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1.1 This specification covers high-silicon iron pipe and pipe fittings intended for corrosion-resistant service for both above- and below-grade construction.
1.2 Pipe and pipe fittings shall be the no-hub (MJ) or the hub and plain end design.
1.3 Pipe and pipe fittings shall be of the sizes specified in and and or other sizes that shall be permitted to conform to the requirements given herein.
1.3.1 PipeNo-hub (MJ) (Fig. 1).
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A518/A518M Specification for Corrosion-Resistant High-Silicon Iron Castings
E350 Test Methods for Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron
E351 Test Methods for Chemical Analysis of Cast Iron--All Types
corrosion resistant; fittings; high-silicon iron; hubless; hub/plain-end; no-hub; plain-end; Centrifugal drum traps; Corrosive service applications--pipe; Double branch quarter/sanitary bend; Eighth bend; High-silicon iron pipe/fittings; Iron pipe/fittings--specifications; Quarter bends; Return bends; Sanitary drainage materials/applications--specifications; Silicon--corrosion-resistant; Sixteenth bends; Swivel traps; Traps; Type “Mu” pipe ;
ICS Number Code 23.040.10 (Iron and steel pipes); 23.040.40 (Metal fittings)
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