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Abstract
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.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1. Scope
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 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 Pipe and pipe fittings shall be the no-hub (MJ) or the hub and plain end design.
1.4 Pipe and pipe fittings shall be of the sizes specified in Table 1 and Table 2 and Figs. 1-71 or other sizes that shall be permitted to conform to the requirements given herein.
TABLE 1 Tolerances for High-Silicon Iron Hub/Plain-End Pipe
Note 1: 1 in. = 25.4 mm.
Size, in. | Wall Thickness, in. | ID Tolerance, in. | OD Tolerance, in. |
2 | ±1/32 | ±1/32 | ±1/32 |
3 | ±1/32 | ±1/32 | ±1/32 |
4 | ±1/32 | ±1/32 | ±1/32 |
6 | ±1/32 | ±1/32 | ±3/64 |
8 | ±1/32 | ±1/8 | ±1/8 |
10 | ±1/8 | ±1/8 | ±1/8 |
12 | ±1/8 | ±1/8 | ±1/8 |
15 | ±1/8 | ±1/8 | ±1/8 |
TABLE 2 Tolerances for High-Silicon Iron Fittings
Note 1: 1 in. = 25.4 mm.
Size, in. | ID Tolerance, | OD Tolerance, | Stop Lug Depth |
11/2 | ±1/16 | ±1/16 | ±1/16 |
11/2 × 11/2 | ±1/16 | ±1/16 | ±1/16 |
2 | ±1/16 | ±1/16 | ±1/16 |
2 × 11/2 | ±1/16 | ±1/16 | ±1/16 |
2 × 2 | ±1/16 | ±1/16 | ±1/16 |
3 | ±1/16 | ±1/16 | ±1/16 |
3 × 11/2 | ±1/16 | ±1/16 | ±1/16 |
3 × 2 | ±1/16 | ±1/16 | ±1/16 |
3 × 3 | ±1/16 | ±1/16 | ±1/16 |
4 | ±1/16 | ±1/16 | ±1/16 |
4 × 11/2 | ±1/16 | ±1/16 | ±1/16 |
4 × 2 | ±1/16 | ±1/16 | ±1/16 |
4 × 3 | ±1/16 | ±1/16 | ±1/16 |
4 × 4 | ±1/16 | ±1/16 | ±1/16 |
TABLE 3 Chemical Composition
Element | Composition, Weight % | |
Grade 1 | Grade 2 | |
Carbon | 0.65–1.10 | 0.75–1.15 |
Manganese | 1.50 max | 1.50 max |
Silicon | 14.20–14.75 | 14.20–14.75 |
Chromium | 0.50 max | 3.25–5.00 |
Molybdenum | 0.50 max | 0.40-0.60 |
Copper | 0.50 max | 0.50 max |
FIG. 1 No-Hub Pipe (MJ)
Size, in. | J, in. | F, in. | t, in. |
11/2 | 23/16 (2.19) | 84 | 5/16 |
2 | 211/16 (2.69) | 84 | 5/16 |
3 | 349/64 (3.77) | 84 | 5/16 |
4 | 449/64 (4.77) | 84 | 5/16 |
Note 1: 1 in. = 25.4 mm.
FIG. 2 Quarter Bends
Size, in. | D, in. | ID, in. | OD, in. | Stop Lug |
11/2 | 41/4 | 11/2 | 23/16 (2.19) | 11/32 |
2 | 41/2 | 2 | 25/8 (2.62) | 11/32 |
2 × 11/2 | 43/16 × 41/2 | 2 × 11/2 | 25/8 × 23/16 | 11/32 |
3 | 5 | 3 | 33/4 (3.75) | 11/32 |
4 | 51/2 | 4 | 43/4 (4.75) | 11/32 |
Note 1: 1 in. = 25.4 mm.
FIG. 3 Sixth Bends
Size, in. | D, in. | ID, in. | OD, in. | Stop Lug |
11/2 | 3 | 11/2 | 23/16 | 11/32 |
2 | 31/4 | 2 | 25/8 | 11/32 |
3 | 31/2 | 3 | 33/4 | 11/32 |
4 | 33/4 | 4 | 43/4 | 11/32 |
Note 1: 1 in. = 25.4 mm.
FIG. 4 Return Bends
Size, | C, | D, | F, | R, | ID, | OD, | Stop Lug Depth (P), in. |
11/2 | 4 | 2 | 53/32 | 2 | 11/2 | 23/16 | 11/32 |
Note 1: 1 in. = 25.4 mm.
FIG. 5 Double-Branch Quarter Bend
Size, | D, | E, | ID, | OD, | Stop Lug Depth (P), in. |
11/2 | 37/8 | 33/4 | 11/2 | 23/16 | 11/32 |
Note 1: 1 in. = 25.4 mm.
FIG. 6 Eight Bends
Size, | D, | ID, | OD, | Stop Lug Depth (P), in. |
11/2 | 21/2 | 11/2 | 23/16 | 11/32 |
2 | 23/4 | 2 | 25/8 | 11/32 |
3 | 3 | 3 | 33/4 | 11/32 |
4 | 31/4 | 4 | 43/4 | 11/32 |
Note 1: 1 in. = 25.4 mm.
FIG. 7 Sixteenth Bends
Size, | D, | ID, | OD, | Stop Lug Depth (P), in. |
11/2 | 2 | 11/2 | 23/16 | 11/32 |
2 | 21/8 | 2 | 25/8 | 11/32 |
3 | 21/4 | 3 | 33/4 | 11/32 |
4 | 23/8 | 4 | 43/4 | 11/32 |
Note 1: 1 in. = 25.4 mm.
FIG. 8 Long-Sweep Quarter Bends
FIG. 9 Sanitary Y Branches
Size, | D, | F, | G, | ID, | OD, | Stop Lug Depth (P), in. | ||||||||||||
1/2 × 11/2 | 45/8 | 61/2 | 17/8 | 11/2 × 11/2 | 23/16 × 23/16 | 11/32 | ||||||||||||
2 × 11/2 | 47/8 | 61/2 | 15/8 | 2 × 11/2 | 25/8 × 23/16 | 11/32 | ||||||||||||
2 × 2 | 45/8 | 63/8 | 2 | 2 × 2 | 25/8 × 25/8 | 11/32 | ||||||||||||
3 × 11/2 | 55/8 | 61/2 | 11/4 | 3 × 11/2 | 33/4 × 23/16 | 11/32 | ||||||||||||
3 × 2 | 57/8 |
Other Standards National Motor Freight ClassificationASTM Standards 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 ICS Code ICS Number Code 23.040.10 (Iron and steel pipes); 23.040.40 (Metal fittings) UNSPSC Code UNSPSC Code 40170000(Pipe piping and pipe fittings); 31100000(Castings and casting assemblies) Referencing This Standard
DOI: 10.1520/A0861-04R17 Citation Format ASTM A861-04(2017), Standard Specification for High-Silicon Iron Pipe and Fittings, ASTM International, West Conshohocken, PA, 2017, www.astm.org Back to Top |