ASTM F492-95

Standard Specification for Propylene and Polypropylene (PP) Plastic-Lined Ferrous Metal Pipe and Fittings (Withdrawn 2004)

SCOPE
1.1 This specification covers factory-made propylene and polypropylene (PP) plastic-lined ferrous metal pipe and fittings, primarily intended for conveying corrosive liquids and gases. Requirements for materials, workmanship, dimensions, design, construction, working pressures and temperatures, test methods, and markings are included.  Note 1-In this specification, propylene plastics cover those materials defined as both polypropylene plastics and propylene plastics in Definitions D883. Both materials are identified as "PP" on the product. Note that this is at variance with Abbreviations D1600, where PP is the abbreviation for polypropylene. Note 2-This specification does not include products coated with PP nor does it define the suitability of PP-lined components in chemical environments.
1.2 The ferrous piping products shall meet the requirements of the relevant specifications listed in 1.2.1. Nominal sizes from 1/2 through 12 in. in Class 125, 150, and 300-psi are covered.  Note 3-The PP sealing faces may prevent achievement of the full pressure rating of the ferrous housings. For pressure limitations, the manufacturer should be consulted. Note 4-Flanged fittings are not available in sizes 1/2 and 3/4.
1.2.1 For Ferrous Pipe:  ASTM Title of Specification Designation Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and A 53 Seamless (Types E and S) Seamless Carbon Steel Pipe for High-Temperature Service A 106 Electric-Resistance Welded Steel Pipe A 135 Electric-Welded Low-Carbon Steel Pipe for the Chemical A 587 Industry Seamless and Welded Austenitic Stainless Steel Pipe A 312 Electric-Resistance Welded Carbon and Alloy Steel Mechanical A 513 Tubing :et
1.2.2 For Ferrous Flanges:  :bt ASTM Title of Specification Designation Gray Iron Castings A 48 Forgings, Carbon Steel, for Piping Components A 105 Gray Iron Castings for Valves, Flanges, and Pipe Fittings A 126 Forgings, Carbon Steel, for General-Purpose Piping A 181 Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, A 182 and Valves and Parts for High-Temperature Service Carbon-Steel Castings Suitable for Fusion Welding for High- A 216 Temperature Service (Grade WCB). Gray Iron Castings for Pressure-Containing Parts for A 278 Temperatures Up to 650
WITHDRAWN RATIONALE
This specification covers factory-made propylene and polypropylene (PP) plastic-lined ferrous metal pipe and fittings, primarily intended for conveying corrosive liquids and gases. Requirements for materials, workmanship, dimensions, design, construction, working pressures and temperatures, test methods, and markings are included.
Formerly under the jurisdiction of Committee F17 on Plastic Piping Systems, this specification was withdrawn in July 2004. This specification was withdrawn in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

General Information

• Status: Withdrawn
• Publication Date: 31-Dec-1994
• Withdrawal Date: 19-Jul-2004
• ICS: 23.040.10 - Iron and steel pipes
• ICS: 23.040.40 - Metal fittings
• Technical Committee: F17 - Plastic Piping Systems
• Drafting Committee: F17.11 - Composite

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
Designation: F 492 – 95
Standard Specification for
Propylene and Polypropylene (PP) Plastic-Lined Ferrous
Metal Pipe and Fittings
This standard is issued under the fixed designation F 492; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope
Forgings, Carbon Steel, for Piping Components A 105
Gray Iron Castings for Valves, Flanges, and Pipe Fittings A 126
1.1 This specification covers factory-made propylene and
ASTM
polypropylene (PP) plastic-lined ferrous metal pipe and fit-
Title of Specification Designation
Forgings, Carbon Steel, for General-Purpose Piping A 181
tings, primarily intended for conveying corrosive liquids and
Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, A 182
gases. Requirements for materials, workmanship, dimensions,
and Valves and Parts for High-Temperature Service
design, construction, working pressures and temperatures, test
Carbon-Steel Castings Suitable for Fusion Welding for High- A 216
Temperature Service (Grade WCB).
methods, and markings are included.
Gray Iron Castings for Pressure-Containing Parts for Tempera- A 278
tures Up to 650°F (345°C)
NOTE 1—In this specification, propylene plastics cover those materials
Ferritic Ductile Iron Pressure-Retaining Castings for Use at A 395
defined as both polypropylene plastics and propylene plastics in Defini-
Elevated Temperatures (60-40-18)
tions D 883. Both materials are identified as “PP” on the product. Note
Ductile Iron Castings (60-40-18, 65-45-12, 80-55-06) A 536
that this is at variance with Abbreviations D 1600, where PP is the
abbreviation for polypropylene. 1.2.3 For Ferrous Fittings:
NOTE 2—This specification does not include products coated with PP
ASTM
nor does it define the suitability of PP-lined components in chemical
Title of Specification Designation
Gray Iron Castings A 48
environments.
Forgings, Carbon Steel, for Piping Components A 105
1.2 The ferrous piping products shall meet the requirements
Gray Iron Castings for Valves, Flanges, and Pipe Fittings A 126
Forgings, Carbon Steel, for General-Purpose Piping A 181
of the relevant specifications listed in 1.2.1. Nominal sizes
Carbon Steel Castings Suitable for Fusion Welding for High- A 216
from ⁄2 through 12 in. in Class 125, 150, and 300-psi are
Temperature Service (Grade WCB)
covered. Piping Fittings of Wrought Carbon Steel and Alloy for Moderate A 234
and Elevated Temperatures Steel Welding Fittings
NOTE 3—The PP sealing faces may prevent achievement of the full
Gray Iron Castings for Pressure-Containing Parts for Tempera- A 278
pressure rating of the ferrous housings. For pressure limitations, the tures up to 650°F (345°C)
Austenitic Steel Castings for High-Temperature Service A 351
manufacturer should be consulted.
Alloy Steel Castings Specially Heat-Treated for Pressure- A 389
1 3
NOTE 4—Flanged fittings are not available in sizes ⁄2 and ⁄4.
Containing Parts Suitable for High-Temperature Service
Ductile Iron Castings (60-40-18, 64-45-12, 80-55-06) A 536
1.2.1 For Ferrous Pipe:
Ferritic Ductile Iron Pressure-Retaining Castings for Use at A 395
ASTM
Elevated Temperatures (60-40-18)
Title of Specification Designation
Wrought Austenitic Stainless Steel Piping Fittings A 403
Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and A53
Seamless (Types E and S)
1.3 The PP-lined flanged pipe and fitting assemblies are
Seamless Carbon Steel Pipe for High-Temperature Service A 106
limited to use from −18 to 107°C (0 to 225°F). For use below
Electric-Resistance Welded Steel Pipe A 135
−18°C (0°F) consult the manufacturer. Use in specific aggres-
Electric-Welded Low-Carbon Steel Pipe for the Chemical A 587
Industry
sive environments may alter the above temperature range. The
Seamless and Welded Austenitic Stainless Steel Pipe A 312
operating temperature limits shall be established by mutual
Electric-Resistance Welded Carbon and Alloy Steel Mechanical A 513
Tubing agreement between the purchaser and the seller.
1.4 The values stated in inch-pound units are to be regarded
1.2.2 For Ferrous Flanges:
as the standard.
ASTM
Title of Specification Designation
2. Referenced Documents
Gray Iron Castings A 48
2.1 ASTM Standards:
D 1238 Test Method for Flow Rates of Thermoplastics by
Extrusion Plastometer
This specification is under the jurisdiction of ASTM Committee F-17 on Plastic
Piping Systems and is the direct responsibility of Subcommittee F17.11 on
Composite.
Current edition approved Sept. 10, 1995. Published November 1995. Originally
published as F 492 – 77. Last previous edition F 492 – 93a. Annual Book of ASTM Standards, Vol 08.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F 492
D 1600 Terminology for Abbreviated Terms Relating to Type II—0.3 to 0.8 g/10 min
Plastics 30 % Glass Fiber Filled—3.0 to 6.0 g/10 min
D 2146 Specification for Propylene Plastic Molding and
The flow rate of PP linings made from Type I and Type II
Extrusion Materials
resins shall not exceed 1.7 g/10 min, or 1.7 times the flow rate
F 412 Terminology Relating to Plastic Piping Systems
of the original resin, whichever is smaller. The melt flow rate
2.2 ANSI Standards:
of PP linings made from 30 % glass filled materials shall not
B 16.1 Cast Iron Pipe Flanges and Flanged Fittings
exceed 7.5 g/10 min, or 1.25 times the melt flow rate of the
B 16.5 Steel Pipe Flanges and Flanged Fittings
original resin, whichever is smaller.
B 16.42 Fittings, Flanges and Valves
4.2 Ferrous Pipe and Fittings:
2.3 Federal Standard:
4.2.1 The mechanical properties of the pipes and fittings
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
shall conform to the requirements of the appropriate specifi-
2.4 Military Standard:
cation of 1.2 except as they are influenced by accepted methods
MIL-STD-129 Marking for Shipment and Storage
of processing in the industry, for example, Van Stone flaring,
bending, swagging, and welding. The carbon steel pipe and
3. Terminology
wrought fittings shall be welded or seamless steel, Schedule 40
3.1 Definitions—Definitions are in accordance with Termi-
or Schedule 80, except that Schedule 30 pipe may be used in 8,
nology F 412, and abbreviations are in accordance with Ter-
10, and 12-in. nominal size. Schedule 20 may also be used for
minology D 1600, unless otherwise indicated.
12-in. nominal size with the agreement of the purchaser.
4.2.2 Finish—The interior surfaces of all housings shall be
4. Materials
clean and free of mold burrs, rust, scale, or other protrusions
4.1 Lining:
that may adversely affect the integrity or performance of the
4.1.1 Material—The lining shall be made from PP resins
lining.
conforming to the requirements of Specification D 2146, ex-
4.3 Back-Up Gaskets:
cept that (1) a maximum of 1 % by weight of colorants is
4.3.1 General—Back-up gaskets shall be used to cover the
permissible for identification, and (2) up to 30 % by weight
pipe end and gasket face of threaded or slip-on flanges unless
glass fiber filler is permissible to modify physical properties.
a full radius or chamfer is provided at the end of the pipe and
Organic colorants, if used, shall be identified in the manufac-
flange. Gaskets may also be required on fittings to provide
turer’s specification.
accommodation or elimination, or both, of sharp corners that
4.1.2 The PP lining shall be made from virgin resin or clean
could damage the lining.
reworked resin which is not thermally degraded.
4.3.2 Material—Plain gaskets meeting the temperature re-
4.1.3 Two types of PP resins are covered in this specifica-
quirements, or perforated metallic gaskets, may be used.
tion. Type I materials are polypropylene homopolymer resins;
Type II are propylene copolymer resins.
5. Requirements
4.1.4 Mechanical Properties—The following table lists
minimum tensile strength and minimum elongation at yield for
5.1 Dimensions:
each PP type when tested in accordance with the requirements
5.1.1 Housings—Housing installation dimensions are as
of Specification D 2146, except that the test specimens shall be
required in the applicable material specification listed in 1.2.
obtained from extruded or molded PP liner. The minimum
5.1.2 Wall Thickness—Fitting linings shall have a minimum
values for tensile strength and elongation shall apply to both
wall thickness of ⁄32 in. (24 mm), and shall have a uniform face
the longitudinal and circumferential directions. 3
thickness of not less than ⁄32 in. (24 mm). Pipe linings shall
Mechanical Properties of PP
have a minimum wall thickness of 0.050 in. (13 mm), and the
Minimum Tensile
flared radius and gasket faces shall have a uniform thickness
PP Type Properties at Yield
not less than 80 % of the wall thickness. Molded faces shall not
Strength, Elongation,
psi (MPa) % 3
be less than ⁄32 in. thick.
Type I (Homopolymer) 4000 (28) 10
5.1.3 PP Face Diameter—The outside diameter of the PP
Type II (Copolymer) 3000 (21) 10
30 % Glass Fiber Filled 2500 (17) 2
covering the gasket face of the flange or the full face of the
lap-joint stub end shall not be less than the diameter specified
4.1.5 Flow Rate—PP resins used to manufacture the PP
in the following table. They shall be concentric within ⁄16in.
liner and molded fittings shall have the following flow rate
Face Diameter
when tested in accordance with Condition L of Test Method
Minimum PP face diameter,
D 1238.
Nominal pipe size, in. in. (mm)
Type I—0.2 to 0.6 g/10 min 11 ⁄8 (48)
1 11
1 ⁄2 2 ⁄16 (68)
23 ⁄16(87)
1 15
2 ⁄2 3 ⁄16 (100)
3 5
34 ⁄8(119)
Discontinued—See 1984 Annual Book of ASTM Standards, Vol 08.02.
4 15
45 ⁄16(151)
Annual Book of ASTM Standards, Vol 08.04.
6 8 (203)
Available from American National Standards Institute, 11 West 42nd Street,
810 ⁄16(256)
13th Floor, New York, NY 10036.
6 10 12 ⁄4(311)
Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
12 14 ⁄8 (365)
Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
F 492
5.1.4 Tolerances—Tolerances for pipe, flanges, and fittings 5°F (107 6 3°C) to determine the ability of the lined
shall be as specified in the following table. Bolt holes in both components to withstand heat aging and temperature cycling.
flanges on a fixed flange spool shall straddle the same center Test a minimum of two pipe spools, tees, and 90-deg elbows in
line to facilitate alignment. Finished lined (plastic face to each size.
plastic face) fabricated fittings shall conform to the nominal
6.1.2 Install companion flanges at the manufacturer’s rec-
face-to-face, etc., as specified in ANSI B 16.1, B 16.5, or B ommended torque value, and affix a thermocouple to the
16.42 with the applicable tolerances.
ferrous housing to measure the temperature. Pipe spools shall
be at least 3 ft (1 m) long. After3hinan oven at 225 6 5°F
Tolerances for Pipe, Flanges, and Fittings, in.
Pipe Tolerance
(107 6 3°C) as indicated by the thermocouple, air cool the
Length 6 ⁄8 (32 mm)
lined components to 85°F (29°C) maximum. Repeat this test
Fixed flange bolt hole alignment 6 ⁄16 (16 mm)
Flange perpendicularity (with pipe centerline) ⁄32 in./ft (80 mm/m) of diameter for a total of three cycles.
Flanges and Fittings
6.1.3 Inspect the lined pipe and fittings after each cycle for
All dimensions in accordance with ANSI
distortion or cracks in the lining. At the completion of the third
B16.1, B16.5, or B16.42
cycle, subject specimens to either the hydrostatic or electro-
5.2 Flange Construction:
static test described in 8.1 or 8.2.
5.2.1 Screw-type flanges shall be secured in position to
6.2 Steam-Cold Water Cycling Test:
prevent inadvertent turning of the flange.
6.2.1 Subject representative production samples of the lined
5.2.2 Socket-type flanges shall be fully back-welded to the
pipe and fittings to steam-cold water cycling to determine the
pipe housing and the inside surfaces of the socket flanges shall
ability of the lined components to withstand rapid temperature
be welded and ground smooth.
changes. Test a minimum of two pipe spools, tees, and 90-deg
5.2.3 Slip-on flanges shall be fully back-welded.
elbows in each size.
NOTE 5—No welding shall be done on lined components.
6.2.2 Assemble the lined pipe and fittings with suitable
blind flanges having provision for the introduction of steam,
5.2.4 Lap-joint (or Van Stone) flanged ends may be manu-
air, or cold water, and for drainage. Install the flanges using the
factured by standard forming techniques or by using fully
manufacturer’s recommended torque value. Pipe spool length
welded stub ends or collars. Lap-joints shall not contain any
shall be 10 ft (3 m) minimum. Mount the test specimens in
cracks or buckles.
such a manner as to permit complete drainage and then subject
NOTE 6—The use of lap-joint flanges in a piping system may simplify
them to 100 steam-cold water cycles, each of which shall
alignment.
consist of the following in the sequence given:
5.3 Workmanship:
6.2.2.1 Circulate 4 6 1-psig (28 6 7-kPa) saturated steam
5.3.1 Pipe and fitting linings shall show no evidence of
through the specimens until the ferrous housing skin tempera-
pinholes, porosity, or cracks when inspected in accordance
ture adjacent to the flange at the outlet end of the test specimen
with 5.4.2. The linings shall fit snugly inside the pipe and
has been maintained at the maximum stabilized temperature for
fitting housings. Any bulges or other obvious indication of poor
30 min.
contact with the housing shall be cause for rejection.
6.2.2.2 Close off steam.
5.3.2 The gasket face portion of the linings shall be free of
6.2.2.3 Vent and introduce air to purge the specimens for a
surface defects that could impair sealing effectiveness.
minimum of 1 min.
Scratches, dents, nicks, or tool marks on the gasket surface
6.2.2.4 Circulate water at a maximum temperature of 77°F
shall not be deeper than 10 % of the wall thickness.
(25°C). Circulate the cooling water until the ferrous housing
5.4 Performance:
skin temperature adjacent to the flange at the outlet end of the
5.4.1 Qualification—The lined pipes and fittings must be
test specimen measures 100°F (38°C) maximum.
capable of meeting the requirements specified in Section 6.
6.2.2.5 Drain and introduce air to purge the specimens for a
5.4.2 Inspection:
minimum of 1 min, making certain that specimens are com-
5.4.2.1 Each lined pipe and fitting, prior to shipment, shall
pletely drained.
be subjected to a hydrostatic test or electrostatic test, or both,
6.2.3 There shall be no evidence of leakage from the venting
as specified in
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