ASTM D2996

Standard Specification for Filament-Wound "Fiberglass"
(Glass-Fiber-Reinforced Thermosetting-Resin) Pipe
Code Generator for RTRP
Fiberglass Reinforced Pipe (FRP)

This generator outputs the designation code based on ASTM D2996:

There are two designation code generators (look up scripts) using the ASTM D2996 designations. For the first generator, the ASTM D2996 designation code for filament wound FRP fiberglass pipe is generated from the various property values. For the second generator, each property must be supplied by the FRP fiberglass pipe manufacturer to generate the designation code.

The piping property data from ASTM D2996 is shown at the bottom of the page. Therefore, it is possible to look up and 'generate' the ASTM D2996 designation code (or look up the property) 'by hand'. Or the D2996 data can be used to explain how the classification (designation code) for filament wound fiberglass reinforced pipe (FRP) is derived.

BTW: The script was 'debugged' to the best of our ability! However, all filament wound fiberglass pipe designation code and/or fiberglass properties (all output) must be verified with the FRP fiberglass pipe manufacturer when using the values for a piping specification, order form, job sites, etc.

Select Property

Type
Grade
Class
Stress
Ends
Burst
Tensile
Modulus
Deflection

Form Box Generator Site

Basis for Designation Codes

Types

Type I Filament Wound

Grades

Grade 1 -- Glass fiber reinforced epoxy resin pipe.
Grade 2 -- Glass fiber reinforced polyester resin pipe.
Grade 7 -- Glass fiber reinforced furan resin pipe.

Classes

Class A -- No liner.
Class B -- Polyester resin liner (nonreinforced).
Class C -- Epoxy resin liner (nonreinforced).
Class E -- Polyester resin liner (reinforced).
Class F -- Epoxy resin liner (reinforced).
Class H -- Thermoplastic resin liner (specify).
Class I -- Furan resin liner (reinforced).

Hydrostatic Design Basis (HDB) Categories

Cyclic Test		Static Test
Designation	Hoop Stress, psi (MPa)	Designation	Hoop Stress, psi (MPa)
A	2500 (17.2)	Q	5000 (34.5)
B	3150 (21.7)	R	6300 (43.4)
C	4000 (27.6)	S	8000 (55.2)
D	5000 (34.5)	T	10000 (68.9)
E	6300 (43.4)	U	12500 (86.2)
F	8000 (55.2)	W	16000 (110)
G	10000 (68.9)	X	20000 (138)
H	12500 (86.2)	Y	25000 (172)
		Z	31500 (217)

Reference ASTM D2992 for 'exact' ranges.

End Closures

Pipe subjected to axial or end loads use = 1
Free-end type closures use = 2

Short-Term rupture strength

Designation	hoop tensile stress , min ^EC psi (MPA)
0	Unspecified
1	10000 (68.9)
2	30000 (207)
3	40000 (276)
4	50000 (345)
5	60000 (414)
6	70000 (483)

^EC Type of end closure used, that is, free or restrained should be indicated on certification

Longitudinal tensile strength, min

Designation	psi (MPA)
0	Unspecified
1	8000 (55.2)
2	15000 (103)
3	25000 (172)
4	35000 (241)
5	45000 (310)
6	55000 (379)

Longitudinal tensile modulus

Designation	psi x 10⁶ (MPA)
0	Unspecified
1	1 x 10⁶ (6900)
2	2 x 10⁶ (13000)
3	3 x 10⁶ (20700)
4	4 x 10⁶ (27600)
5	5 x 10⁶ (34500)
6	6 x 10⁶ (41400)

Apparent stiffness factor at 5 % deflection, min

Designation	in.³lbf/in.² (mm³kPa)
0	Unspecified
1	40 (4.5)
2	200 (22.6)
3	1000 (113)
4	1500 (170)
5	2000 (226)
6	2500 (282)

Example
RTRP-11AD1-2324

Describes an RTRP with
filament-wound
glass-fiber reinforced, epoxy pipe
no liner
cyclic pressure strength > 5000 psi
using free-end closures
short-term rupture strength > 30000 psi
longitudinal tensile strength > 25000 psi
longitudinal tensile modulus > 2 x 10⁶ psi
apparent stiffness factor > 1500 in.³lbf/in²

Ward Fiberglass Pipe Service
1517 Huntley St.
Benton, Ar 72015
501-776-3985 (Cell: 501-249-1402)
Email http://www.wardfrp.com

Hosted by IBDhost.com