I-Rod® / Nu-Bolt^™ Specs

Delatailed specifications for I-Rod Material and Nu-Bolt assembly

U-bolt dimensions

Nominal pipe size		Bolt stock Ø”		U-Bolt height		thread length		Inside gap		Leg center		I-Rod length		I-ROD hole Ø		I-ROD size		I-ROD height
in	mm	in	mm	in	mm	in	mm	in	mm	in	mm	in	mm	in	mm	in	mm	in	mm
1/2"	15	1/4"	6	3-1/4	83	2-3/8	60	15/16	24	1-3/16	31	2-1/2	64	3/8	10	3/4	19	5/16	8
3/4"	20			3-5/16	85	2-3/8	60	1-1/8	29	1-3/8	35	3	76	3/8	10	3/4	19	5/16	8
1”	25			3-7/16	87	2-3/8	60	1-3/8	35	1-5/8	41	3	76	3/8	10	3/4	19	5/16	8
1”	25	3/8”	10	3-7/16	87	2-3/8	60	1-3/8	35	1-3/4	44	3	76	1/2	13	1	25	7/16	11
1-1/4"	32			3-3/4	95	2-1/2	64	1-3/4	43	2-1/8	54	3-1/2	89	1/2	13	1	25	7/16	11
1-1/2”	40			4	102	2-1/2	64	2	51	2-3/8	60	4	102	1/2	13	1	25	7/16	11
2”	50			4.5	114	2-1/2	64	2-7/16	62	2-13/16	71	4-1/2	114	1/2	13	1	25	7/16	11
2-1/2"	65	1/2”	13	5-1/4	134	3	76	2-15/16	75	3-7/16	87	5	127	5/8	16	1	25	7/16	11
3”	80			5-13/16	148	3	76	3-9/16	90	4-1/16	103	6	152	5/8	16	1	25	7/16	11
4"	100			6-13/16	173	3	76	4-9/16	116	5-1/16	129	7	178	5/8	16	1	25	7/16	11
5"	120			7-13/16	198	3	76	5-5/8	143	6-1/8	156	8	203	5/8	16	1	25	7/16	11
6"	150	5/8”	16	9-1/2	241	3-3/4	95	6-3/4	171	7-3/8	187	9	229	11/16	18	1	25	7/16	11
8"	200	5/8”	16	11-1/2	292	3-3/4	95	8-3/4	222	9-3/8	238	11	279	11/16	18	1	25	7/16	11
10"	250	3/4”	19	13-13/16	351	4	102	10-7/8	279	11-5/8	295	13-1/2	343	7/8	22	1-1/2	38	11/16	18
12"	300	7/8”	22	16-1/16	408	4-1/4	108	12-7/8	327	13-3/4	349	16	406	1	25	1-1/2	38	11/16	18
14"	350			17-5/16	440	4-1/4	108	14-1/8	359	15	381	17	432	1	25	1-1/2	38	11/16	18
16"	400			19-5/16	490	4-1/4	108	16-1/8	410	17	432	19	483	1	25	1-1/2	38	11/16	18
18"	450	1”	25	21-11/16	551	4-3/4	121	18-1/8	461	19-1/8	486	21-1/2	546	1-1/8	29	1-1/2	38	11/16	18
20"	500			23-11/16	602	4-3/4	121	20-1/8	511	21-1/8	537	23-1/2	597	1-1/8	29	1-1/2	38	11/16	18
24"	600			27-11/16	703	4-3/4	121	24-1/8	613	25-1/8	638	27-1/2	699	1-1/8	29	1-1/2	38	11/16	18
28"	700			31-11/16	805	4-3/4	121	28-1/8	715	29-1/8	740	31-1/2	800	1-1/8	29	1-1/2	38	11/16	18
30"	750			33-11/16	856	4-3/4	121	30-1/8	765	31-1/8	791	33.5	851	1-1/8	29	1-1/2	38	11/16	18
36"	900			39-11/16	1008	4-3/4	121	36-1/8	918	37-1/8	943	39.5	1003	1-1/8	29	1-1/2	38	11/16	18

I-Rod specifications

Download Technical Datasheet

Material		I-Rod (White)		I-Rod HT (Amber)		PEEK (Tan)
Property value	ASTM Test	Metric	Imperial	Metric	Imperial	Metric	Imperial
Density, 73º F (23º C)	D792	1.41 g/cm³	0.0509 lb/in³	1.28 g/cc	0.0462 lb/in³	1.31 g/cm³	0.047 lb/in³
Tensile strength, 73º F (23º C)	D638	64.8 MPa	9,400 psi	114 MPa	16,500 psi	110 MPa	16 ksi
Tensile modulus of elasticity, 73º F (23ºC)	D638	2.62 GPa	380 ksi	3.45 GPa	500 ksi	3.44 GPa	500 ksi
Elongation (at break), 73º F (23ºC)	D638	30-60%	30-60%	30-60%	30-60%	20%	20%
Flexural modulus of elasticity, 73º F (23ºC)	D790	2.76 GPa	400 ksi	3.45 GPa	500 ksi	6.89 GPa	1000 ksi
Flexural strength, 73º F (23ºC)	D790	82.7 MPa	13 ksi	138 MPa	20 ksi	172 MPa	25 ksi
Compressive strength, 10% def, 73º F (23ºC)	D695	103 MPa	15 ksi	152 MPa	22 ksi	137 MPa	20 ksi
Coefficient of friction (dry vs steel)	N/A QTM 55007	0.25	0.25	0.42	0.42	0.40	0.40
IZOD Impact (notched), 73º F (23ºC)	D256	.534 J/cm	1 ft-lb/in of notch	.267 J/cm	0.5 ft-lb/in of notch	.534 J/cm	1.0 ft-lb/in of notch
Hardness, Rockwell, 73º F (23ºC) M/R	D785	88/120	88/120	112/125	112/125	100/126	M103
Maximum service temperature	(Long Term)	83 ºC	181ºF	171º C	340º F	249 ºC	480 ºF
Deformation under load	D621	1.0%	1.0%	-	-	-	-
Melting point	D3418	168º C	329º F	210º C	410º F	340 º C	644 º F
Coefficient of linear expansion	E831	97.2 µm/m/ºC	54 µin/in/ºF	55.8 µm/m/ºC	31 µin/in/ºF	-	-
Heat deflection temperature, 264 psi	D648	104 ºC	220ºF	204 ºC	400ºF	160 ºC	320 ºF
Flammability rating	VL94	HB	HB	V-0	V-0	V--0	V--0
Dielectric strength, short term	D149	16.5 kV/mm	420 V/mil	32.7 kV/mm	830 V/mil	18.9 kV/mm	480 V/mil-

Property Value	ASTM Test	Metric	Imperial
Max continuous operating temp		110 °C	230 °F
Min continuous operating temp		-55 °C	-67 °F
Tensile strength	D412 ISO 37	14.47 MPa	2,100 psi
Elongation	D412 ISO 37	550%	550%
Longitudinal change	D2671	+1%, -10%	+1%, -10%
Specific gravity	D792 ISO/R1183	1.1	1.1
Elongation after heat aging (168 hrs @ 150º C)	D2671 ISO 37	500%	500%
Heat shock (4 hrs @ 225º C)	D2671	No cracking /flowing	No cracking /flowing
Low-temperature flexibility (4 hrs @ -55º C)	D2671	No cracking	No cracking
Hardness	D2240	50D	50D
Dielectric strength	D149 IEC 243	500 KV/mm	12,700 volts/mil
Dielectric voltage withstand (2500V, 6-Hz, 1 min)	UL 486D	No breakdown	No breakdown
Volume resistivity	D257	1016 Ohm/cm	1016 Ohm/cm
Fluid resistance	MIL-DTL 23053/5, ISO 1817 ISO 37	Good to excellent	Good to excellent
Copper corrosion	D2671	No corrosion	No corrosion
Water absorption	D570	0.1%	0.1%
Fungus resistance	G21	No growth	No growth
Adhesive softening point	E28	92 +/- 5 °C	197 +/- 10 ºF
Adhesive peel strength (300mm/min @ 23º C)	D1000	-	-
-to steel, alum, P.E.	D1000	61 N/cm	35 pli
-to PVC	D1000	35 N/cm	20 pli
Adhesive lap shear (1 in / min at 23º C)	D1002 mod	0.86 MPa	125 psi
Adhesive blocking (30º C)	D1146	No blocking	No blocking
Water penetration	STM 706	No penetration after 286 hrs minimum of cont. immersion

Nominal pipe size		Bolt stock Ø”		Max recommended load @ 650ºF		Max recommended load @ 750ºF		Approximate weight with nuts (does not include I-Rod)
in	mm	in	mm	lbs.	kg	lbs.	kg	lbs.	kg
1/2"	15	1/4"	6	485	220	435	195	0.11	0.05
3/4"	20							0.12	0.06
1”	25							0.12	0.06
1”	25	3/8”	10	1220	550	1090	495	0.28	0.13
1-1/4"	32							0.30	0.14
1-1/2”	40							0.33	0,15
2”	50							0.73	0.33
2-1/2"	65	1/2”	13	2260	1025	2020	915	0.78	0.35
3”	80							0.84	0.38
4"	100							0.90	0.41
5"	120							1.00	0.45
6"	150	5/8”	16	3620	1645	3230	1465	2.00	0.90
8"	200	5/8”	16	3620	1645	3230	1465	2.30	1.04
10"	250	3/4”	19	5420	2460	4830	2195	4.90	2.23
12"	300	7/8”	22	7540	3425	673	3050	7.70	3.50
14"	350							8.30	3.77
16"	400							9.20	4.18
18"	450	1”	25	9920	4500	8850	4020	13.5	6.14
20"	500							14.6	6.63
24"	600							16.9	7.68
28"	700							18.0	8.18
30"	750							19.1	8.68
36"	900							23.2	10.54

U-bolt dimensions

I-Rod specifications

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