Name: Grooved Steel Pipe
Brand: Shengtian Group
Availability: InStock
Rating: 5 (1 reviews)

Description

Grooved Steel Pipe

　　Grooved pipe is a type of pipe with a special design for pipe connections. Its main feature is that a circular groove is machined into the end of the pipe, allowing it to be connected to another pipe using specialized grooved fittings (such as grooved couplings and grooved connectors), without the need for welding or threaded connections.Grooved pipes are widely used in fire protection systems, HVAC, water supply and drainage, industrial piping, and oil & gas auxiliary systems.

Outer Diameter	Round pipe: 20~610mm
Wall Thickness	Round pipe: 0.8~18.0mm
Length	3-12M according to client requirement
Standard	ASTM A795, ASTM A53, EN10255, EN10219, EN10210, EN39, BS1387, ASTM A500, ASTM A36, API 5L, ISO 65, JIS G3444, JIS3452, DIN 3444, ANSI C80.1, AS 1074, GB/T 3091
Material	Gr.A, Gr.B, Gr.C, S235, S275, S355, A36, SS400, Q195, Q235, Q345
Certificate	ISO 9001:2008,SGS, BV, CCIC etc
Finish of pipe	Hot dipped galvanized with zinc 220~260g/m2; Pre-Galvanized with zinc 30~150g/m2 Painted with red/black/varnish lacquer; Oil on the surface to prevent rust; Bare pipe without painting: Epoxy painting/FBE coating/3PE coating
Pipe End	Plain end/ Bevel end; Groove end; Joint with flange; Threaded on two ends, one end with coupling, one end with plastic cap
Marking	As per client requirement or mill standard Painting method: Spray white paint
Packing	OD not less than 273mm: Loose packing,piece by piece. OD less than 273mm: In hexagonal seaworthy bundles packed by steel strips. small sizes nested into big sizes.
Techinical	ERW (high - frequency welded)
Trade Term	FOB, CFR, CIF, EXW, FCA
Payment Term	T/T, LC
Delivery Time	15-45 days (based on quantity) after receiving advanced payment by T/T or LC .

Grooved Steel Pipe Size Specifications

NPS (inch)	Outside Diameter	Thickness Sch10	Thickness Sch40	Ends
NPS (inch)	mm	mm	mm	Ends
1/2"	21.3		2.77	Grooved, Threaded, Plain ends Expoy red painted, Power coated, Ral3000, Ral3001 Black and Galvanized finish
3/4"	26.7	2.11	2.87
1"	33.7	2.77	3.38
1.1/4"	42.2	2.77	3.56
1.1/2"	48.3	2.77	3.68
2"	60.3	2.77	3.91
2.1/2"	73	3.05	5.16
3"	88.9	3.05	5.49
3.1/2"	101.6	3.05	5.74
4"	114.3	3.05	6.02
5"	141.3	3.4	6.55
6"	168.3	3.4	7.11
8"	219.1	4.78	7.04
10"	273.1	4.78	7.8

Constituent Of The Material

Grade	C	Mn	Si	S	P	UTS(MPa)	YS(MPa)	EI(%)
Q235B	0.12-0.20	0.30-0.70	0.30	0.045	0.045	375-500	235	26
Q345B	0.12-0.20	1.20-1.60	0.20-0.55	≤0.045	≤0.045	510-600	345	22
20#(GB)	0.17-0.23	0.38-0.65	0.17-0.37	≤0.030	≤0.030	410-550	≥245	≥20

Manufacturing Process of Grooved Steel Pipe

　　The production of grooved pipe follows a strict quality-controlled process to ensure dimensional accuracy and groove consistency.

　　Manufacturing steps:

　　1.Raw Material Selection：High-quality carbon steel or stainless steel pipes are selected, commonly conforming to ASTM A53, ASTM A106, or equivalent standards.

　　2.Pipe Cutting：Pipes are cut to required lengths using precision cutting equipment to ensure square ends.

　　3.Groove Forming：Pipe ends are grooved by cold roll grooving or cut grooving machines, forming a uniform and accurate groove profile without damaging pipe integrity.

　　4.Surface Treatment：Depending on application requirements, pipes may undergo:

　　5.Black finish ：Hot-dip galvanizing， Painting or epoxy coating

　　6.Inspection & Testing：Groove dimensions, pipe OD, wall thickness, and surface quality are inspected. Pressure and sealing compatibility are verified when required.

　　7.Packing & Delivery：Pipes are bundled, capped, and packed for safe transportation.

How are Roll Grooved Pipes and Cut Grooved Pipes Different?

　　Roll Groove

　　Roughly 90 percent of pipes grooved today utilize roll grooving technology due to the ease of the grooving process while maintaining optimal joint performance. The pipe can be roll grooved in 30 to 40 seconds per square inch compared to one minute per inch using a cut groove. The roll grooving process also removes the need for cutting oil and the hassle of cleaning up the metal shavings that are removed from the pipe during the cut grooving process.

　　Cut Groove

　　While roll grooving is very popular, the tried and true cut groove proves very useful in many situations. For example, if the pipe wall is too thick, cut grooving is an option. Or if the pipe is internally lined or coated, cut grooving is recommended to keep the integrity of the lining and coating. Even the pipe material can dictate the groove style, with some material of pipe needing to be cut grooved, such as ductile iron. Regardless if you choose to roll groove or cut groove, Shengtian Group offers a solution to your pipe joining needs

Roll groove as ANSI/AWWA C606

Nominal size		Pipe OD			Min wall Thickness (T)	Gasket seat (A) -0.76/+0.38	Groove width (B) -0.38/+0.76	Groove diameter (C)		Groove depth (D)	Max flaring diameter (F)
Nominal size		OD	Tolerance (mm)		Min wall Thickness (T)	Gasket seat (A) -0.76/+0.38	Groove width (B) -0.38/+0.76	Average	Tolerance +0.00	Groove depth (D)	Max flaring diameter (F)
Inch	DN	mm	-	+	mm	mm	mm	mm	mm	mm	mm
1"	25	33.4	0.33	0.33	1.65	15.88	7.14	30.23	-0.38	/	/
1-1/4"	32	42.2	0.41	0.41	1.65	15.88	7.14	38.99	-0.38	/	/
1-1/2"	40	48.3	0.48	0.48	1.65	15.88	7.14	45.09	-0.38	/	/
2"	50	60.3	0.61	0.61	1.65	15.88	8.74	57.15	-0.38	/	/
2-1/2"	65	73.0	0.74	0.74	2.11	15.88	8.74	69.09	-0.38	/	/
3"	80	88.9	0.79	0.89	2.11	15.88	8.74	84.94	-0.38	/	/
4"	100	114.3	0.79	1.14	2.11	15.88	8.74	110.08	-0.38	/	/
5"	125	141.3	0.79	1.42	2.77	15.88	8.74	137.03	-0.38	/	/
6"	150	168.3	0.79	1.60	2.77	15.88	8.74	163.96	-0.38	/	/
8"	200	219.1	0.79	1.60	2.77	19.05	11.91	214.40	-0.51	/	/
10"	250	273.1	0.79	1.60	3.40	19.05	11.91	268.27	-0.64	/	/
12"	300	323.9	0.79	1.60	3.96	19.05	11.91	318.29	-0.64	/	/

Roll groove as ISO 6182-12

Nominal size		Pipe OD			Min wall Thickness (T)	Gasket seat (A) ±0.76	Groove width (B) ±0.76	Groove diameter (C)		Groove depth (D)	Max flaring diameter (F)
Nominal size		OD	Tolerance (mm)		Min wall Thickness (T)	Gasket seat (A) ±0.76	Groove width (B) ±0.76	Actual	Tolerance +0.00	Groove depth (D)	Max flaring diameter (F)
Inch	DN	mm	-	+	mm	mm	mm	mm	mm	mm	mm
1"	25	33.7	0.33	0.33	1.65	15.88	7.14	30.23	-0.38	1.73	36.3
1-1/4"	32	42.4	0.41	0.41	1.65	15.88	7.14	38.99	-0.38	1.70	45.0
1-1/2"	40	48.3	0.48	0.48	1.65	15.88	7.14	45.09	-0.38	1.60	51.1
2"	50	60.3	0.61	0.61	1.65	15.88	8.74	57.15	-0.38	1.57	63.0
2-1/2"	65	73.0	0.74	0.74	2.11	15.88¹	8.74²	69.09	-0.46	1.95	75.7
2-1/2"	65	76.1	0.76	0.76	2.11	15.88	8.74	72.26	-0.46	1.92	78.7
3"	80	88.9	0.79	0.89	2.11	15.88	8.74	84.94	-0.46	1.98	91.4
4"	100	114.3	0.79	1.14	2.11	15.88	8.74	110.08	-0.51	2.11	116.8
5"	125	139.7	0.79	1.42	2.77	15.88	8.74	135.48	-0.51	2.11	142.2
5"	125	141.3	0.79	1.42	2.77	15.88¹	8.74²	137.03	-0.38	2.13	143.8
6"	150	165.1	0.79	1.60	2.77	15.88	8.74	160.78	-0.56	2.16	167.6
6"	150	168.3	0.79	1.60	2.77	15.88¹	8.74²	163.96	-0.56	2.17	170.9
8"	200	219.1	0.79	1.60	2.77	19.05	11.91	214.4	-0.64	2.35	223.5
10"	250	273.0	0.79	1.60	3.40	19.05	11.91	268.28	-0.69	2.36	277.4
12"	300	323.9	0.79	1.60	3.96	19.05	11.91	318.29	-0.76	2.80	328.2