ASTM A795 GR.B ERW STEEL PIPE

Commodity name： ASTM A795 GR.B ERW STEEL PIPE

ASTM A795 is the standard specification for black and hot-dipped galvanized welded and seamless steel pipe. This pipe is used for fire sprinkler systems because it is durable and resistant to corrosion.

subcategory：

ERW Pipe

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PRODUCT

Brisk Metalwork Co.,Ltd focus on produce and supply hollow section and steel pipe

Dimensions, Weights, and Test Pressure Chart

TABLE 1 Dimensions, Weights, and Test Pressure for Light-Weight Fire Protection ASTM A795 Pipe - Schedule 10A

NPS Designator	Outside Diameter		Nominal Wall Thickness		Weight Plain End		Test Pressures
	Outside Diameter		Nominal Wall Thickness		Weight Plain End		Fumace-Welded		Electric-Resistance Weld
	in.	mm	in.	mm	lb/ft	kg/m	psi	MPa	psi	MPa
3/4	1.050	26.7	0.08.	2.11	0.86	1.28	500	3.45	700	4.83
1	1.315	33.4	0.109	2.77	1.4	2.1	500	3.45	700	4.83
1 1/4	1.660	42.1	0.109	2.77	1.81	2.72	500	3.45	1000	6.89
1 1/2	1.900	48.3	0.109	2.77	2.08	3.12	500	3.45	1000	6.89
2	2.375	60.3	0.109	2.77	2.64	3.96	500	3.45	1000	6.89
2 1/2	2.875	73	0.12	3.05	3.53	5.3	500	3.45	1000	6.89
3	3.500	88.9	0.12	3.05	4.33	6.5	500	3.45	1000	6.89
3 1/2	4.000	101.6	0.12	3.05	4.97	7.46	500	3.45	1200	8.27
4	4.500	114.3	0.12	3.05	5.61	8.36	500	3.45	1200	8.27
5	5.563	141.3	0.134	3.4	7.77	11.58	B	B	1200	8.27
6	6.625	168.3	0.134	3.4	9.29	13.84	B	B	1000	6.89
8	8.625	219.1	0.188C	4.8	16.94	25.41	B	B	800	5.51
10	10.750	273	0.188C	4.8	21.21	31.82	B	B	700	4.83

TABLE 2 Dimensions, Weights, Test Pressures for Standard-Weight Fire Protection ASTM A795 Pipe - Schedule 30 and Schedule 40

NPS Designator	Outside Diameter		Nominal Wall Thickness C		Weight Plain End		Weight Thread and Couplings A		Test Pressure
	Outside Diameter		Nominal Wall Thickness C		Weight Plain End		Weight Thread and Couplings A		Fumace-Welded		Electric-Resistance Weld
	in.	mm	in.	mm	lb/ft	kg/m	lb/ft	kg/m	psi	MPa	psi	MPa
1/2	0.840	21.3	0.109	2.77	0.85	1.27	0.85	1.27	700	4.83	700	4.83
3/4	1.050	26.7	0.113	2.87	1.13	1.68	1.13	1.68	700	4.83	700	4.83
1	1.315	33.4	0.133	3.38	1.68	2.5	1.68	2.5	700	4.83	700	4.83
1 1/4	1.660	42.1	0.14	3.56	2.27	3.38	2.28	3.38	1000	6.89	1000	6.89
1 1/2	1.900	48.3	0.145	3.68	2.72	4.05	2.73	4.06	1000	6.89	1000	6.89
2	2.375	60.3	0.154	3.91	3.65	5.43	3.68	5.48	1000	6.89	1000	6.89
2 1/2	2.875	73	0.203	5.16	5.79	8.62	5.82	8.66	1000	6.89	1000	6.89
3	3.500	88.9	0.216	5.49	7.58	11.28	7.62	11.34	1000	6.89	1000	6.89
3 12	4.000	101.6	0.226	5.74	9.11	13.56	9.2	13.68	1200	8.27	1200	8.27
4	4.500	114.3	0.237	6.02	10.79	16.06	10.9	16.22	1200	8.27	1200	8.27
5	5.563	141.3	0.258	6.55	14.62	21.76	14.81	22.04	B	B	1200	8.27
6	6.625	168.3	0.28	7.11	18.97	28.34	19.18	28.66	B	B	1200	8.27
8	8.625	219.1	0.277C	7.04	24.7	36.9	25.55	38.17	B	B	1200	8.27
10	10.750	273	0.277C	7.8	34.24	51.16	35.75	53.41	B	B	1000	6.89

Chemical Composition and Mechanical Properties

Steel Grade	Chemical Composition %				Mechanical Properties
	C	Mn	P	S	Yield Strength ReH Mpa	Tensile Strength Rm Mpa	Elongation A
	Max	Max	Max	Max	Min	Min	%
S195	0.30	1.20	0.035	0.035	240	415	≥ 25%

Welding: ERW Grade B pipes require post-weld heat treatment to 1000°F (540°C) to eliminate untempered martensite.

Applicant Field

Core Applications: Automatic sprinkler systems for buildings, factories, shopping malls, and warehouses

Other Applications: Fire protection networks for industrial plants, commercial complexes, and data centers

Water treatment facilities and general industrial low-pressure fluid transport

Hot-dip galvanized/black pipes, compatible with UL/FM certified fire protection systems

Core Advantage

Brisk Steel Group is rooted in a culture of "technology as the backbone, quality as the soul, and customers as the heart." Through relentless innovation, global expansion, and a commitment to responsibility, we strive to become a trusted global partner and a technological benchmark in the steel manufacturing industry.

Craftsmanship with Precision

We adhere to a rigorous quality control system that spans the entire production process—from raw material procurement and manufacturing to product delivery—ensuring the highest standards of excellence.

Innovation-Driven Technological Leadership

We prioritize R&D and technological advancement, integrating cutting-edge production lines (e.g., JCOE large-diameter LSAW pipe production) and expert teams from countries like Germany and the Netherlands to maintain our position at the forefront of the industry.

Globalization and Open Collaboration

Actively engaging in the global supply chain, we have obtained international certifications such as CE marking, enabling our products and services to reach worldwide markets.

Professional Team and Talent Empowerment

We value the recruitment and development of technical talent, building an international and professional team that drives continuous growth.

Erw Black Steel Pipe

ASTM A501 Grade B ERW Structural Tubing