ASTM A795 Pipe

ASTM A795 Fire Pipe

At UNIACERO, we proudly present the ASTM A795, a premium standard specification for black and hot-dipped zinc-coated welded and seamless steel pipe, specifically designed for fire protection use. This top-tier product is not only resilient but also versatile, ensuring that it meets the rigorous demands of modern fire protection systems. Whether you’re installing a new system or upgrading an existing one, our ASTM A795 steel pipes are the ideal choice, offering unmatched reliability and performance. With our commitment to quality and excellence, you can trust that our pipes will stand the test of time, safeguarding your infrastructure and assets.

ASTM A795 Specification

Our ASTM A795 steel pipes come with a comprehensive range of specifications to cater to diverse needs. These pipes range from NPS 1/2 to NPS 10, ensuring compatibility with various fire protection systems. They are suitable for several joining methods, including rolled grooves, welding, and fittings for plain end pipes. Moreover, our pipes adhere to the highest production standards, ensuring they meet the dimensions as given in Tables 1 and 2. With UNIACERO, you’re not just getting a product; you’re investing in safety, durability, and precision.

Production Standard	ASTM A795
Manufacturing Processes	ERW (Electric Resistance Welding)
Manufacturing Processes	SMLS (Hot Finished / Cold Drawn Seamless)
Outside Diameter	21.3mm – 273.1mm (1/2″ – 10″)
Wall Thickness	2.11mm – 7.8mm (SCH 10S – SCH 30/SCH40)
Pipe Length	3 – 18 mtrs meters
Steel Grade	ASTM A795 Gr. A
Steel Grade	ASTM A795 Gr. B
Corrosion Prevention	Black lacquer coating and Hot-Dipped Zinc-Coated (Galvanized)
Corrosion Prevention	FBE
End Processes	Square Cut, Bevelling, Threading, Grooving , Shouldering
Further Processing	Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

ASTM A795 Dimension Table

Understanding the dimensions of our ASTM A795 steel pipes is crucial for optimal installation and performance. Our pipes range from a nominal pipe size of ½’’ to 10″, with single random lengths spanning from 16’ to 22’. This range ensures that you can find the perfect fit for your specific requirements, ensuring a seamless integration into your fire protection system. With UNIACERO, every dimension is meticulously crafted to ensure consistency, reliability, and superior performance.

Dimensions, Weights, and Test Pressure For Light-Weight Fire Protection Pipe—Schedule 10 A
NPS Designator	DN Designator	Outside Diameter		Nominal Wall Thickness		Weight Plain End		Test Pressure
		Outside Diameter		Nominal Wall Thickness		Weight Plain End		Furnace-welded		Seamless and Electric-Resistance- Welded
		in.	mm	in.	mm	lb/ft	kg/m	psi	kPa	psi	kPa
3/4	20	1.050	[26.7]	0.083	[2.11]	0.86	[1.28]	500	[3400]	700	[4800]
1	25	1.315	[33.4]	0.109	[2.77]	1.41	[2.09]	500	[3400]	700	[4800]
1 1/4	32	1.660	[42.2]	0.109	[2.77]	1.81	[2.69]	500	[3400]	1000	[6900]
1 1/2	40	1.900	[48.3]	0.109	[2.77]	2.09	[3.11]	500	[3400]	1000	[6900]
2	50	2.375	[60.3]	0.109	[2.77]	2.64	[3.93]	500	[3400]	1000	[6900]
2 1/2	65	2.875	[73.0]	0.120	[3.05]	3.53	[5.26]	500	[3400]	1000	[6900]
3	80	3.500	[88.9]	0.120	[3.05]	4.34	[6.46]	500	[3400]	1000	[6900]
3 1/2	90	4.000	[101.6]	0.120	[3.05]	4.98	[7.41]	500	[3400]	1200	[8300]
4	100	4.500	[114.3]	0.120	[3.05]	5.62	[8.37]	500	[3400]	1200	[8300]
5	125	5.563	[141.3]	0.134	[3.40]	7.78	[11.58]	B	B	1200	[8300]
6	150	6.625	[168.3]	0.134	[3.40]	9.30	[13.85]	B	B	1000	[6900]
8	200	8.625	[219.1]	0.188C	[4.78]	16.96	[25.26]	B	B	800	[5500]
10	250	10.750	[273.1]	0.188C	[4.78]	21.23	[31.62]	B	B	700	[4800]
A Schedule 10 corresponds to Schedule 10S as listed in ANSI B36.19 for NPS 3/4 through 6 [DN 20 through 150] only. B Furnace-welded pipe is not made in sizes larger than NPS 4 [DN 100]. C Not Schedule 10.

Dimensions, Weights, Test Pressures For Standard-Weight Fire Protection Pipe—Schedule 30 and Schedule 40
NPS Designator	DN Designator	Outside Diameter		Nominal Wall Thickness A		Weight Plain End		Weight Threaded and Coulpled B		Test Pressure
		Outside Diameter		Nominal Wall Thickness A		Weight Plain End		Weight Threaded and Coulpled B		Furnace-welded		Seamless and Electric-Resistance- Welded
		in.	mm	in.	mm	lb/ft	kg/m	lb/ft	kg/m	psi	kPa	psi	kPa
1/2	15	0.840	[21.3]	0.109	[2.77]	0.85	[1.27]	0.85	[1.27]	700	[4800]	700	[4800]
3/4	20	1.050	[26.7]	0.113	[2.87]	1.13	[1.69]	1.13	[1.68]	700	[4800]	700	[4800]
1	25	1.315	[33.4]	0.133	[3.38]	1.68	[2.50]	1.68	[2.50]	700	[4800]	700	[4800]
1 1/4	32	1.660	[42.2]	0.140	[3.56]	2.27	[3.39]	2.28	[3.40]	1000	[6900]	1000	[6900]
1 1/2	40	1.900	[48.3]	0.145	[3.68]	2.72	[4.05]	2.73	[4.07]	1000	[6900]	1000	[6900]
2	50	2.375	[60.3]	0.154	[3.91]	3.66	[5.45]	3.69	[5.50]	1000	[6900]	1000	[6900]
2 1/2	65	2.875	[73.0]	0.203	[5.16]	5.80	[8.64]	5.83	[8.68]	1000	[6900]	1000	[6900]
3	80	3.500	[88.9]	0.216	[5.49]	7.58	[11.29]	7.62	[11.35]	1000	[6900]	1000	[6900]
3 1/2	90	4.000	[101.6]	0.226	[5.74]	9.12	[13.58]	9.21	[13.71]	1200	[8300]	1200	[8300]
4	100	4.500	[114.3]	0.237	[6.02]	10.80	[16.09]	10.91	[16.25]	1200	[8300]	1200	[8300]
5	125	5.563	[141.3]	0.258	[6.55]	14.63	[21.79]	14.82	[22.07]	C	C	1200	[8300]
6	150	6.625	[168.3]	0.280	[7.11]	18.99	[28.29]	19.20	[28.60]	C	C	1200	[8300]
8	200	8.625	[219.1]	0.277A	[7.04]	24.72	[36.82]	25.57	[38.09]	C	C	1200	[8300]
10	250	10.750	[273.1]	0.307A	[7.80]	34.27	[51.05]	35.78	[53.29]	C	C	1000	[6900]
A NPS 1/2 through 6 [DN 15 through 150]—Schedule 40; NPS 8 and 10 [DN 200 and 250]—Schedule 30. B Based on 20-ft [6.1-m] lengths. c Furnace-welded pipe is not made in sizes larger than NPS 4 [DN 100].

Chemical Requirements of ASTM A795

At UNIACERO, we understand the importance of chemical composition in determining the quality and performance of steel pipes. Our ASTM A795 pipes are manufactured with a precise chemical composition that ensures their strength, durability, and resistance to corrosion. This meticulous attention to detail guarantees that our pipes will not only meet but exceed the industry standards, providing you with a product that is both reliable and long-lasting.

Chemical Requirements
Element	Composition, max, %
Element	C	Mn	P	S
Type E (electric-resistance-welded pipe) & Type S (seamless pipe)
Open-hearth, electric-furnace or basic-oxygen:
Grade A	0.25	0.95	0.035	0.035
Grade B	0.30	1.20	0.035	0.035
Type F (furnace-welded pipe)
Open-hearth, electric-furnace, or basic oxygen			0.050	0.045

Mechanical Requirements of ASTM A795

Mechanical integrity is at the heart of our ASTM A795 steel pipes. With a hydrostatic test ensuring no leakage through the pipe wall and an optional non-destructive electrical method test, we guarantee the mechanical robustness of our product. Our pipes boast impressive yield and tensile strengths, ensuring they can withstand the rigors of fire protection systems and deliver when it matters most.

Test Pressure For Light-Weight Fire Protection Pipe—Schedule 10 A
NPS Designator	DN Designator	Test Pressure
		Furnace-welded		Seamless and Electric-Resistance- Welded
		psi	kPa	psi	kPa
3/4	20	500	[3400]	700	[4800]
1	25	500	[3400]	700	[4800]
1 1/4	32	500	[3400]	1000	[6900]
1 1/2	40	500	[3400]	1000	[6900]
2	50	500	[3400]	1000	[6900]
2 1/2	65	500	[3400]	1000	[6900]
3	80	500	[3400]	1000	[6900]
3 1/2	90	500	[3400]	1200	[8300]
4	100	500	[3400]	1200	[8300]
5	125	B	B	1200	[8300]
6	150	B	B	1000	[6900]
8	200	B	B	800	[5500]
10	250	B	B	700	[4800]

Test Pressures For Standard-Weight Fire Protection Pipe—Schedule 30 and Schedule 40
NPS Designator	DN Designator	Test Pressure
		Furnace-welded		Seamless and Electric-Resistance- Welded
		psi	kPa	psi	kPa
1/2	15	700	[4800]	700	[4800]
3/4	20	700	[4800]	700	[4800]
1	25	700	[4800]	700	[4800]
1 1/4	32	1000	[6900]	1000	[6900]
1 1/2	40	1000	[6900]	1000	[6900]
2	50	1000	[6900]	1000	[6900]
2 1/2	65	1000	[6900]	1000	[6900]
3	80	1000	[6900]	1000	[6900]
3 1/2	90	1200	[8300]	1200	[8300]
4	100	1200	[8300]	1200	[8300]
5	125	C	C	1200	[8300]
6	150	C	C	1200	[8300]
8	200	C	C	1200	[8300]
10	250	C	C	1000	[6900]

Steel Grades in ASTM A795

Our ASTM A795 steel pipes are available in various steel grades, each tailored to specific requirements and applications. From CW with a yield of 25,000 and tensile of 45,000 to GR. B with a yield of 35,000 and tensile of 60,000, we offer a range that ensures optimal performance and longevity. With UNIACERO, you can be confident in the knowledge that you’re receiving a product crafted from the finest grades of steel.

Production Tolerance of ASTM A795

Precision is paramount at UNIACERO. Our ASTM A795 steel pipes come with a production tolerance of +/- 12.5%, ensuring that each pipe you receive meets our stringent quality standards. This commitment to precision ensures that our pipes fit seamlessly into your systems, minimizing potential issues and maximizing performance. With UNIACERO, you’re not just purchasing a product; you’re investing in peace of mind.