ASTM A795 Pipe

ASTM-A795-FIRE-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 StandardASTM A795
Manufacturing ProcessesERW (Electric Resistance Welding)
SMLS (Hot Finished / Cold Drawn Seamless)
Outside Diameter21.3mm – 273.1mm (1/2″ – 10″)
Wall Thickness2.11mm – 7.8mm (SCH 10S – SCH 30/SCH40)
Pipe Length3 – 18 mtrs meters
Steel GradeASTM A795 Gr. A
ASTM A795 Gr. B
Corrosion PreventionBlack lacquer coating and Hot-Dipped Zinc-Coated (Galvanized)
FBE
End ProcessesSquare Cut, Bevelling, Threading, Grooving , Shouldering
Further ProcessingWelding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

ASTM A795 Dimension Table

schematic-diagram-of-pipe-dimension

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 DesignatorDN DesignatorOutside DiameterNominal Wall ThicknessWeight Plain EndTest Pressure
Furnace-weldedSeamless and Electric-Resistance- Welded
in.mmin.mmlb/ftkg/mpsikPapsikPa
 3/4201.050[26.7]0.083[2.11]0.86[1.28]500[3400]700[4800]
1251.315[33.4]0.109[2.77]1.41[2.09]500[3400]700[4800]
1 1/4321.660[42.2]0.109[2.77]1.81[2.69]500[3400]1000[6900]
1 1/2401.900[48.3]0.109[2.77]2.09[3.11]500[3400]1000[6900]
2502.375[60.3]0.109[2.77]2.64[3.93]500[3400]1000[6900]
2 1/2652.875[73.0]0.120[3.05]3.53[5.26]500[3400]1000[6900]
3803.500[88.9]0.120[3.05]4.34[6.46]500[3400]1000[6900]
3 1/2904.000[101.6]0.120[3.05]4.98[7.41]500[3400]1200[8300]
41004.500[114.3]0.120[3.05]5.62[8.37]500[3400]1200[8300]
51255.563[141.3]0.134[3.40]7.78[11.58]BB1200[8300]
61506.625[168.3]0.134[3.40]9.30[13.85]BB1000[6900]
82008.625[219.1]0.188C[4.78]16.96[25.26]BB800[5500]
1025010.750[273.1]0.188C[4.78]21.23[31.62]BB700[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 DiameterNominal Wall Thickness AWeight Plain EndWeight Threaded
and Coulpled B
Test Pressure
Furnace-weldedSeamless and
Electric-Resistance-
Welded
in.mmin.mmlb/ftkg/mlb/ftkg/mpsikPapsikPa
 1/2150.840[21.3]0.109[2.77]0.85[1.27]0.85[1.27]700[4800]700[4800]
 3/4201.050[26.7]0.113[2.87]1.13[1.69]1.13[1.68]700[4800]700[4800]
1251.315[33.4]0.133[3.38]1.68[2.50]1.68[2.50]700[4800]700[4800]
1 1/4321.660[42.2]0.140[3.56]2.27[3.39]2.28[3.40]1000[6900]1000[6900]
1 1/2401.900[48.3]0.145[3.68]2.72[4.05]2.73[4.07]1000[6900]1000[6900]
2502.375[60.3]0.154[3.91]3.66[5.45]3.69[5.50]1000[6900]1000[6900]
2 1/2652.875[73.0]0.203[5.16]5.80[8.64]5.83[8.68]1000[6900]1000[6900]
3803.500[88.9]0.216[5.49]7.58[11.29]7.62[11.35]1000[6900]1000[6900]
3 1/2904.000[101.6]0.226[5.74]9.12[13.58]9.21[13.71]1200[8300]1200[8300]
41004.500[114.3]0.237[6.02]10.80[16.09]10.91[16.25]1200[8300]1200[8300]
51255.563[141.3]0.258[6.55]14.63[21.79]14.82[22.07]CC1200[8300]
61506.625[168.3]0.280[7.11]18.99[28.29]19.20[28.60]CC1200[8300]
82008.625[219.1]0.277A[7.04]24.72[36.82]25.57[38.09]CC1200[8300]
1025010.750[273.1]0.307A[7.80]34.27[51.05]35.78[53.29]CC1000[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
ElementComposition, max, %
CMnPS
Type E (electric-resistance-welded pipe) & Type S (seamless pipe)
Open-hearth, electric-furnace or basic-oxygen:
Grade A0.250.950.0350.035
Grade B0.301.200.0350.035
Type F (furnace-welded pipe)
Open-hearth, electric-furnace, or basic oxygen0.0500.045

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 DesignatorDN DesignatorTest Pressure
Furnace-weldedSeamless and Electric-Resistance- Welded
psikPapsikPa
 3/420500[3400]700[4800]
125500[3400]700[4800]
1 1/432500[3400]1000[6900]
1 1/240500[3400]1000[6900]
250500[3400]1000[6900]
2 1/265500[3400]1000[6900]
380500[3400]1000[6900]
3 1/290500[3400]1200[8300]
4100500[3400]1200[8300]
5125BB1200[8300]
6150BB1000[6900]
8200BB800[5500]
10250BB700[4800]
Test Pressures For Standard-Weight Fire Protection Pipe—Schedule 30 and Schedule 40
NPS DesignatorDN DesignatorTest Pressure
Furnace-weldedSeamless and Electric-Resistance- Welded
psikPapsikPa
 1/215700[4800]700[4800]
 3/420700[4800]700[4800]
125700[4800]700[4800]
1 1/4321000[6900]1000[6900]
1 1/2401000[6900]1000[6900]
2501000[6900]1000[6900]
2 1/2651000[6900]1000[6900]
3801000[6900]1000[6900]
3 1/2901200[8300]1200[8300]
41001200[8300]1200[8300]
5125CC1200[8300]
6150CC1200[8300]
8200CC1200[8300]
10250CC1000[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.

Reference Resource

Our Advantages

  1. Over 25 years of experience in pipeline production and installation.
  2. Comprehensive inspection equipment.
  3. Independent product serial numbers for traceability.
  4. Advanced production equipment – Seamer high-frequency welding machine from the United States.
  5. Complete qualifications – API 5L/API 5CT/FM/UL fire pipe certification, etc.
  6. Wide range of products – independently developed solar torque tubes, highly favored in the European market.
  7. Customers spread across the globe.
  8. Excellent after-sales service and sense of responsibility.

Application Scenarios

Our steel pipes are engineered to withstand high temperatures, corrosive environments, and varying pressures, ensuring reliability and safety in the complex petrochemical processes. 

Whether it’s transferring crude oil, natural gas, or chemical intermediates, the robustness and versatility of steel pipes make them indispensable components of the plant’s infrastructure, contributing to efficient production and maintenance of stringent safety standards.

Related Products

shows-a-seamless-pipe-during-production

SMLS Pipe

Our seamless pipes Range in sizes from 1/8 inches to 36 inches, they are produced using high-quality carbon or alloy steel.

shows-erw-pipe-welding

ERW Pipe

Our carbon steel EAW pipe with an O.D. ranging from 21.3mm to 660mm and W.T. between 1.0mm to 20mm.

SSAW Pipe

SSAW Pipe

The dimensions of our SSAW steel pipes range typically from 20 inches to 80 inches (406mm to 2032mm) in diameter.

LSAW-PIPE-MILL-CARBON-STEEL-PANDAPIPE

LSAW Pipe

With dimensions ranging from an OD of 406 mm to 1626 mm and a thickness of 6.35 mm to 75 mm, our LSAW pipes cater to a diverse set of requirements.

CONTACT US