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A53 Round Carbon Steel Pipe | Black Steel Tube | Seamless/ERW Pipe Factory | Large Stock & Custom Cut Length
| ASTM A53 Steel Pipe Detail | |||
| Material Standard | ASTM A53 Grade A / Grade B | Length | 20 ft (6.1m), 40 ft (12.2m), and custom lengths available |
| Dimensions | 1/8" (DN6) to 26" (DN650) | Quality Certification | ISO 9001, SGS/BV Third-Party Inspection Report |
| Dimensional Tolerance | Schedules 10, 20, 40, 80, 160, and XXS (Extra Heavy Wall) | Applications | Industrial pipelines, building structure supports, municipal gas pipelines, mechanical accessories |
| Chemical Composition | |||||||||
| Grade | Max,% | ||||||||
| Carbon | Manganese | Phosphorus | Sulfur | Copper | Nickel | Chromium | Molybdenum | Vanadium | |
| Type S(seamless pipe) | |||||||||
| Grade B | 0.3 | 1.2 | 0.05 | 0.045 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
| Type E(electric-resistance-welded) | |||||||||
| Grade B | 0.3 | 1.2 | 0.05 | 0.045 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
| Mechanical Properties | |
| Strength | Grade B |
| Tensile strength,min,psi [MPa] | 60000 [415] |
| Yield strength,min,psi[MPa] | 35000 [240] |
| Elongation in 2 in.or 50 mm | e=625000 [1940]A⁰²7U9 |
ASTM steel pipe refers to carbon steel pipe used in oil and gas transmission systems. It is also used to transport other fluids such as steam, water, and mud.
The ASTM STEEL PIPE specification covers both welded and seamless fabrication types.
Welded Types: ERW, SAW, DSAW, LSAW, SSAW, HSAW Pipe
Common types of ASTM welded pipe are as follows:
| Welded Types | Applicable pipe diameters | Remark | |
| ERW | Electric resistance welding | Less than 24 inches | - |
| DSAW/SAW | Double-sided submerged arc welding/submerged arc welding | Large diameter pipes | Alternative welding methods for ERW |
| LSAW | Longitudinal submerged arc welding | Up to 48 inches | Also known as JCOE manufacturing process |
| SSAW/HSAW | Spiral submerged arc welding/spiral submerged arc welding | Up to 100 inches | - |
ASTM A53 Steel Pipe Guage |
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| Size | OD | WT (mm) | Length(m) |
| 1/2"x Sch 40 | 21.3 OD | 2.77 mm | 5To7 |
| 1/2"x Sch 80 | 21.3 mm | 3.73 mm | 5To7 |
| 1/2"x Sch 160 | 21.3 mm | 4.78 mm | 5To7 |
| 1/2" x Sch XXS | 21.3 mm | 7.47 mm | 5To7 |
| 3/4" x Sch 40 | 26.7 mm | 2.87 mm | 5To7 |
| 3/4" x Sch 80 | 26.7 mm | 3.91 mm | 5To7 |
| 3/4" x Sch 160 | 26.7 mm | 5.56 mm | 5To7 |
| 3/4" x Sch XXS | 26.7 OD | 7.82 mm | 5To7 |
| 1" x Sch 40 | 33.4 OD | 3.38 mm | 5To7 |
| 1" x Sch 80 | 33.4 mm | 4.55 mm | 5To7 |
| 1" x Sch 160 | 33.4 mm | 6.35 mm | 5To7 |
| 1" x Sch XXS | 33.4 mm | 9.09 mm | 5To7 |
| 11/4" x Sch 40 | 42.2 OD | 3.56 mm | 5To7 |
| 11/4" x Sch 80 | 42.2 mm | 4.85 mm | 5To7 |
| 11/4" x Sch 160 | 42.2 mm | 6.35 mm | 5To7 |
| 11/4" x Sch XXS | 42.2 mm | 9.7 mm | 5To7 |
| 11/2" x Sch 40 | 48.3 OD | 3.68 mm | 5To7 |
| 11/2" x Sch 80 | 48.3 mm | 5.08 mm | 5To7 |
| 11/2" x Sch XXS | 48.3mm | 10.15 mm | 5To7 |
| 2" x Sch 40 | 60.3 OD | 3.91 mm | 5To7 |
| 2" x Sch 80 | 60.3 mm | 5.54 mm | 5To7 |
| 2" x Sch 160 | 60.3 mm | 8.74 mm | 5To7 |
| 21/2" x Sch 40 | 73 OD | 5.16 mm | 5To7 |
Contact Us
| Application | Wall Thickness / SCH | Surface Treatment | Installation | Key Advantages |
| Water Supply | 2.77–5.59mm (SCH 40) | Underground: Hot-dip galvanizing ≥550 g/m² + coal tar epoxy | OD ≤100mm: Threaded + sealant | Corrosion-resistant, low-pressure use, cost-effective |
| OD >100mm: Welding + flange | ||||
| Sewage | 3.91–7.11mm (SCH 80) | FBE internal coating + external anti-corrosion | OD ≤100mm: Threaded + sealant | Corrosion-resistant, low-pressure, strong |
| OD >100mm: Welding + flange | ||||
| Large Diameter (≥300mm) | 5.59–12.7mm (SCH 40–120) | Hot-dip galvanizing / anti-rust paint | Welding + flange | High strength, corrosion-resistant |
| Branch / Connection | 2.11–4.55mm (SCH 40) | Hot-dip galvanizing (ASTM A123) | TIG welding + union | ≤0.4MPa pressure, tight seal, anti-leakage |
| Humid: Galvanizing + acrylic paint | ||||
| Underground: Galv. + 3PE coating | ||||
| Household (OD ≤50mm) | 1.65–2.77mm (SCH 10–40) | Same as Branch | Threaded + gas gasket | ≤0.4MPa, tight joint |
| Outdoor Main | 3.91–5.59mm (SCH 80) | Same as Branch | Flange + gas-resistant gasket, air tightness test | ≤0.4MPa, anti-leakage |
| Air / Cooling | 2.11–5.59mm (SCH 40) | Anti-rust oil + topcoat | OD ≤80mm: Threaded + adhesive | Steam resistance, industrial welding compatible |
| Steam | 3.91–7.11mm (SCH 80) | High-temp paint ≥200°C | Medium OD: MIG/arc welding | Steam pressure resistant, long service life |
| Weld flaw detection + expansion joint | ||||
| Hydraulic | 1.65–3.05mm (SCH 10–40) | Hot-dip galvanizing / epoxy | Threaded + adhesive | Long service life, industrial use |
| Embedded Water Supply | 2.11–3.91mm (SCH 40) | Anti-rust paint + cement mortar | Sleeve + joint sealing | Low-pressure, high bearing strength |
| Steel Structure (OD ≥100mm) | 4.55–9.53mm (SCH 80–120) | Hot-dip galvanizing / fluorocarbon paint | Full welding + flange | High strength, fire-approved |
| Fire Pipes | 2.77–5.59mm (SCH 40) | Red anti-rust paint | Threaded / grooved | Fire code compliant, strong |
| Irrigation | 2.11–4.55mm (SCH 40) | Hot-dip galvanizing / anti-corrosion | Socket + rubber ring | Low-cost, corrosion-resistant |
| Biogas | 1.65–2.77mm (SCH 10–40) | Galvanizing + epoxy internal coating | Threaded + gas sealant | Field/oilfield resistant, low-cost |
| Oilfield | 3.91–7.11mm (SCH 80, oil-resistant) | Coal tar epoxy + anti-rust oil | Welding + anti-corrosion | Oilfield corrosion protection, impact-resistant |
| Factory | 2.11–5.59mm (SCH 40, container suitable) | Hot-dip galvanizing (US CBP compliant) | Threaded + quick union | US transport-friendly, cost-effective |
| Coastal | 3.91–7.11mm (SCH 80, sea-resistant) | Galvanizing + fluorocarbon paint | Welding + flange anti-corrosion | Coastal durability, cost-effective |
| Farm / Municipal | 1.65–4.55mm (SCH 10–40, custom 8–10m) | Black anti-rust paint | Socket connection | Flexible length, cost-effective |
1) Branch Office - Spanish-speaking support, customs clearance assistance, etc.
2) Over 5,000 tons of stock in stock, with a wide variety of sizes
3) Inspected by authoritative organizations such as CCIC, SGS, BV, and TUV, with standard seaworthy packaging
Protection & Packaging: Each bale is wrapped with tarpaulin and heat-sealed waterproof cloth, with 2–3 desiccant packs inside for moisture protection.
Bundling: Secured with 12–16 mm steel straps, each bundle weighs 2–3 tons, ready for safe handling at American ports.
Compliance Labels: Bilingual (English + Spanish) labels clearly show material, specifications, HS code, batch, and test report number.
We work with top shipping partners like MSK, MSC, and COSCO to provide a seamless, efficient logistics service.
With strict ISO 9001 quality control from packaging to transport, we ensure your steel pipes reach the project site safely and on time—so you can build with confidence, hassle-free.
Q: What standards do your Steel Pipe comply with for Central American markets?
A: Our products meet ASTM A53 Grade B standards, which are widely accepted in Central America. We can also provide products compliant with local standards.
Q: How long is the delivery time?
A: The total delivery time (including production and customs clearance) is 45-60 days. We also offer expedited shipping options.
Q: Do you provide customs clearance assistance?
A: Yes, we cooperate with professional customs brokers in Central America to help customers handle customs declaration, tax payment and other procedures, ensuring smooth delivery.
Contact Details
Address
Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
Phone
Hours
Monday-Sunday: 24-hour Service
