Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of astm a53 180×4.5 gr.b in China. Welcome to buy discount astm a53 180×4.5 gr.b made in China here from our factory. Quality products and low price are available.
Product introduction
ASTM A53 180×4.5 GR.B Carbon Steel Pipe – Product Detail
Product Description
ASTM A53 Grade B 180×4.5 is a versatile carbon steel pipe conforming to ASTM A53 / A53M (black & hot‑dip galvanized, welded & seamless). It balances strength, weldability and economy, widely used for low‑to‑medium pressure fluid transport, structural supports, fire protection, HVAC and general engineering. Available as Type E (ERW welded) or Type S (seamless).
Basic Specifications
| Item | Value |
|---|---|
| Standard | ASTM A53 / A53M |
| Grade | Grade B (GR.B) |
| Outer Diameter | 180 mm |
| Wall Thickness | 4.5 mm |
| Inner Diameter | 171 mm (calculated) |
| Manufacturing Type | Type E (ERW) / Type S (Seamless) |
| Length | 6 m / 12 m or custom cut |
| Surface | Black (bare) / Hot‑dip galvanized |
| Ends | Plain / Beveled / Threaded (on request) |
Material Grade: ASTM A53 GR.B
Grade B: Higher strength than Grade A, preferred for structural and pressure applications.
Design temperature: ≤ 350°C (660°F).
Dimensional Tolerances (ASTM A53)
| Parameter | Tolerance |
|---|---|
| Outer Diameter (OD) | ±1% (for OD ≥ 60.3 mm) |
| Wall Thickness (WT) | ±12.5% of nominal |
| Length | ±50 mm |
| Straightness | ≤ 1.5 mm/m |
Mechanical Properties (ASTM A53 GR.B)
| Property | Requirement |
|---|---|
| Minimum Yield Strength (R<sub>eH</sub>) | ≥ 240 MPa (35 ksi) |
| Tensile Strength (R<sub>m</sub>) | 415–540 MPa (60–78 ksi) |
| Elongation (A) | ≥ 23% (in 50 mm gauge) |
| Hardness | ~140 HB (typical) |
Chemical Composition (Max %, Type E/S)
| Element | C | Mn | P | S | Si | Cu (optional) |
|---|---|---|---|---|---|---|
| Limit | ≤0.30 | ≤1.20 | ≤0.05 | ≤0.045 | ≥0.10 | ≥0.18 |
Typical: C ≤0.25%, Mn 0.60–0.90%, P/S ≤0.035%.
Manufacturing Process
Type E (ERW): Hot‑rolled strip → Cold forming → High‑frequency resistance welding → Sizing → Straightening → NDT → Anti‑rust oil / Galvanizing.
Type S (Seamless): Billet heating → Rotary piercing → Elongation → Sizing → Hot finishing / Cold drawing → Heat treatment (if required) → Inspection.
Weld quality (ERW): Full‑penetration longitudinal weld, 100% ultrasonic tested (UT).
Key Advantages
ASTM A53 compliant, compatible with ASME B36.10M.
High strength & good ductility (Grade B).
Excellent weldability (low carbon equivalent).
Cost‑effective for low‑medium pressure systems.
Multiple surface options: Black / Galvanized.
Reliable performance at –20°C to 350°C.
Applications
Water, gas, air and steam lines (low‑medium pressure)
Fire protection sprinkler systems
Structural columns, supports, handrails, scaffolding
HVAC and refrigeration piping
Mechanical engineering, agricultural equipment, chassis parts
Quality Inspection & Certification
100% dimensional check (OD, WT, length, straightness)
Mechanical tests: Tensile, flattening, bend test
Chemical analysis (spectrometer)
NDT: UT for welds (ERW), hydrostatic / pneumatic test on request
Mill Test Certificate (MTR) provided per batch, traceable heat number
Packaging & Delivery
Bundled with steel straps, wrapped in waterproof plastic / hessian cloth
Marking: Standard, Grade, Size, Heat No., Batch No., Length
Trade terms: FOB / CIF / CFR / DAP
Loading ports: Tianjin, Qingdao, Shanghai, Ningbo
Customization: Cut‑to‑length, end finishing, galvanizing, painting
Contact Us
For pricing, lead time, stock availability or custom requirements for ASTM A53 180×4.5 GR.B pipe, please contact our sales team. We provide full technical support and reliable carbon steel pipe solutions.
About us
Hebei Huayang Steel Pipe Co., Ltd. was founded in 2005, with a registered capital of 500 million yuan. The company covers an area of more than 1,000 mu, with annual sales of 10 billion yuan, more than 600 employees and an annual productivity of 2.75 million tons. The company has 17 new automatic steel pipe production lines and 14 high-frequency production lines, with a diameter of 73-660 mm; Three double-sided submerged arc welded steel pipe production lines with diameters of 406.4-1422.4mm;; 24 hot tube expanding production lines, with a diameter of 230-820mm; Two anticorrosion steel pipe production lines with a diameter of 73-1626 mm; 2 automatic painting production lines. With 3 branches and 5 offices, the products are sold to various cities and exported to more than 80 countries such as Southeast Asia, Middle East, Europe and America.
Packaging, transportation and delivery
Packaging, transportation and delivery
At Hebei Huayang Steel Pipe Co., Ltd., we apply standardized and reliable packaging solutions for all our steel pipe products. Our pipes can be securely packed by hexagonal bundling or circular bundling according to product diameter, wall thickness and customer requirements. Each pipe end is protected with high‑strength plastic pipe caps to avoid collision damage, dust and moisture during transportation and storage. The whole bundle is firmly wrapped with durable woven bags to enhance stability and prevent scratches or deformation.
We support a complete range of transportation methods to satisfy global customers, including road transportation, railway transportation, sea freight and container shipping. Based on our strategic location in Cangzhou, Hebei Province, we enjoy convenient access to major ports such as Tianjin Port, which greatly improves logistics efficiency and reduces transportation costs.
For standard specifications and normal order quantities, the general delivery time is about 30 days after order confirmation and deposit receipt. For large‑scale orders, special sizes or customized processing requirements, our production and sales team will formulate a detailed production plan and provide an accurate delivery schedule accordingly to ensure on‑time supply and stable performance for projects and clients worldwide.
Strict quality control
1. During and after the production, experienced quality inspectors randomly check the products to ensure that each steel pipe is qualified for production and application.
2. A nationally recognized laboratory with CNAS certification and certification by French Classification Society.
3. Have CNOOC access certificate, KOC oil company access network, ADNOC Abu Dhabi oil company access network, Petrobras access network, etc.
4. Accept the inspection by the third party designated/paid by the buyer, such as SGS and BV.
Certifications
API 2B
API 5L
GOST
ISO 9001
EN 10219
EN 10210
Hot Tags: astm a53 180×4.5 gr.b, China astm a53 180×4.5 gr.b manufacturers, suppliers, factory, API 5L X60, HFW Welding, 610 Straight Seam Steel Pipe Petroleum Pipeline Steel, API 2B Q355B ERW STEEL PIPE, Q390C ERW STEEL PIPE, ERW STEEL PIPE API 5L Q235B Bore 150
