GB/T 700:2006 Q275B ERW Hot Rolled Welded Carbon Ms Steel Pipe
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Type
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||
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Materials
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API 5L /A53 /A106 GRADE B and other material which client inquired
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Size
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Outer Diameter
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17-914mm 3/8"-36"
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Wall Thickness
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SCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80
SCH100 SCH120 SCH140 SCH160 XXS |
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Length
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Single random length/Double random length
5m-14m,5.8m,6m,10m-12m,12m or as customer's actual request |
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Ends
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Plain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded and coupling,etc.
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Surface Treatment
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Bare,Painting black,varnished,galvanized,anti-corrosion 3PE PP/EP/FBE coating
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Technical Methods
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Hot-rolled/Cold-drawn/Hot-expanded
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Testing Methods
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Pressure test,Flaw detection,Eddy current testing, Hydro static testing
or Ultrasonic examination and also with chemical and
physical property inspection |
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Packaging
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Small pipes in bundles with strong steel strips,large pieces in loose; Covered with plastic woven
bags; Wooden cases;Suitable for lifting operation;Loaded in 20ft 40ft or 45ft container or in bulk; Also according to customer's requests |
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Origin
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China
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Application
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Conveying oil gas and water
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Third Party Inspection
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SGS BV MTC
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Trade Terms
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FOB CIF CFR
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Payment Terms
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FOB 30%T/T,70% before shipment
CIF 30% pre-payment and the balance to be paid before making shipment or Irrevocable 100% L/C at sight |
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MOQ
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10 tons
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Supply Capacity
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5000 T/M
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Delivery Time
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Usually within 10-45 days after receipt of advance payment
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Size Chart:
| DN | OD Outside Diameter |
ASTM A36 GR. A Round Steel Pipe | BS1387 EN10255 | ||||
| SCH10S | STD SCH40 | LIGHT | MEDIUM | HEAVY | |||
| MM | INCH | MM | (mm) | (mm) | (mm) | (mm) | (mm) |
| 15 | 1/2” | 21.3 | 2.11 | 2.77 | 2 | 2.6 | - |
| 20 | 3/4” | 26.7 | 2.11 | 2.87 | 2.3 | 2.6 | 3.2 |
| 25 | 1” | 33.4 | 2.77 | 3.38 | 2.6 | 3.2 | 4 |
| 32 | 1-1/4” | 42.2 | 2.77 | 3.56 | 2.6 | 3.2 | 4 |
| 40 | 1-1/2” | 48.3 | 2.77 | 3.68 | 2.9 | 3.2 | 4 |
| 50 | 2” | 60.3 | 2.77 | 3.91 | 2.9 | 3.6 | 4.5 |
| 65 | 2-1/2” | 73 | 3.05 | 5.16 | 3.2 | 3.6 | 4.5 |
| 80 | 3” | 88.9 | 3.05 | 5.49 | 3.2 | 4 | 5 |
| 100 | 4” | 114.3 | 3.05 | 6.02 | 3.6 | 4.5 | 5.4 |
| 125 | 5” | 141.3 | 3.4 | 6.55 | - | 5 | 5.4 |
| 150 | 6” | 168.3 | 3.4 | 7.11 | - | 5 | 5.4 |
| 200 | 8” | 219.1 | 3.76 | 8.18 | - | - | - |
The pipe thickness is produced strictly as per the order with a tolerance of ±0.01mm. Each Pipe is laser cut accurately for smooth and clean ends. Galvanized surface Straight Black Carbon Steel Pipe.
The standard cutting length is 6-12m, and we can also supply American standard length 20ft. Custom lengths can be manufactured for special projects e.g. 13 meters or as otherwise needed.
With the capacity of 50,000 meter in stock and daily output over 5,000 tons, we can deliver at short notice and the price is always very competitive to satisfy our customers' requirements.
Main Application:
1. Fluid / Gas delivery, Steel structure, Construction;
2. ROYAL GROUP ERW/Welded round carbon steel pipes, which with Highest quality and strong supply ability are widely used in Steel structure and Construction.
Notes:
Risk-Free Procurement: We provide free samples for quality verification, backed by a 100% after-sales quality guarantee and flexible global payment options.
Bespoke Manufacturing: All technical specifications for carbon steel round pipes can be customized to your project needs (Full OEM/ODM support).
Direct Factory Pricing: Benefit from competitive, manufacturer-direct pricing exclusively from ROYAL GROUP.
Process of production
The manufacturing begins with raw material uncoiling and precision leveling of high-grade steel strips, followed by shearing and butt-welding into a continuous feed via the looper. The strip is then roll-formed into a cylindrical profile and fused using high-frequency induction welding, with the internal and external weld beads (scarfing) immediately removed to ensure a smooth finish. Following pre-correction, the pipes undergo induction heat treatment (seam annealing) to eliminate stress, before entering the sizing and straightening mills for final dimensional calibration. Integrity is verified through eddy current testing (ECT) and hydrostatic pressure inspection, concluding with pickling, rigorous dimensional QA, and professional packaging for global dispatch.
Packaging is generally naked, steel wire binding, very strong.
If you have special requirements, you can use rust proof packaging, and more beautiful.
Precautions for packaging and transportation of Carbon Welded Steel Pipe
1. Professional Packaging Solutions
To ensure your products withstand the rigors of long-distance maritime and land transport, we offer several specialized packaging options:
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Hexagonal Bundling: Pipes are tightly secured with multiple high-tensile steel straps for easy lifting and stability.
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Surface Protection: Each pipe is coated with anti-corrosion oil, black painting, or 3PE coating. Ends are fitted with plastic caps to protect threads and prevent internal debris.
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Reinforced Wrapping: For high-end or galvanized products, we provide waterproof woven bag wrapping or wooden crate packaging to prevent white rust and mechanical damage.
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Lifting Support: Bundles are equipped with nylon slings or wire rope "eyes" to facilitate rapid and safe vessel loading/unloading.
2. Global Logistics & Shipping
Leveraging our extensive experience in the Americas and Southeast Asia, we optimize every shipment for cost and safety:
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Container Loading (20GP/40HC): Ideal for standard lengths (5.8m/11.8m). We use professional bracing and timber dunnage to prevent cargo shifting during sea transit.
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Bulk Cargo Vessels: Recommended for large-volume orders (e.g., Z-type sheet piles or large-diameter pipes) to significantly reduce freight costs per ton.
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Multimodal Transport: Seamless integration of factory-to-port trucking and international ocean freight to ports such as Manila, Haiphong, Buenaventura, or Houston.
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Documentation Support: Full compliance with international shipping regulations, providing all necessary MTC, BL, CO, and Packing Lists for fast customs clearance.
Transportation: Express (Sample Delivery), Air, Rail, Land, Sea shipping (FCL or LCL or Bulk)
Our Customer
Q: What material are the galvanized steel pipes made of?
A: High-quality carbon steel or low-alloy steel, hot-dip or cold-galvanized, compliant with ASTM A53, EN 10240, or ISO standards.
Q: What sizes are available?
A: Outer diameter from 21.3mm to 609.6mm, wall thickness from 1.2mm to 16mm. Standard lengths 6m or 12m; custom lengths are available on request.
Q: Can custom specifications be ordered?
A: Yes, non-standard diameters, wall thicknesses, lengths, and threading can be customized to meet project needs.
Q: Can you provide material or inspection reports?
A: Yes, material certificates, zinc thickness reports, and third-party inspection reports (SGS, BV, etc.) are available.
Q: How precise are the pipe dimensions?
A: Advanced rolling and cutting equipment ensures tight tolerances (±0.01–0.05mm), allowing smooth installation and reliable performance.











