Hunan Hengan Weiye Metal Products Co., Ltd.
| Packaging Details | Wooden Pallet or Wooden Box |
| W.T | 0.8-30mm |
| Productivity | 10000tons/month |
| Surface Treatment | Galvanized(zinc coated), painted, oiled, powder coated, PVC coated ,or as clients' requirement |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Size | 10*10-1000*1000mm |
| Standard | GB/T 3094-2000, GB/T 6728-2002, DIN EN 10210, DIN EN 10219, GB/T 178-2005，ASTM A53, ASTM A500,BS EN 10219,JIS G 3466, ASTM A513, ASTM A36 |
| Delivery Time | 10-30 Days |
| Length | As customers demand |
| Steel Grades | Q195, Q235A-B, Q345A-E, 10#, 20#, 16Mn, ASTM A36,ASTM A500, ASTM A53, ASTM 106, SS400, St37, St52, S235JR, S355TRH etc |
| Supply Ability | 100000 Tons per month |
| Thickness Tolerance | ±0.05mm |
| Application | Building, structure, Fence |
| Production Technology | High-frequency welding. |
| O.D Tolerance | ±0.5mm |
| Packing | In bundles or bulk or as per customer's requirement |
| Certification | ISO 9001, ISO 14001, ISO 45001 |
| Place of Origin | China |
| Brand Name | HA Steel |
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Product Specification
| Packaging Details | Wooden Pallet or Wooden Box | W.T | 0.8-30mm |
| Productivity | 10000tons/month | Surface Treatment | Galvanized(zinc coated), painted, oiled, powder coated, PVC coated ,or as clients' requirement |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union | Size | 10*10-1000*1000mm |
| Standard | GB/T 3094-2000, GB/T 6728-2002, DIN EN 10210, DIN EN 10219, GB/T 178-2005，ASTM A53, ASTM A500,BS EN 10219,JIS G 3466, ASTM A513, ASTM A36 | Delivery Time | 10-30 Days |
| Length | As customers demand | Steel Grades | Q195, Q235A-B, Q345A-E, 10#, 20#, 16Mn, ASTM A36,ASTM A500, ASTM A53, ASTM 106, SS400, St37, St52, S235JR, S355TRH etc |
| Supply Ability | 100000 Tons per month | Thickness Tolerance | ±0.05mm |
| Application | Building, structure, Fence | Production Technology | High-frequency welding. |
| O.D Tolerance | ±0.5mm | Packing | In bundles or bulk or as per customer's requirement |
| Certification | ISO 9001, ISO 14001, ISO 45001 | Place of Origin | China |
| Brand Name | HA Steel |
Large-diameter square steel pipe is heavy-duty cold-formed ERW welded hollow structural section, specially designed for large-span building frames, heavy machinery supports, municipal infrastructure and oversized engineering equipment.
The whole production workflow includes uncoiling, flattening, roll forming, high-frequency welding, deburring, water cooling, NDT inspection, sizing cutting and surface finishing. All finished large square tubes pass strict dimensional tolerance inspection (side tolerance ±0.5mm, wall tolerance ±0.05mm) before warehousing.
Compared with small square tubes, this large series features thicker wall options and ultra-wide side sizes to bear heavier static & dynamic loads. We support custom surface anti-corrosion treatment and secondary cutting, punching, bending processing, widely supplied to global construction, machinery, municipal and agricultural engineering customers.
| Element | C (Max) | Si | Mn | P (Max) | S (Max) |
|---|---|---|---|---|---|
| Content Range | 0.17~0.22 | ≤0.35 | 0.30~0.70 | 0.045 | 0.045 |
| Element | C (Max) | Si (Max) | Mn (Max) | P (Max) | S (Max) |
|---|---|---|---|---|---|
| Content Range | 0.24 | ≤0.55 | ≤1.60 | 0.035 | 0.035 |
| Element | C (Max) | Si | Mn (Max) | P (Max) | S (Max) |
|---|---|---|---|---|---|
| Content Range | 0.26 | Optional | ≤1.35 | 0.035 | 0.035 |
| Element | C (Max) | Si (Max) | Mn (Max) | P (Max) | S (Max) |
|---|---|---|---|---|---|
| Content Range | 0.25 | ≤0.40 | ≤1.00 | 0.04 | 0.05 |
We supply matching square, rectangular, round hollow sections and alloy pipes for full structural & pipeline projects:
Side size up to 1000×1000mm and wall thickness up to 30mm, perfect for large-span workshop columns, heavy equipment bases and municipal large support frames.
Side width tolerance ±0.5mm, wall thickness tolerance ±0.05mm, flat square surface for easy bolt connection and assembly.
High-frequency integrated welding line with online UT/eddy current non-destructive inspection, no hidden crack defects inside the weld seam.
Black bare, oiled, hot galvanized, powder coated finishes available to adapt indoor, outdoor and coastal corrosive service environments.
Low-carbon steel matrix supports cutting, drilling, punching, bending and all mainstream welding processes for on-site fabrication.
Monthly output 10,000 tons, accept small batch orders starting from 25 tons, controllable delivery cycle for global engineering orders.
We provide integrated forging and precision machining services, and can produce finished components strictly according to customer drawings:
Turning, milling, planing, drilling, boring, grinding
Gear cutting, CNC precision machining
Sizing cutting, surface treatment and finishing
We have supplied a wide range of forged and machined parts including shafts, cylinders, hollow bars, pistons, tube sheets, rings and disc bearings to customers worldwide.
We have a professional QC inspection team and complete testing equipment to ensure stable and reliable product quality:
Ultrasonic testing (UT) for internal defects
Tensile and hardness testing for mechanical properties
High-precision dimensional measurement
Spectrometer for chemical composition verification
Metallographic microstructure inspection
Every batch of products undergoes strict inspection before delivery to meet the quality requirements of various engineering projects.
Inner packaging: waterproof polybag for moisture and dust protection
Outer packaging: reinforced wooden case / wooden pallet, suitable for long-distance international transportation
Custom packaging solutions available upon request
Normally 10 – 45 days after receipt of advance payment
Exact delivery time depends on order quantity, specification complexity and machining requirements
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler
Year Established:
1998
Total Annual:
>1-2 billion
Employee Number:
>200+
Ecer Certification：
Verified Supplier
HengAn Weiye Steel Group (HA Group) is a leading Chinese supplier of special steel, alloy materials, and precision machining services, with nearly 30 years of industry experience. The company integrates material sourcing, manufacturing, processing, and international trade, providing one-stop solutio... HengAn Weiye Steel Group (HA Group) is a leading Chinese supplier of special steel, alloy materials, and precision machining services, with nearly 30 years of industry experience. The company integrates material sourcing, manufacturing, processing, and international trade, providing one-stop solutio...
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