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Cold Formed Welded Structural Hollow Section Tube Square And Rectangular Tube
| MOQ: | 1톤 |
| 가격: | negotiate |
| 표준 포장: | 표준 항해에 적합한 수출 포장 또는 고객 요구로서 |
| 배송 기간: | 7-15일 |
| 결제수단: | L/C, T/T, 웨스턴 유니온 |
| 공급능력: | 10000TONS |
상세 정보
원래 장소
중국
브랜드 이름
talat
인증
manufacture certificate
모델 번호
아연 도금 강관
코팅의 타입:
뜨거운 담근 아연 도금
기준:
ASTM ASME GB DIN EN
제품명:
아연 도금 강관
벽 두께:
0.8mm-2.75mm
용법:
건물구조(그린하우스)
결합방법:
용접, 스레딩
표면 처리:
아연 도금
외경:
10mm – 325mm
제품 설명
Cold Formed Welded Structural Hollow Section Tube Square And Rectangular Tube
Product Description
Pre-galvanized steel pipes are manufactured from galvanized steel strips through high-frequency ERW welding technology. With a uniform zinc coating and stable mechanical performance, these pipes are widely used in construction, scaffolding, greenhouse systems, and furniture manufacturing.
Key Features
- Uniform zinc coating for corrosion resistance
- Smooth surface, suitable for further processing
- High precision in diameter and thickness
- Strong weld seam with ERW technology
- Available in standard and customized specifications
- Cost-effective alternative to hot-dip galvanized pipes
Product Specifications
| Commodity | Hot dipped and pre-galvanized steel pipe |
|---|---|
| OD | 20 – 112 (square or rectangular) |
| Thickness | 0.7 – 2.3 |
| Length | 4000 – 13000 / 5000 – 10000 or as per customers' requirements |
| Material | Q195-Grade B, SS330, SPC, S185; Q215-Grade C, CS Type B, SS330, SPHC; Q235-Grade D, SS400, S235JR, S235JO, S235J2; Q345-SS500, ST52 |
| Standard | GB/T13793-1992, GB/T14291-2006, GB/T3091-1993, GB/T3092-1993, GB3640-88, BS1387/1985, ASTM A53/A36, EN39/EN10219, API 5L, GB/T9711.1-99 etc |
| Zinc Coating | Pre galvanized: 60-150g/m²; Hot dipped galvanized: 200-400g/m² |
| Application | Structure, Accessories, Construction, Fluid transportation, machinery parts, automotive stress parts, tractor parts |
| Package | Big OD: in bulk; Small OD: packed by steel strips; Plastic bags; According to customer's requirement |
| Delivery | Normally 7-20 days after deposit or according to quantity |
| Certification | ISO 9001-2008, BV, TUV, SGS |
Manufacturing Process (Brief)
Steel Coil → Slitting → Forming → ERW Welding → Sizing → Cutting → Passivation → Packing
This continuous production ensures:
- Stable welding seam
- Accurate dimensions
- Consistent coating
Pre Galvanized VS Hot Dip Galvanized Pipes
| Feature | Pre Galvanized Pipe | Hot Dip Galvanized Pipe |
|---|---|---|
| Zinc Layer | Thin & uniform | Thick |
| Surface | Smooth | Rough |
| Cost | Lower | Higher |
| Application | Indoor/light outdoor | Outdoor/ heavy corrosion |
Conclusion: pre galvanized pipe is the best choice for projects requiring cost efficiency+clean surface+stable supply.
Applications
- Construction structures
- Scaffolding systems
- Greenhouse frames
- Furniture manufacturing
- Fencing & railing systems
- Mechanical tubing
Packing & Delivery
Packaging & Delivery
- Packing (Bundles / Seaworthy Packaging)
- Tagging
- Weight Checking
- Trucking / Shipment
FAQ:
Q1: What is the difference between pre galvanized and galvanized steel pipe?
A: Pre galvanized pipe is made from coated strip before forming, while hot dip galvanized pipe is coated after forming, resulting in thicker zinc protection.
Q2: Is pre galvanized steel pipe suitable for outdoor use?
A: It can be used for light outdoor environments, but for heavy corrosion areas, hot dip galvanized pipe is recommended.
Q3: What sizes of GI pipes do you supply?
A: We supply 20mm to 112mm diameter with thickness from 0.7mm to 2.3mm, and support full customization.
Q4: Can you provide customized steel tubes?
A: Yes, we support customized size, thickness, length, and tolerance according to your requirements.
Q5: What industries use pre galvanized steel pipes most?
A: Construction, greenhouse agriculture, furniture manufacturing, fencing, and scaffolding.
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