Scaffolding Pipe Sch40 Corrugated Square Hot DIP Galvanized Steel Pipe ERW Hollow Section Iron Recta
Detailed specification for Scaffolding Pipe Sch40 Corrugated Square Hot DIP Galvanized Steel Pipe ERW Hollow Section Iron Recta
Review product features, application details and supporting information below. For pricing, samples or shipping questions, use the inquiry form on this page.
| Model NO. | HY-PIPE |
| Type | Welded |
| Technique | Hot Rolled |
| Material | Carbon Steel |
| Surface Treatment | Black |
| Usage | Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry |
| Section Shape | Square |
| Alloy or Not | Non-Alloy |
| Standard | JIS DIN ASTM En BS AISI |
| Grade | A36 |
| Special Pipe | Thick Wall Pipe |
| Thickness | 0.6 - 25 mm |
| Length | 12m, 6m |
| Processing Service | Welding, Punching, Cutting, Bending |
| Product Name | Carbon Steel Square Tube |
| Surface | Black |
| Outer Diameter | 10mm*10mm - 500mm*500mm |
| Keyword | Carbon Steel Square Pipe |
| Transport Package | Standard Packing |
| Specification | Customized |
| Trademark | HongYan |
| Origin | China |
| HS Code | 7304119000 |
| Production Capacity | 5000ton |
Scaffolding Pipe SCH40 Corrugated Square Hot Dip Galvanized Steel Pipe ERW Hollow Section Iron Rectangular Tube For Greenhouse
Specification
Product Name
square and rectangular steel pipe
Material
carbon steel
Steel Grade
Q195 = S195 / A53 Gr. A
Q235 = S235 / A53 Grade B / A500 Gr. A / STK400 / SS400 / ST42.2
Q355 = S355JR / A500 Grade B Grade C
Standard
EN10219, EN10210
GB/T 6728
JIS G3466
ASTM A500, A36
Surface Anti-rusty Coating
Plastic wrapped
Slightly oiled
Painted black or other color
Pipe Ends
Plain ends
Certificates
ISO 9001 / ISO 18001 / ISO 14001 / CE
Usage
Construction / building materials steel pipe
Structure steel pipe
Solar structure component steel pipe
Fence post steel pipe
Greenhouse frame steel pipe
Trade terms
FOB, CFR, CIF, EXW, FCA
Delivery time
5-15 days (based on quantity) after receiving advanced payment by T/T or LC .
Main market
Southeast Asia, South Asia, Middle East, Europe, Middle&South America, Africa and Oceania

Square and Rectangular Steel Pipe size chart
Square Hollow Section
Rectangular Hollow Section
Thickness
15*15 20*20 25*25 30*30
20*40 30*40
1.2-3.0
40*40 50*50
30*50 25*50 30*60 40*60
1.2-4.75
60*60
50*70 40*80
1.2-5.75
70*70 80*80 75*75 90*90 100*100
60*80 50*80 100*40 120*80
1.5-5.75
120*120 140*140 150*150
160*80 100*150 140*80 100*180 200*100
2.5-10.0
160*160 180*180 200*200
200*150 250*150
3.5-12.0
250*250 300*300 400*200 350*350 350*300
250*200 300*200 350*200 350*250 450*250 400*300 500*200
4.5-15.75
400*400 280*280 450*300 450*200
400*350 400*250 500*250 500*300 400*600
5.0-20.0
Carbon steel square tube is a hollow steel tube with a square or rectangular cross section, mainly made of carbon steel. Its carbon content is usually between 0.12% and 2.0%, which makes it have certain strength and toughness.
Carbon steel square tubes come in a variety of sizes, with common specifications including:
- **Side Length**: 20×20 mm, 40×40 mm, 50×50 mm, 100×100 mm, etc.
- **Wall Thickness**: Typically ranges from 1.0 mm to 6.0 mm, depending on the intended use.
- **Length**: Typically 6 or 12 meters, but customizable.
### 3. **Main Features**
- **High Strength**: Suitable for load-bearing structures.
- **Excellent Machinability**: Easy to weld, cut, and bend.
- **Low Cost**: More economical than stainless steel or other alloy steels.
- **Various Surface Treatments**: Available in galvanized, painted, or untreated black tubing to suit different environments.
Please contact me for more product details and the latest prices.




*Application Areas**
- **Architectural Structure**: Such as stair railings, brackets, and frames.
- **Machinery Manufacturing**: Used for equipment frames and conveyor racks.
- **Furniture Industry**: Used for manufacturing tables, chairs, and shelves.
- **Decoration Engineering**: For example, decorative frames in shopping malls and exhibition halls.
Please contact me for more product details and the latest prices.
Company Profile
Shandong Hongyan Metal Material Co., Ltd. Our vision: To be a professional, reliable and outstanding world-class steel supplier. Our company is located in Jinan City, Shandong Province, with a registered capital of RMB 50 million. We are a professional steel sales company integrating domestic and foreign trade. Our company's main products are stainless steel sheet/coil/tube/rod, carbon steel sheet/coil/tube/rod, galvanized sheet/coil/tube, PPGI and PPGL, H-beam, I-beam, angle steel, channel steel, steel plate pile. Our company has successfully exported to more than 70 countries in Europe, the Middle East, Africa, Southeast Asia, South America, etc. Adhering to the win-win concept and customer-centric belief, we look forward to becoming your trusted quality partner.
Customer Photos

Our Services
1. Pre-Sales Service *We can offer one free sample length 20 cm with freight collected, if you want to buy our products and take our price.
2. After-Sales Service *Quality/Quantity Claims: The Buyer is entitled to make both quality and quantity claim in writing against the Seller within 90 days after arrival at the port of destination.
Strict Quality Control:
1) During and after production, 4 QC staffs with more than 5 years experience inspect products in random.
2) National accredited laboratory with CNAS certificates
3) Acceptable inspection from third party appointed/paid by buyer, such as SGS, BV.
4) Approved by Malaysia, Indonesia, Singapore, Philippines, Australia, Peru and UK. We own UL, ISO9001/18001, FPC certificates.
Packing & Delivery
1. OD 300mm and below In hexagonal seaworthy bundles packed by steel strips, With two nylon slings for each bundles 2. above OD 300mm in bulk or according to custom opinion 3. 25 tons/container and 5 tons/size for a trial order; 4. For 20" container the max length is 5.8m; 5. For 40" container the max length is 11.8m.
To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
Shandong Hongyan Metal Material Co., Ltd.
Shandong Hongyan Metal Material Co., Ltd. supplies Scaffolding Pipe Sch40 Corrugated Square Hot DIP Galvanized Steel Pipe ERW Hollow Section Iron Recta for international B2B buyers. Contact the supplier to discuss bulk orders, sample arrangements, custom requirements and shipping timelines.
Frequently Asked Questions
Find quick answers about samples, payment, delivery, packaging and quality assurance before placing an order.
Q1: May I get one sample before placing order?
AYes, Sample are available. For normal products, samples are for free and you just need to bear the freight; For those high value products, you just need to freight and certain product cost. When we both cooperate for some times or when you are our VIP customer, free sample will be offered when you need.
Q2: Which payment is available for your company?
AT/T, L/C or Ali trade insurance. You can choose the one which is convenient for you.
Q3: How and when can I get my goods after payment?
AFor small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.) or by air. Usually it will cost 3-5days that you can get the goods after delivery. For large quantity products,shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on where the port is.
Q4: Is there any possible to use my appointed label or package?
AYes. If needed, we'd like to use label or package according to your requirement.
Q5: How can you guarantee the goods you offer is qualified?
AWe always believe honesty and responsibility are basis of one company, so whatever products we provide for you all are qualified. We will have goods tested and provide COA before delivery for sure.
Q6: Is the price on this page correct?
AThe listed price is only for reference, for latest price, pls contact us directly.
Q7: How can I get some samples?
AWe are honored to offer you free samples, just need to pay the freight cost.
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