BS1139 S235 Scaffolding Black Welded Steel Pipe Carbon Steel Scaffold Tube
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Product Highlights
- Customizable Dimensions: Length and thickness can be customized according to customer requirements.
- OEM Logo Printing: Professional manufacturer offering logo and label printing for OEM products.
- Diverse Surface Options: Available in painted black, natural, oiled, or galvanized finishes.
- Wide Application Range: Suitable for construction, fencing, fire sprinklers, and agricultural use.
- Flexible End Shapes: Beveled, plain, vanished, or capped ends available per customer needs.
- Global Shipping Network: Fast delivery to Asia, Middle East, Africa, and South America within 10-60 days.
- Factory Direct Pricing: Competitive quotes provided within 24 hours of inquiry receipt.
- ISO 9001 Certified: Manufacturing process certified with ISO 9001:2015 for quality assurance.
Product Attributes
- Customization
- Available
- Type
- Welded
- Technique
- Hot Rolled
- Material
- Carbon Steel
- Surface Treatment
- Black
- Usage
- Pipeline Transport, Oil/Gas Drilling, Machinery Industry, Construction & Decoration, Building Material
- Section Shape
- Round
- Standard
- ASTM, DIN, GB, JIS, BS1387
- Tolerance of Thickenss
- Usually +/-0.15mm or According to Customers
- Secondary or Not
- Non-Secondary
- Lenght of Steel Pipe
- Customers' Request
- Thickness of Steel Pipe
- 1.5-20mm
- Color of Steel Pipe
- Painted Black or Natural
- Yield Strength of Galvanzied Pipe
- 235 (MPa)
- Tensile Strength
- 375-460 (MPa)
- Alloy or Not
- No Alloy
- Welded or Seamless
- Welded
- Transport Package
- Standard Export Package
- Specification
- OD 1/2 INCH ~ OD 20 INCH
- Trademark
- YOUFA
- Origin
- Tianjin, China
- HS Code
- 7306309000
- Production Capacity
- 16000000 Tons Per Year
Product Images of BS1139 S235 Scaffolding Black Welded Steel Pipe Carbon Steel Scaffold Tube
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Product Description

Chemical Composition and Mechanical Performance:
|
Table 1- Chemical composition |
Mechannical Performance | ||||||||||
|
Steel Grade |
C% |
Si% |
Mn% |
P% |
S% |
Cu % |
Cr % | Mo % | T.S. | Y.S. | EL. |
|
A |
≤0.25 |
≤0.10 |
0.27-0.93 |
≤0.035 |
≤0.035 |
≤0.40 |
≤0.40 | ≤0.15 | 330 | 205 | 25 |
|
B |
≤0.30 |
≤0.10 |
0.29-1.06 |
≤0.035 |
≤0.035 |
≤0.40 |
≤0.40 | ≤0.15 | 240 | 415 | 25 |
|
C |
≤0.35 |
≤0.10 |
0.29-1.06 |
≤0.035 |
≤0.035 |
≤0.40 |
≤0.40 | ≤0.15 | 315 | 425 | 20 |
Other Specification:
|
End Shape |
Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per customer's requirements |
|
|
Surface Treatment |
Oiled, Galvanized, painted black |
|
|
Technique |
Hot rolled, Cold Rolled |
|
|
Application |
1. structural applications, industrial and residential construction |
|
|
2. fence post / fencing / bollards / bed frame |
||
|
3. natural gas |
||
|
4. in fire sprinkler systems / water supply |
||
|
5. athletic equipment / light pole / lamppost |
||
|
6. Agriculture / greenhouse |
||
|
Package |
1. Bundle Packing. |
|
|
2. Wrapped in waterproof paper. |
||
|
3. Sackcloth with several steel strips. |
||
Our Advantages of Black Steel Pipes:
Black Round Pipes Production Procedure:
Our regular Steel Pipes:
Factory Display: YOUFA steel pipe group.
Customers Visit YOUFA steel pipe group.
| 1 | |
| Are you a trading company or manufacturer? | |
|
Yea, we are manufacturer. We have our own manufacturer-Tianjin YOUFA steel pipe group. |
|
|
Tianjin YOUFA international Trade Co.,Ltd. is our own export trade platform. |
|
| URL: sianosteel.en.made-in-china.com | |
| 2 | |
| How can I get the price? | |
| We usually quote within 24 hours after we get your inquiry by telling us the material, out diameter, | |
| wall thickness length, quantity and application of the steel pipe which you need. If you are very | |
| urgent to get the price, please inform us in email so that we will regard your inquiry priority. | |
| 3 | |
| How can I get a sample to check your quality? | |
| After price confirmation, you can require for samples to check our quality. | |
| we will provide you the sample for free, however we could only make sure the same material, the | |
| dimension will be much similar as your request but not same. And customer should afford the | |
| charge of shipment. | |
| 4 | |
| How long can I expect to get the sample? | |
| The samples will be sent to you via express and arrive in 3-5 days. | |
| You can use your own consignee account or prepay us if you do not have an account. | |
| 5 | |
| What about the lead time for mass production? | |
| Honestly, it depends on the order quantity and the season you place the order. | |
| 6 | |
| What is the Small Qty Process Charge. | |
| It is the payment for customer whose order qty is less then Min Order Qty. Because small qty of | |
| products should be processed same in the production flow as big qty and the average cost would | |
| get much higher than big ones. So there is a small Qty Process Charge to ensure the profit of our | |
| factory and usually the amount of it is about $250.00 | |
| 7 | |
| Could the pipe be customized for us? | |
| Yes. We are the professional manufacturer which has rich experience in Steel Pipe manufacturing. | |
| We could print the logo and label under your requirements if you need OEM products. | |
| 8 | |
| What is your terms of delivery? | |
| We accept EXW, FOB, CIF, CFR etc. You can choose the one which is the most convenient or cost | |
| effective for you. | |
| 9 | |
| Shipping | |
| Asia Countries: 10-30 days, | |
| Middle East: Around 30-40 days | |
| Africa: Around 30-50 days | |
| South America : 30-60 days | |
| Please advise your port in you inquiry for quoting, will quote for you specifically |
YOUFA steel pipe group attend the exhibition:
About US:
Tianjin YOUFA were founded on July 1st,2000, besides headquartering in Tianjin, currently we have 11 subsidiariesand branchs in Tangshan, Handan, and Shanxi. They are totally 9000 employees, In addition 64 ERW Steel Pipe production line, 42 Hot dipped galvanized steel pipe production line, 33 square and rectangular praoduction lines, 15 galvanized square and rectangular praoduction lines, 9 SSAW steel pipe production line, 3 National accredited Laboratory and 1 Tianjin government accreditedbusiness technology center, in 2019, we had produced all kinds of steel pipes 16 million tons, realizing export being USD 0.16 billion. Our steel pipes production and sale AT NO.1 in nine consecutive years.
Why Choose US:
We are the Biggest steel pipe manufacturer in China. the most reliable steel pipe supplier in China.
And we have rich experience in handling order for heavy buyers with professional process.
- Stable raw material purcahsing.
- Favorable orders follow-up management.
- Laudable Lead-time & Shipment Control.
- Traceable quality evaluation.
- Flexible payment terms.
If you are Interest, Send me the inquiry here!
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR2461066". Items marked "" are certified.
Company Profile
Tianjin Youfa International Trade Co., Ltd. is the subsidiary of Tianjin Youfa Group. As one of the windows for international business, we mainly focus on exploring overseas markets as well as developing and offering service for major domestic clients. Tianjin Youfa Group is a comprehensive steel-based enterprise, the business includes steel-making, steel strip, straight seam welded pipe, galvanized pipe, rectangular pipe, spiral pipe, plastic inner-lined pipe, seamless pipe, covered electrode, so on and so forth. The annual integrate production capacity amounts to 7.5 million tons. Since 2006, we have been one of the leading corporations in Chinese Top-500. What is more, Youfa Group is the largest straight-seam welded pipe manufacturer in China. In 2008, "YouFa" Brand was regarded as the "Well-known Chinese Trademark" by Trademark Office State Administration for Industry &Commerce of the People's Republic of China. Meanwhile, we are the first-class supplier for CNPC, Sinopec and some big relevant companies. So as to adapt to the overall-developing strategy, at the beginning of 2010, YouFa Group and its subsidiaries founded SIANO(Beijing) Steel Co., Ltd, which is responsible for the import &export business, building business contact with some influential companies and providing the after-sale service for our customers.
Our motto is "Integrity Is First, Clients are Highest" and we will do our utmost to provide the best service for customers both at home and abroad.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- No 7f, No 4 Anshun Building, Dafeng Road(Aqua City), Hongqiao District, Tianjin, China
-
Plant Area
- 910 square meters
-
Number of Employees
- 83
-
Registered Capital
- 100,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
- Peak Season Lead Time, one month, Off Season Lead Time, one month
-
Nearest Port
- Tianjin Port
-
Minimum Order Quantity
- 1
-
Supply Chain Partners
- 260
Our Production Capability & Technical Expertise
-
Main Products
- Carbon Steel Pipe, Galvanized Steel Pipe, Stainless Steel Pipe, Scaffolding, Pipe Fitting
-
Production Lines
- 2
-
Production Machines
- Turning machine tool
-
Inspection Type for Finished Products
- Random inspection Visual inspection Function inspection
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples,Customization from Designs,Full Customization,Minor Customization,Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 6 people
-
Traceability of Raw Materials
- Yes
-
Test Reports for Raw Materials
- UL
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2012-11-08
-
Export Year
- 12 years
-
Main Markets
- North America, South America, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea), Australia
-
Repeat Buyers Choice
- 50%~80%
-
Annual Export Revenue
- 4,172,847.2 USD
-
Number of Foreign Trading Staff
- 57
-
Overseas Agent/Branch
- No
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- Yes
FAQ
- Are you a trading company or manufacturer?
- We are a manufacturer with our own factory, Tianjin YOUFA steel pipe group, and have 11 subsidiaries and branches.
- How can I get the price?
- We usually quote within 24 hours after receiving your inquiry with details on material, diameter, wall thickness, length, quantity, and application.
- How can I get a sample to check your quality?
- After price confirmation, we provide free samples with the same material but similar dimensions; the customer pays for shipment.
- How long can I expect to get the sample?
- Samples are sent via express and arrive in 3-5 days using your consignee account or prepaid.
- What about the lead time for mass production?
- Lead time depends on the order quantity and the season the order is placed.
- What is the Small Qty Process Charge?
- It is a $250.00 fee for orders below the Minimum Order Qty to cover higher average production costs.
- Could the pipe be customized for us?
- Yes, we offer customization including logo and label printing for OEM products.
- What are your terms of delivery?
- We accept EXW, FOB, CIF, and CFR, allowing you to choose the most convenient option.
Send your message to this supplier
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