Factory Price Black Welded Steel Pipe Round Tubes Cold Bending 6-12m
Factory price Black welded steel pipe round tubes cold bending 6-12m

Structure and shape features:
1. High flatness and dimensional accuracy:The production process determines its high surface flatness and good dimensional accuracy, which can meet more stringent design requirements and is conducive to construction and assembly.
2. The edges are clear, Make it more beautiful in appearance.
3. No weld: Avoid the quality problems that may be caused by the welding process.
Specifications:
item | Black welded steel pipe |
type | round |
Material | Q195 = S195 / A53 Grade A Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2 Q355 = S355JR / A500 Grade B Grade C |
Outer Diameter | 21.3-1512mm |
Wall Thickness | 1.2-51.2mm |
Hardness | Full Hard |
Yield (≥ MPa) | 460 |
Ultimate Strength (≥ MPa) | 350 |
standard | ASTM A53, API 5L, ASTM A252, ASTM A795, ISO65, DIN2440, BS1387. BS1139, EN10255, EN39, JIS3444, GB/T 3091 & GB/T13793 |
Tolerance | ±1% |
Processing Service | Bending, Decoiling, Welding, Punching, Cutting |
PRICE TERM | CIF CFR FOB Ex-Work |
MOQ | 1 Ton |
Package | Standard Sea package |
Product process:
It is including welding, cutting, inspection, packing, etc.
Quality assurance:
With advanced machine, We can check chemical component, mechanical property, water pressure, etc
Regular inspection: diameter, wall thickness, length, welding range, surface, etc

Application: Black welded steel pipe
1. Application in the construction field:
Structural use: Cold-formed square pipe is often used in building structure columns, beams, trusses and other load-bearing components. Its high strength and excellent toughness ensure the safety of buildings in the face of natural disasters (such as earthquakes, wind disasters, etc.).
Decorative use: Cold-formed square pipes can be made of various shapes and patterns through cold-formed forming for the decoration and beautification of building facades.
2. Mechanical manufacturing applications:
Structural parts: Cold-formed square pipes are used for structural parts of mechanical equipment, such as bases, supports, etc. Its dimensional accuracy and strength make the mechanical equipment more stable and durable.
Guide rails: Cold-formed square tubes are used to manufacture guide rails, such as slides, guide rods, etc., to maintain the accuracy of the movement of mechanical parts.

Yige special Steel science technology Co., Ltd
Our Services
1) Samples: free
2) Length: any length can be cut for you.
3) Quality: accept THE THIRD PARTY INSPECTION.
4) OEM: Acceptable
5) Marking: company logo, company name, specification can painted on pipes.
6) OC documents can be offered.

Certificate display:
Our business operation concept is: Provide one-stop comprehensive solutions for the steels sourcing of our customers, create value for customers and achieve mutual benefits.

Packing and delivery:
20ft container Max length 5850mm, Weight 25-27 tons
40ft container Max length 12000mm, Weight 25-27 tons
Bulk vessel MOQ 50 tons.

Cooperative partner:
SANY,SUNWARD,DOOSAN,ZOOMLION,CRRC,LEMKEN,ETC.

FAQ:
Q1: Could you do it according to the drawings?
A1:Yes, including the ends treatments, and surface treatments.
Q2: what is the terms of delivery?
A2: EXW, FOB, CIF, CFR, DDU
Q3:What do your factory do regarding quality control?
A3:From material to products, we inspect each process to keep good quality.
And BV/SGS inspection can be accepted.
Q4:Do you have a discount?
A4:We will do our best to provide you with these services at the best price and quality service.
Q5:What can you buy from us?
A5:Seamless steel pipe, welded steel pipe, stainless steel series, high-performance and high-precision of special-shaped steel pipes,seamless pipes and other cold drawn materials.
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