Carbon Steel Thin Wall Tube Q235 Q345 Q195 Q215 St37 St42 ERW Welded/Seamless Pipe Cold Rolled Carbon/Stainless Steel/Galvanized Rectangle Square Tube Pipe

• Customization: Available
• After-sales Service: Acceptable for Third-Party Testing
• Warranty: 20 Years
• Model NO.: Q235 Q345 Q195 Q215 St37 St42 etc
• Type: Welded
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Black
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Square
• Payment Termpayment Term: 30%Tt Advance + 70% Balance
• Length: 1-12m
• Delivery Time: 3-5 Working Days
• MOQ: 1 Ton
• Transport Package: Standard Shipping Packaging
• Specification: 0.1-25mm(Thickness)
• Origin: China
• HS Code: 7306610000
• Production Capacity: 6000 Tons/Month

Product Description

Material	10#, 20#, 45#, 16Mn, A53(A,B), Q235, Q345, Q195, Q215, St37, St42, St37-2, St35.4, St52.4, ST35
Wall Thickness	0.5MM~25MM
Size	10x10-600x600mm
Length	Length:Single random length/Double random length 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual request
Standard	API 5L, ASTM A53-2007, ASTM A671-2006, ASTM A252-1998, ASTM A450-1996, ASME B36.10M-2004, ASTM A523-1996, BS 1387, BS EN10296, BS 6323, BS 6363, BS EN10219, GB/T 3091-2001, GB/T 13793-1992, GB/T9711
Grade	Grade A, Grade B, Grade C
Surface Treatment	1. Galvanized,color painting or others 2. Transparent oil,anti-rust oil 3. According to clients requirement
Product Application	1. Fence, greenhouse, door pipe,greenhouse 2. Low pressure liquid, water, gas, oil, line pipe 3. For both indoor and outdoor the building construction 4. Widely used in scaffolding construction which is much cheaper and convenient
Origin	ShanDong China
Delivery Time	Usually within 5-7 days after receipt of advance payment

Square tube is a hollow square cross-section lightweight thin-walled steel tube, also known as steel cold-bent profile. It is a square section steel with a square cross-section shape and size made of Q235 hot-rolled or cold-rolled strip or coil as the base material, cold bending and then high-frequency welding. In addition to the thickening of the wall thickness, the corner size and edge straightness of hot-rolled extra thick-walled square tubes reach or even exceed the level of resistance welded cold-formed square tubes.

It has good comprehensive mechanical properties, good weldability, cold and hot processing properties and corrosion resistance, and has good low-temperature toughness.

The uses of square tubes include construction, machinery manufacturing, steel construction and other projects, shipbuilding, solar power generation brackets, steel structure engineering, power engineering, power plants, agricultural and chemical machinery, glass curtain walls, automobile chassis, airports, boiler construction, highway railings, House construction, pressure vessels, oil storage tanks, bridges, power station equipment, lifting and transportation machinery and other higher load welded structural parts, etc.

Shandong Xinhe International Trading Co., Ltd. is a manufacturer specializing in the production of carbon steel. We have our own production factory and complete logistics system. We mainly produce and sell steel plates, steel coils, steel rods, steel pipes, etc. We can also customize them according to customer requirements. Welcome to contact me

1.Q: Are you a manufacturer or trader?

   A: We are a professional steel manufacturer.

2.Q: How is your Payment Term?

   A:One is 30% deposit by TT before production and 70% balance against copy of B/L; 

   the other is Irrevocable L/C 100% at sight.

3.Q:  Can we visit your factory?

   A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.

4.Q: Can you provide sample?

   A: Yes, for regular sizes sample is free but buyer need to pay freight cost.

5.Q:Why choose our company ?

   A:(1)We are specialized in this industry for more than 10 years
      (2) We have excellent export services
      (3) Currently, we have partners in many countries around the world.

6.Q: What's your market ?

   A:South American/Africa/Middle East/Europe/Korea/Russian Federation ETC. 

7.Q: What's your delivery time ?
   A:Regular lead time is 5-7 days after received deposit.