Carbon Steel Square Rectangular Welded Steel Pipes and Tubes

• After-sales Service: 24h/7 Online Service
• Warranty: 30 Years
• Type: Seamless
• Technique: Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Black
• Model NO.: Q235 Q345 Q355 Ss400 S23jr S355jr A36
• 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: Round
• Delivery Time: with 7 Days
• Color: Optional
• Brand: Runhai
• Style: Steel Pipe
• Application: Fluid Pipe, Boiler Pipe, Drill Pipe, etc
• MOQ: 25 Ton
• Steel Grade: Q195/Q235/Q345/Gr. a/B/C etc
• Size: 0.1-100mm Customized
• Standard: ASTM, AISI, JIS, GB, DIN, En
• Length: Customized
• Wall Thicknes: 1mm~12mm
• Outer Diameter: 20mm~508mm
• Packing: Standard Seaworthy Packing
• Advantages: Large Inventory, Fast Delivery
• Certs: CE, ISO, Mtc
• Transport Package: Standard Package
• Specification: Steel Pipe
• Trademark: Runhai
• Origin: China
• Production Capacity: 500000 Tons/Month

Product Description

 

Product Name	Square carbon Steel Pipe
Standard	API5L, ASTM A106 Gr.B, ASTM A53 Gr.B, ASTM A270, ASTM A249, ASTM A511,ASTM A778 ,ASTM A312,ASTM A358,ASTM A409,ASTM A213,ASTM A790,ASTM A268,ASTM A269,ASTM A554,ASTM B338,ASTM B673,ASTM B674,ASTM B677,ASTM B675, ASTM B676, ASTM B690,ASTM A928,ASME B36.19,ASMEB36.10,ASTMA179/A192/A213/A210/370WP91,WP11,WP2GB5310-2009,GB3087-2008,GB6479-2013,GB9948-2013,GB/T8163-2008, GB8162-2008,GB/T17396-2009 EN10216-5,EN10217-7,DIN 17456,DIN 17458 JIS G3463,JIS G3119,JIS G3446,JIS G3218,JIS G3258,JIS G3448,JIS H4631 DEP 31,DEP 40,DEP 20,DEP 32,DNV-OS-F101
Grade	Q195 = S195 / A53 Grade AQ235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2 Q345 = S355JR / A500 Grade B Grade C
Length	5.8~12.0 m or as customized
Surface Treatment	Prime quality (bared, oiled, color paint, 3LPE, or other anti-corrosive treatment)
Inspection	With Chemical Composition and Mechanical Properties Analysis; Dimensional and Visual Inspection, also with Nondestructive Inspection.
Application	Structure, Electric power transmission tower projects, Piling, Water, Oil & gas pipeline engineering, Mechanical industry, Municipal projects, Roads and its auxiliary facilities, etc.

Product Description

 

Carbon steel pipes are divided into two types: hot-rolled and cold-rolled (drawn) steel pipes. 1.Hot-rolled carbon steel pipes are divided into general steel pipes, low- and medium-pressure boiler steel pipes, high-pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes and other steel pipes.

2.Cold-rolled (dial) carbon steel pipes are divided into general steel pipes, low- and medium-pressure boiler steel pipes, high-pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, and other steel pipes, as well as carbon thin-wall steel pipes, alloy thin-wall steel pipes, and stainless steel pipes. Rusty thin-walled steel pipes, special-shaped steel pipes. The outer diameter of hot-rolled seamless pipe is generally greater than 32mm and the wall thickness is 2.5-75mm, the outer diameter of cold-rolled seamless steel pipe can be up to 6mm, the wall thickness can be up to 0.25mm, the outer diameter of thin-walled pipe can be up to 5mm, and the wall thickness is less than 0.25mm. Cold rolling has higher dimensional accuracy than hot rolling.

 

The production of our carbon steel pipes is tightly regulated and all of the pipes we produced have been fully tested to international standards to ensure we only supply the hightest products.

Detailed Photos

  

Application

Packaging & Shipping

 

Company Profile

 

Shandong Runhai Steel Co., Ltd. is located in Jinan, the capital of Shandong Province, with a registered capital of 31.68 million yuan. It is a professional company integrating domestic and foreign trade Steel sales company. 
 

The company's products involve carbon steel,galvanized steel,stainless steel , seamless/welded steel pipe tubes, PPGI/ PPGL coils ,ductile iron pipe,steel sheet pile,aluminum steel, roofing sheet tile, H&I beam/Angle bar/U&C channel,Silicon steel,steel rebar/deformed bar , iron wires, copper,etc. Product widely used in chemical, pharmaceutical, electric power, railway, automobile, papermaking and constructive engineering and other fields. 
 

The company cooperates with Shandong Iron and Steel, Tangshan Iron and Steel, Handan Iron and Steel Iron and steel, Jinxi Iron and Steel and other well-known domestic iron and steel enterprises have long-term close trade relations. 

The company has advanced wms and erm management systems to ensure that our customers have no worries during product consultation, procurement, ordering and use! Come, our company has won the trust and favor of our customers with high-quality products, first-class service and ultra- low prices, making our products all over the country Overseas! Thanks to the support of new and old customers, Runhai people will work harder and forge ahead, and give back to our customers with better and more efficient services! In order to ensure timely supply.
 

We set up a central warehouse in Tai'an with abundant inventory; we can provide you with the shortest supply cycle; at the same time, our company has An experienced technical consulting agency, for your correct choice of product model, we have established a marketing team with first-class efficiency and first-class service!

Certifications

FAQ

Q: Can you provide mill test certificate?
A: Yes! Mill Test Certificate for both hot rolled raw material coils and cold rolled coils are available.

Q: How can I get the sample?
A: FREE samples are available for your checking and testing. And to get free samples, you needto send us you detailed receiving address (including post code) and your DHL /FedEx/UPS account for collecting samples, courier cost will be paid in your side.

Q:How can I get your price list?
A: Please send us your email or fax and order information - Quantity, Specification (steel type,thickness, width, surface finish), then I can send you the price list.

Q: Packing details?
A: We choose suitable package and reinforce for various steel products when loading and transport. 

Q: What payment terms you can deal with?
A: Mostly we deal with T/T terms and L/C,for L/C we need to know which bank to open the L/C and after checking the bank information to decide whether to accept the L/C.If you have other preference, please negotiate.