Q345D Low Temperature Cold Drawn Seamless Steel Pipe Large Diameter Thick Wall

• Customization: Available
• After-sales Service: 20 Year
• Warranty: 20 Year
• Model NO.: Q345D
• Transport Package: Standard Airworthy Packaging
• Specification: Wall thickness: 1-200mm
• Trademark: 37Mn, 34Mn2V, 35CrMo
• Origin: Shandong
• HS Code: 7304319000
• Production Capacity: 50000ton/Year

Product Description

Product Description

Product Name	Small diameter thick wall steel pipe
Material	Carbon steel: 10#, 20#, 35#, 45#, 55#, Q235B, Q235C, CF53
	Alloy steel: 16Mn (Q345B), 20Cr, 40Cr, 15CrMo, 20CrMo, 28CrMo, 30CrMo, 35CrMo, 42CrMo, 20CrMnTi, 40MnMoV, 20Mn2, ZF6, 16MnCr5, 20MnCr5, 36Mn2V, 38Mn2V, 09CrCuSb (ND steel)
	Others: Special materials can be customized
Production range	Outer diameter: 6-299mm. 325-508mm. 530-820mm. 860-1200mm
	Wall thickness: 1-200mm
	Length: You can choose from irregular length, fixed length, multiple length, and even length
Delivery status	Annealed, cold bright
Finished product surface treatment	Immersed in anti-rust oil (including non-immersed)
	Pickling, passivation
Finished product packaging	Iron belt/plastic film/woven bag/sling
Steel pipe implementation standards	Seamless steel pipe for structure: GB/T 8162-2018
	Seamless steel pipe for conveying fluid: GB/T 8163-2018
	Cold drawn or cold rolled precision seamless steel pipe: GB 3639-2009
	Cold drawn special-shaped steel pipe: GB/T 3094-2012
	Seamless steel pipe for automobile stabilizer bar: GB/T 33821-2017
Chemical composition implementation standard	Alloy structural steel: GB/T 3077-2015
	High-quality carbon structural steel: GB/T 699-2015
	Low-alloy high-strength structural steel: GB/T1591-2018
Steel pipe testing equipment	Tensile testing machine, Rockwell hardness tester, eddy current flaw detector, chemical composition detector, magnetic particle flaw detector, metallographic analysis instrument, surface roughness measuring instrument, outside diameter micrometer, wall thickness micrometer, inside diameter micrometer, vernier caliper
Application	Automotive parts, anchor support, hydraulic pipe joints, petroleum machinery, geological drilling, fluid transportation, drill tools, motorcycles, bicycles, motor housings, agricultural machinery accessories, engineering machinery, fasteners, etc.
Production process	Round steel storage → Round steel inspection → Round steel sawing → Center hole drilling → Perforation → Pickling → Heading → Cold drawing or cold rolling (finishing rolling) → Annealing → Straightening → Head and tail cutting → Finished product inspection → Packaging → Delivery

Small-diameter thick-walled steel pipe refers to a seamless steel pipe with an outer diameter and wall thickness ratio of less than 20 and an outer diameter of less than 299mm. The current minimum diameter can reach 3mm and the minimum wall thickness is 1mm.
 

Specifications	Specifications	Specifications
6*1	18*5	25*6
8*1	18*6	25*7
8*1.5	19*1.5	25*8
8*2	19*2	27*2
10*1	19*2.5	27*2.5
10*1.5	19*3	27*3
10*2	19*4	27*4
10*2.5	19*5	27*5
12*1	20*1.5	27*6
12*1.5	20*2	27*7
12*2	20*2.5	28*2
12*2.5	20*3	28*2.5
12*3	20*4	28*3
14*1.5	20*5	28*3.5
14*2	20*6	28*4
14*2.5	22*1.5	28*5
14*3	22*2	28*6
14*4	22*2.5	28*7
16*1.5	22*3	30*2
16*2	22*4	30*3
16*2.5	22*5	30*4
16*3	22*6	30*5
16*4	25*1.5	30*6
16*5	25*2	30*7
18*1.5	25*2.5	30*8
18*2	25*3
18*2.5	25*3.5
18*3	25*4
18*4	25*5

Weight formula of small-diameter thick-walled steel pipe: (outer diameter-wall thickness)*wall thickness*0.02466=kg/meter (weight per meter); production process round tube billet, heating, perforation, three-roller oblique rolling, continuous rolling or extrusion, tube removal, sizing (or reducing), cooling, straightening, water pressure test (or flaw detection), marking, storage.

Packing and transportation

Company Profile

Shandong Hanbang Materials Co., Ltd. was established in 2011, mainly producing seamless steel pipes. The company is located in Liaocheng City, Shandong Province, with convenient transportation and high-speed rail running through the whole area.




Since its establishment, the company has been committed to producing high-quality products of various seamless steel pipes, and has now become a supplier integrating R&D, production, sales and service.

The company has advanced production and testing equipment and is the most competitive seamless steel pipe manufacturer in China, with strong technical force, complete testing equipment and a perfect quality assurance system.


The company adheres to the principle of "taking customers as the center and providing customers with satisfactory products".   It is committed to continuously strengthening quality management, improving and improving product quality.   The products are exported to North America, South America, the Middle East, Europe, Africa and other countries, and are well received by customers.

In addition, our company has been in business for many years and has a variety of product procurement resources and partners.   We can provide one-stop service to customers around the world and help purchase all kinds of steel pipes, aluminum products, colored stone tiles and other required products.
 

Order feedback

Customer visits and orders

FAQ

 

1. Q: Are you a manufacturer?
A:Yes, we are manufacturers. We have our own factory and our own company. I believe we will be the most suitable supplier for you.

2. Q: Can we visit your factory?
A: Sure, we welcome you to visit our factory , check our production lines and know more about our strength and quality.

3. Q: Do you have quality control system?
A: Yes, we have ISO, BV, MTC, certifications and our own quality control laboratory.Third party testing services are also available.

4. Q: Can you arrange the shipment for us?
A: Yes, we have designated sea freight and railway freight forwarders with decades of experiences and we get the best price with earlist vessel and professional service.

5. Q: How long is your delivery time?
A: Generally it is 7days if we have the exact goods in our stock. If not, it will take around 15-20 days to get goods ready for delivery.

6. Q: Can I get some samples?
A: We are glad to provide free samples to you, but we do not offer the freight.

7. Q: What is your after-sale service?
A: We provide after-sale service and offer 100% guarantee on our products.

8. Q: What is your MOQ?
A: 2 Ton