20cr Precision Tube Cutting Chamfer Aperture Precision Bright Fabricado En China

• Customization: Available
• After-sales Service: 20 Years Warranty
• Warranty: 20 Year
• Model NO.: 20 #, 45 #. Q345B, 16 mn, cr, 40 30 crmo, 42 crmo,
• Type: Seamless
• Technique: Cold Rolled
• Material: Carbon Steel
• Surface Treatment: Annealed, Cold and Bright.
• 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
• Application: Fluid Pipe, Boiler Pipe, Drill Pipe
• Processing Service: Welding, Punching, Cutting, Bending, Decoiling
• Alloy or Not: Alloy, Carbon Steel
• Thickness: 1-22mm
• Length: Customized
• Tolerance: 0+/-0.1mm
• Oiled or Non-Oiled: Non-Oiled
• Delivery Time: 8-14 Days
• Shape: Round.Square.Rectangle
• MOQ: 1 Ton
• Technology: Cold Rolled and Cold Drawn
• Standard: GB/T3639 GB/T8713 DIN2391-2 En 10305-1 HK15-2000
• Outer Diameter: 6-219mm
• Finished Product Surface Treatment: Soaking Anti-Rust Oil Pickling Passivation
• Transport Package: Standard Airworthy Packaging
• Specification: customized
• Trademark: Shandong Hanbang
• Origin: China
• HS Code: 7304319000
• Production Capacity: 50000ton/Year

Product Description

 

Product Description

 

PRODUCT PARAMETERS
material:	Carbon steel:	10 #, 20 #, 35 #, 45 #, S45C, 55 #, Q235B, Q235C, Q345D, CF53, A105.
	Alloy    steel:	16(Q345B),20Cr,40Cr,15CrMo,20CrMo,28CrMo,30CrMo,35CrMo,42CrMo, 4130,4140,20CrMnTi,40MnMoV,20Mn2,37Mn5,ZF6,16MnCr5,20MnCr5, 36Mn2V,38Mn2V,20Mn2,65Mn,15Mo3.
Production range:	Outer diameter: 10-120mm Wall thickness: 1.2-17mm Length: Optional variable size, fixed size, double size, full size
Delivery condition:	Annealed, cold and bright.
Finished product surface treatment:	soaking anti-rust oil pickling passivation
Steel pipe implementation standards:	Seamless steel pipe for structure :GB/T 8162-2018
	Seamless steel pipe for conveying fluid :GB/T 8163-2018 Steel pipe clamp
	Cold-drawn or cold-rolled precision seamless steel pipe :GB 3639-2009 Line standard
	Cold-drawn shaped steel pipe :GB/T 3094-2012
	Seamless steel pipe for automobile stabilizer bar :GB/T 33821-2017
Steel pipe testing equipment:	Tensile testing machine, Rockwell hardness machine, Eddy current testing, chemical composition testing instrument, magnetic powder flaw detection instrument, full phase analysis instrument, surface roughness measuring instrument, outer diameter micrometer, wall thickness micrometer, inner diameter dial indicator, vernier caliper

Chemical composition(%) of precision pipe's commin grade

Standard	Grade	C	Si	Mn	s	p	Cr
GB/T 699 GB/T 3639 GB3077 GB/T1591 GB/T 8163-2018	10#	0.07~0.13	0.17~0.37	0.35~0.65	≤0.035	≤0.035	\
	20#	0.17~0.23	0.17~0.37	0.35~0.65	≤0.035	≤0.035	\
	35#	0.32~0.39	0.17~0.37	0.35~0.65	≤0.035	≤0.035	\
	45#	0.42~0.50	0.17~0.37	0.50~0.80	≤0.035	≤0.035	\
	40Cr	0.37~0.44	0.17~0.37	0.50~0.80	≤0.035	≤0.035	0.08~1.10
	25Mn	0.22~0.29	0.17~0.37	0.70~1.00	≤0.035	≤0.035	≤0.25
	Q345B	≤0.20	≤o.50	≤1.7	≤0.035	≤0.035	≤0.3
	37Mn5	0.30~0.39	0.15~0.30	1.20~1.50	≤0.015	≤0.020	\

Conventional mechanical properties of precision pipe

Standard	Grade	Delivery Conditions
		BK(hard)		BKW(soft)
		Tensil Stength(MPa)	Make percentage elongation(%)	Tensile stength(MPa)	Make percentage elongation(%)
GB/T 3639 GB 3077	20#	≥550	≥10	≥490	≥15
	25Mn	≥600	≥12	≥540	≥15
	Q345B	≥620	≥12	≥550	≥15
	45#	≥645	≥8	≥625	≥15
	40Cr	≥784	≥14	\	\
	37Mn5	≥784	≥14	\	\

Dimensional tolerances of inner diameter

Standard	Inner Diameter(mm)	Inner Diameter Deviation(mm)
GB1801-79		H7	H8	H9	H10
	30	0~+21	0~+33	0~+52	0~+84
	30-50	0~+25	0~+39	0~+62	0~+100
	50-80	0~+30	0~+46	0~+74	0~+120
	80-120	0~+35	0~+54	0~+87	0~+140
	120-180	0~+40	0~+63	0~+100	0~+160
	180-250	0~+46	0~+72	0~+115	0~+185
	250-315	0~+52	0~+81	0~+170	0~+210
	315-400	0~+57	0~+89	0~+140	0~+230

Production process flow

Factory production site

Quality inspection process

Packing and transportation

 

Company Profile

Shandong Hanbang Materials Co., Ltd.was founded in 2011 and mainly produces seamless steel pipes.  In recent years, while retaining the advantages of seamless steel pipes, it has added comprehensive industrial companies with automobile radiators, intercoolers and industrial heat exchange radiators as the main body according to the advantages of the region.  The company is located in Liaocheng City, Shandong Province, with convenient transportation and high-speed railways running through the whole territory.

Since its establishment, the company has been committed to producing various high-quality products of automobile radiators, intercoolers, industrial radiators and precision seamless steel pipes. It 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 manufacturer of radiators, heat exchangers and seamless steel pipes. It has 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.

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