20# 10mm Precision Pipe Fittings Polished Carbon Steel Pipe

• Type: Stainless Steel Pipes
• Standard: ASTM, AISI, GB, JIS, DIN, EN
• Grade: 300 Series
• Certification: ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
• Shape: Round
• Technique: Cold Rolled/Cold Drawn
• Model NO.: Q195 Q235 Q355
• Surface Treatment: Bright Tube
• Length: Customized
• Wall Thickness: 1.0-22mm
• Outer Diameter: 6-219mm
• Raw Material: 10# 20# 35# 45# 20cr 40cr 20crmn
• Production Process: Cold Rolled / Cold Drawn
• Surface: Bright
• Pipe Type: Seamless Pipes
• Tolerance: 0+/-0.1mm
• Transport Package: Standard Airworthy Packaging
• Specification: customized
• Trademark: Shandong Hanbang
• Origin: China
• Production Capacity: 100000ton/Year

Product Description

 

Wall Thickness	1.5mm-100mm
Length	3m-12m
Outer diameter	22mm-650mm
Tolerance	±0.1MM
Shape	Round
Material	Q195-Q345, 10# ,20#,45#,195-Q345, Gr.B-Gr.50, S235JR, SS400, SPHC,BS-040A10 ,16mn, 40cr, 42crmo, 27simn, 12cr1mov, 15crmo, Gcr15, 25mn2
Technique	Cold rolled, Cold drawing
Standard	ASTM, DIN, JIS, BS
Surface treatment	Bright tube,Oiled or Non-Oiled
Delivery times	Delivered within 7-15 days after receipt of deposit
Package	1. Packed with 8 bundles tightened with metal belt and plastic wrapped if need 2. According to customer's requirement
Application	Widely used in furniture,interior decoration, fluid pipeline, petroleum and natural gas industry, drilling, pipeline, structure

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

 

Grade	Delivery status
	Cold Work/Hard (Y)		Cold Work/Soft (R)		Stress Relief annealing (T)
	Tensile strength (MPa)	Elongation (%)	Tensile strength (MPa)	Elongation (%)	Tensile strength (MPa)	Elongation (%)
	≥
10#	412	6	373	10	333	12
20#	510	5	451	8	432	10
35#	588	4	549	6	520	8
45#	647	4	628	5	608	7

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

 

Designation	Symbol	Description
Cold finished (hard)	BK	Tubes do not undergo heat treatment following the final cold forming and,thus, have a rather high resistance to deformation
Cold finished (soft)	BKW	The final heat treatment is followed by cold drawing involving limited deformation.Appropriate further processing allows a certain degree of cold forming(e.g. bending expanding).
Cold finished and stress-relleved	BKS	Heat treatment is applled following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree
Annealed	GBK	The last cold forming process is followed by annealing in a controlled atmosphere
Normalized	NBK	The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere

Detailed Photos

 

Process flow

Quality inspection

Company Profile

Our company is a research and development, production, operation as one of the group company, the company and subsidiaries mainly produce stainless steel series, carbon steel series, galvanized series, aluminum series and PPGI, PPGL series and other products of modern enterprises. The company covers an area of 36,000 square meters and employs more than 500 people. The leading products are seamless steel pipe, carbon steel bar, color coated plate, aluminum foil, famous brand products in Shandong Province. Hanbang brand is a well-known brand in China. The company won the seventh Mayor Quality Award. It is a single champion enterprise in Shandong Province, a quality benchmark enterprise in Shandong Province, a national contract-abiding and trustworthy enterprise, and a national "Architectural Decoration Color Steel Plate" and other 16 national industry standards. Products are exported to Russia, Canada, Australia, Africa, South America, Southeast Asia and other more than 40 countries and regions.

Client

Production

The mechanical engineering workshops of our factory are all equipped with numerical central control ,Our factory has been constantly improving the platform construction, improving the quality of technical team,strengthening the invention of products category, formed complete R & D system and production quality management system, wined high reputation in the iron and steel industry.

Packaging & Shipping

     1. wood pallet packing cover with water-proof paper
    2. steel pallet packing cover with water-proof paper
    3. wood box packing
    4. steel pallet packing cover with steel box
    5. in bundles with steel strip no extra packing
    6. packaged as customers' requirments.
 

 

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:1 ton