Q235 Q345 Q355 Hollow Section Square Pipe

• After-sales Service: Change Against Defect or Technical
• Warranty: 1 Year
• Type: Welded
• Technique: Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Black
• Usage: Construction & Decoration
• Section Shape: Round
• Size: 10*10-100*150mm
• Thickness: 0.24-3mm
• Quality Control: Dimension/Visual
• Mtc: En10204 3.1
• Transport Package: in Bundles or as Your Requiremet
• Specification: ASTM
• Trademark: Kingmetal
• Origin: Made in China
• HS Code: 730611
• Production Capacity: 3000tons

Product Description

Q235 Q345 Q355 Hollow Section Square Pipe

Material: 304, 201, 316, 316L
Size:
10×10,12×12,18×18, 23×23, 38×38, 50×50, 70×70,100×100, 20×10, 23×10, 24×12, 25×13, 36×23, 40×20, 50×20, 60×15, 75×45, 80×60, 95×45,100×60,150×100 mm or customized
Thickness: 0.24-5 mm
Finishing:
A: sanded  B: 400#-600# mirror  C: hairline brushed  D: TIN titanlum
E : HL brushed & mirror (two kinds of finishing for one pipe)

Material	304:0cr18ni9, 0cr17ni8 201:1cr17mn6ni5n,1cr13mn9ni1n 316:0cr17ni12 or as customer's request
Size(round pipe)	9.5, 12.7, 15.9, 17, 18, 19.1, 20, 21, 22.2, 23, 25.4, 28, 318, 35, 60, 63.5, 73, 76.2, 88.9, 101.6,  114.3, 127, 133, 159, 168, 219 mm or customized
Size (square pipe)	10×10,12×12,18×18,23×23,38×38,50×50,70×70,100×100,20×10,23×10,24×12,25×13,36×23, 40×20,50×20,60×15,75×45,80×60,95×45,100×60,150×100 mm or customized
Size (oval pipe)	30×15,80×40 mm os customized
Thickness	0.24-3 mm
Length	6m or according to customer's request
Outer diameter	6.35-219mm
Tolerance	Outer diameter :±0.2mm
	Thickness :±0.02mm
	Length :±0.5mm
Process method	Code drawn, annealed with nitrogen protection, ultrasonic,automatic shape, polished
Finishing	A: sanded  B: 400#-600# mirror  C: hairline brushed  D: TIN titanlum E : HL brushed & mirror (two kinds of finishing for one pipe)

Chemical Composition
Material	C	Si	Mn	P	S	Cr	Ni
201	≤0.12	≤0.75	9.5-12.5	≤0.045	≤0.03	13-16	0.8-1.5
304	≤0.08	≤0.75	≤2.0	≤0.045	≤0.03	18-19	8-10
316	≤0.08	≤1.00	≤2.0	≤0.035	≤0.03	10-14	16.0-18.5
430	≤0.12	≤0.75	≤2.0	≤0.04	≤0.03	16-18	≤0.6

Company Profile
From 1989 to now, Kingmetal Steel focus on manufacturing and distributing pipeline products including piping, fitting, flange, valve and fastener in stainless, carbon, alloy and duplex steel.
Kingmetal has a factory to manufacture seamless stainless steel pipe from DN6 to DN600 and distribute seamless steel pipe and fitting from top brand manufacturers such as Baosteel, Hengsteel, Tiansteel and Pansteel etc.
All of products are strictly compliance with standard, 100% inspection passed including visual, dimension and PMI test before shipment.
Both our sales and logistic teams are over 10 years of experiences and training frequently.
After- sales service with high efficiency, if any products are short quantity/weight or damaged caused by manufacturing, design or transportation can be compensated.

Why choose us?
One-Stop Solution
We have thousands of total production experience, from raw materials to finished products.
Competitive Price
Large scale purchase, standardized production process and efficient management make our price competitive.
Quick Shipping
Years of export experience enable us to control the transportation time more accurately.
Quality Control
The standardized production process, comprehensive management system, professional testing equipment
Special material customization
We support the customization of various complex materials
OEM/ODM
We support any form of OEM/ODM customization requirements.