Excellent Quality Cold Rolled Polished 5mm 10mm 20mm 30mm 50mm 100m Stainless Steel Round/Square Pipe on Sale

• Type: Seamless
• Technique: Hot Rolled
• Material: Stainless Steel
• Surface Treatment: Polished
• 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
• Model NO.: Stainless Steel Pipe
• Thickness: 1mm-150mm
• Width: 0.5-100mm
• out Diameter: 6-1130 mm
• Technology: Seamless, Welded
• Transport Package: Standard Export Packing
• Specification: Customized
• Trademark: baogang
• Origin: Shandong
• HS Code: 7304319000
• Production Capacity: 5000+ Tons/Month

Product Description

Stainless Steel Pipes
Type	201,304,304L,316,316Ti,316L,321,309s,310,904L,410,410s,409,420 420J2,430,444,2205,2507,2304,301,317
Surface Treatment	Bright,Pickling white,Brushed,Color,perforated surface
Thickness	1mm-150mm
Technology	seamless ,welded
Shape	Round,square,rectangle,oval

 Classification of surface stainless steel

Surface	Feature	Manufacturing Method	Usage
NO.1	Silvery white, dull	Hot rolled to specified thickness	It does not need to have a shiny surface
NO.2D	Silvery white	After cold rolling, heat treatment and pickling are carried out	Common material, deep drawing wood
NO.2B	Luster is stronger than No.2D	After NO.2D treatment, a final light cold rolling is carried out on a polishing roll	Common material
BA	as bright as a sixpence	Non standard, but usually bright annealed surface finish with high surface reflectivity.	Building materials, kitchen utensils
NO.4	Grind	A polished surface obtained by grinding with a 150~180# abrasive belt	Building materials, kitchen utensils
NO.240	Fine grind	Grind with a 240# strop abrasive belt	kitchen utensils
NO.320	Very fine grinding	Grind with a 320# strop abrasive belt	kitchen utensils
NO.400	The gloss is close to BA	Grind with 400# polishing wheel	Common material,Building materials, kitchen utensils
HL	Hairline grinding	It has a large number of whetstone grains when it is used for grain grinding (150~240#)	Buildings, building materials
NO.8	Mirror	The mirror is ground with a polishing wheel	Reflector, decorative

  
Stainless steel composition table

CHEMICAL COMPOSITION
Classification	Grade	Chemical Composition(%)
		C	Si	Mn	P	S	Ni	Cr	Mo	N
Austenitic stainless steel	201	≤0.15	≤1.00	5.50-7.50	≤0.060	≤0.030	3.50-5.50	16.00-18.00		≤0.25
	301	≤0.15	≤1.00	≤2.00	≤0.045	≤0.030	6.00-8.00	16.00-18.00
	304	≤0.08	≤1.00	≤2.00	≤0.045	≤0.030	8.00-10.50	18.00-20.00
	304L	≤0.03	≤1.00	≤2.00	≤0.045	≤0.030	9.00-13.00	18.00-20.00
	305	≤0.12	≤1.00	≤2.00	≤0.045	≤0.030	10.50-13.00	17.00-19.00		0.12-0.2
	309S	≤0.08	≤1.00	≤2.00	≤0.045	≤0.030	12.00-15.00	22.00-24.00
	310S	≤0.08	≤1.50	≤2.00	≤0.045	≤0.030	19.00-22.00	24.00-26.00
	316	≤0.08	≤1.00	≤2.00	≤0.045	≤0.030	10.00-14.00	16.00-18.00	2.00-3.00
	316L	≤0.03	≤1.00	≤2.00	≤0.045	≤0.030	12.00-15.00	16.00-18.00	2.00-3.00
	317	≤0.08	≤1.00	≤2.00	≤0.045	≤0.030	12.00-15.00	18.00-20.00	3.00-4.00
	321	≤0.08	≤1.00	≤2.00	≤0.045	≤0.030	11.00-15.00	17.00-19.00
Ferritic stainless steel	409	≤0.08	≤1.00	≤1.00	≤0.045	≤0.030	≤9.00-13.00	10.50-11.75
	430	≤0.12	≤0.75	≤1.00	≤0.040	≤0.030	≤0.60%	16.00-18.00
	430LX	≤0.03	≤0.75	≤1.00	≤0.040	≤0.030		16.00-18.00	0.75-1.25	0.1-1.0
Martensitic stainless steel	410	≤0.15	≤1.00	≤1.00	≤0.040	≤0.030		11.50-13.50
	410S	≤0.08	≤1.00	≤1.00	≤0.040	≤0.030		11.50-13.50
	420	0.16-0.25	≤1.00	≤1.00	≤0.040	≤0.030		12.00-14.00
	440A	0.60-0.75	≤1.00	≤1.00	≤0.040	≤0.030		16.00-18.00
duplex stainless steel	2205	≤0.03	≤1.00	≤2.00	≤0.040	≤0.030	4.50-6.50	21.00-24.00		0.08-0.2
	2507	≤0.03	≤0.80	≤1.20	≤0.035	≤0.020	6.00-8.00	24.00-26.00	3.00-5.00	0.24-0.32

Stainless steel seamless pipe is a kind of hollow section, no joints around the strip of steel. The thicker the wall thickness of the product, the more economical and practical it is, the thinner the wall thickness, its processing costs will rise substantially.

The process of the product determines its limited performance. Generally, the precision of seamless steel pipe is low: uneven wall thickness, low internal surface brightness, high measuring cost, and the internal surface and pitting and black spots are not easy to remove; Its detection and shaping must be handled offline. Therefore, it embodies its superiority in high pressure, high strength and mechanical structure materials.

Company Profile

  Our company is a large international steel production and sales enterprise integrating production, sales, processing, distribution and service. The warehouse covers an area of more than 30,000 square meters with an annual output of 400,000 tons. GB, ASTM, JIS, DIN and other standards can be implemented. With Chengdu Iron and Steel Group, Metallurgical Group, Baosteel Group, Baosteel Group, Angang Group and other well-known domestic steel mills to establish a longterm cooperative relationship.

Certifications
  The testing equipment is complete and the technical force is strong.  The warehouse covers an area of more than 30000 square meters, with an annual production of 400000 tons.  GB, ASTM, JIS, DIN and other standards can be implemented.

FAQ:
Q1:Can I get samples before order ?
A:Yes, of course. Usually our samples are free,we can produce by your samples or technical drawings.
Q2:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q3:What product information do I need to provide?
A:You need to provide the grade, length, width, diameter, thickness, coating and the number of tons you need to purchase.
Q4:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept  third party inspection.
Q5:How do we trust your company?
A:We specialise in steel business for years , headquarter locates in Jinan, Shandong province, you are welcome to investigate in any ways, by all means, we have CE and ISO certificate, quality can be guaranteed, the most important point is that we ship enough weight as per the order.