China 201 304 316 Hollow Section Stainless Welded Steel Tube
This stainless steel round tubing is suitable for transport of fluids and gases in chloride environments. The tubing is seamless for a smoother interior flow and greater burst strength than welded tubing. It has is alloyed with molybdenum and has higher resistance to pitting and crevice corrosion in chloride environments than 304 stainless steel. The tubing is annealed to restore formability for bending or flaring the tubing and has an operating temperature range of -325 to +1,500 degrees F. This seamless round tubing meets American Society for Testing and Materials (ASTM) A269 specifications for quality assurance and is suitable for use in applications such as food and beverage preparation equipment in wash down environments. Metal tubing, also called fractional tubing, is used to transfer liquids, air, or solids, and it is characterized by a round shape and a hollow center. Metal tubing is commonly made with various grades of austenitic stainless steel, aluminum, copper, brass, and titanium materials and their alloys. Construction types include seamless, welded, or welded and drawn. Seamless tubing has no seam or weld point, which enables it to better withstand high pressure and resist corrosion. Welded tubing, made by rolling and welding metal sheet stock, is weaker than and not as rounded as seamless tubing, but it has a more consistent wall thickness for tighter wall tolerances. Welded and drawn tubing, also known as "drawn over mandrel" (DOM), is typically welded tubing that is drawn through a die and over a mandrel to create a smooth inner diameter, which gives the tubing comparable corrosion resistance to seamless tubing while still offering welded tubing's tighter wall tolerances. Compression, vacuum, sanitary, and flared fittings connect tubing or redirect flow in a fluid handling system. Metal tubing is used in HVAC and plumbing systems and for applications in the aerospace, automotive, chemical processing, food and beverage, manufacturing, and medical industries.
Name | 201 / 304 / 316 stainless steel pipe | ||
Standard | ASTM A554, A249, A269 and A270, A312 | ||
Material Grade | 201 ( Ni 0.8%), 202 (Ni 3.5%~4.5%), 301(Ni 5%), 304 (Ni 8%, Cr 18%), 316 (Ni 10%, Cr 18%), 316L (Ni10%~14%) | ||
Outer Diameter | 6mm--159mm | ||
Thickness | 0.3mm - 3.0mm | ||
Length | 6m or as customers' reques | ||
Tolerance | a) Outer Diameter: +/- 0.2mm b) Thickness: +/- 0.02mm c) Length: +/- 5mm | ||
Surface | 180G, 320G, 400G Satin / Hairline 400G Mirror finish | ||
Application | Decoration construction, upholstery, industry instrumentChemical Composition of Material | ||
Certificate | ISO9001-2008,ASME, PED,GOST,CE |
ChemChemical Tableical Table | |||||||
Material Grade | C | Si | Mn | P | S | Cr | Ni |
STS 201 | ≤0.15 | ≤0.75 | 9.5-12.5 | ≤0.045 | ≤0.03 | 13-16 | 0.8-1.5 |
STS 304L | ≤0.035 | ≤2.0 | ≤0.045 | ≤0.03 | ≤1.00 | 8.0~12.0 | 18.0~20.0 |
STS 304 | ≤0.08 | ≤0.75 | ≤2.0 | ≤0.045 | ≤0.03 | 18-19 | ##### |
STS 316L | ≤0.08 | ≤1.00 | ≤2.0 | ≤0.035 | ≤0.03 | 10~14 | 16.0-18.5 |
STS 430 | ≤0.12 | ≤0.75 | ≤2.0 | ≤0.04 | ≤0.03 | 16-18 | ≤0.6 |
STS 304D | ≤0.100 | ≤1.00 | 5.00-8.00 | ≤0.045 | ≤0.015 | 18.12-20.5 | 2.00-4.5 |
STS 301 | ≤0.0800 | ≤0.3100 | ≤4.2000 | ≤0.0500 | ≤0.0037 | ≤15 | ≤5 |
STS 409L | ≤0.0800 | ≤0.4 | ≤0.25 | ≤0.02 | ≤0.03 | ≤11 | ≤0.08 |
Ningbo Yaoyi Stainless Steel Co. Ltd. was founded in 1996. Yaoyi covers an area of 50 acres, and near the Ningbo airport. Over the years, the company mainly produce and sell different kinds of stainless steel coils ,tubes and sheets. It also independently developed one kind of high tensile non-magnetic stainless steel-Y1 and one kind of hard magnetic stainless steel-Y6. Also, other products like SUS 201, 202, 301, 301Ni7, 304 and 316 and so on.
Yaoyi keeps the industry-leading quality for years. Because it had technological improvement on cold rolling mill and the heat treating process. Yaoyi is good at producing high hardness and high-tensile coils. Also, we specialize in customized material for different clients.
Our strength is the relationships with our customers, suppliers, and employees. Moreover, the quality management system (REGISTERED TO ISO 9001:2008) ensures our quality and the service.
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