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Name: 309/309S Stainless Steel Coil
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309/309S Stainless Steel Coil

309 stainless steel is a stainless steel material with excellent corrosion resistance and high temperature performance. It is commonly put into use in aviation, chemical industry, petroleum, food and other fields.

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Product Description

309/309S Stainless Steel Coil Description

309 stainless steel is an austenitic stainless steel comprised of higher chromium and nickel content. 309 stainless steel coil has excellent corrosion resistance in various corrosive media, such as acid, alkali, salt and other solutions, as well as organic solvents. It can still hold up good corrosion resistance at high temperatures. Moreover, it has good high-temperature strength and creep properties and can work stably for a long time in high-temperature environments. It is ideal for high-temperature equipment in aviation, chemical industry and other fields. 309 stainless steel coil can be formed and welded through various processing methods and has good processing performance. Lastly, 309 stainless steel is non-magnetic and works for manufacturing parts and components without magnetic requirements.

Product Parameters

Product Name	309/309S Stainless Steel Coil
Type	Steel Coil
Thickness	2.5mm-10.0mm
Length	2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc.
Width	610mm-2000mm
Standard	ASTM, AISI, JIS, GB, DIN, EN, etc.
Surface	BA, 2B, NO.1, NO.4, 4K, HL, 8K, etc.
Scope of Application	Widely used in high temperature and electrical industry, medical equipment construction, chemical, food industry, agriculture and ship parts, food and beverage packaging, Kitchen supplies, trains, airplanes, conveyor belts, vehicles, bolts, nuts, springs and screens, etc.
Certificate	ISO, SGS, BV, etc.
Production Technology	Hot Rolling, Cold Rolling
Edge Processing	Edging, Trimming

Chemical Composition

C	Si	Mn	Cr	Ni	S	P
≤ 0.08	≤ 0.75	≤ 2.0	22.0～24.0	12.0～15.0	≤ 0.03	≤ 0.045

Mechanical Properties

Tensile Strength Kb (MPa)	Yield Strength σ0.2 (MPa)	Elongation D5 (%)	Hardness
≥515	≥205	≥35	≤ 217HB

Physical Performance

Density(g/cm³)	Modulus of Elasticity(Gpa)	Coefficient of Thermal Expansion(10^-6/°C)	Coefficient of Thermal Conductivity(W/m*K)	Resistivity(ΜΩ. cm)
7.98	200	14.9	15.6	78

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FAQ

1. What products do you supply?
We supply carbon steel, galvanized steel, pre-painted steel, stainless steel, copper, aluminum, and structural steel sections. Our product range includes sheets, coils, pipes, bars, strips, angles, channels, I-beams, and H-beams.

2. Can you provide customized specifications?
Yes. We can supply products in different materials, grades, thicknesses, widths, lengths, and surface finishes. Please send us your detailed specifications so we can confirm availability.

3. What processing services do you offer?
Depending on the product and project requirements, we can provide cutting, slitting, custom sizing, and other processing services. Please provide your drawings, dimensions, tolerances, and processing requirements with your inquiry.

4. How do you ensure product quality?
Products are supplied according to the material, dimensions, specifications, and quality requirements confirmed in the order. Please inform us before ordering if your project requires specific inspections, tests, or documents.

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