The material 309 is a quality standard for furnaces and other high temperature components. Compared to other grades for applications and due to the high tensile strength at elevated temperatures, 309 is ideal for application where special emphasis is placed on mechanical properties.
309S is a variant of 309 stainless steel with low carbon content, which is used for occasions requiring welding. The lower carbon content minimizes the precipitation of carbides in the heat affected zone near the weld, which may lead to intergranular corrosion (welding corrosion) of stainless steel in some environments.
Product Name
Stainless Steel Coils Grade 309/309S
Coil weight
3-10ton or as required
Width
100mm-1500mm or as required
Thickness
0.3mm-3mm or 3mm-30mm
Standard
ASTM/AISI ,AFNOR,BS,UNS,GB
Technique
Cold rolled/Hot rolled
Surface Treatment
2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, chequered, embossed, hairline, sand blast, Brush, etching, Hot rolled plate (HR), Cold rolled sheet (CR), SATIN (Met with Plastic Coated) etc
Thickness Tolerance
±0.01mm~ ±0.25mm
Material
Application
It is mainly used in chemical industry, petroleum, petrochemical and automotive industries.
MOQ
1 ton , We can accept sample order.
Shipment Time
Within 15-20 workdays after receiving deposit or workable L/C
Export Packing
Standard Export Seaworthy Package.Suit for all kinds of transport,or as required
Capacity
250,000 tons/year
309/309S
Chemical Composition:
Element
309
309S
309H
Chromium
22.0 min.-24.0 max.
22.0 min.-24.0 max.
22.0 min.-24.0 max.
Nickel
12.0 min.-15.0 max.
12.0 min.-15.0 max.
12.0 min.-15.0 max.
Carbon
0.2
0.08
0.04 min.-0.10 max.
Manganese
2.0
2.0
2.0
Phosphorus
0.045
0.045
0.045
Sulfer
0.03
0.03
0.03
Silicon
0.75
0.75
0.75
Iron
Balance
Balance
Balance
MECHANICAL PROPERTIES Of 309S STAINLESS STEEL COIL
Properties
Metric
Imperial
Tensile strength, ultimate
620 MPa
89900 psi
Tensile strength, yield (0.2%)
310 MPa
45000 psi
Izod impact
120 - 165 J
88.5 - 122 ft-lb
Modulus of elasticity
200 GPa
29000 ksi
Shear modulus
77 GPa
11200 ksi
Poissons ratio
0.3
0.3
Elongation at break (in 50 mm)
45%
45%
Hardness, Brinell (converted from Rockwell B hardness)
147
147
Hardness, Knoop (converted from Rockwell B hardness)
164
164
Hardness, Rockwell B
85
85
Hardness, Vickers (converted from Rockwell B hardness)
169
169
Physical properties of 309/309s grade stainless steel in the annealed condition
Properties
Metric
Imperial
Density
8 g/cm3
0.289 lb/in³
Melting point
1454℃
2650°F
309/309s Stainless Steel Coil Application
-Automotive
-Railway & Transport
-Architecture, Building & Construction
-Chemical & Petrochemical Industries
-Pharmaceutical
-Energy and Power
-Oil and Gas Industries
-Kitchenware and Food Processing Industries
-Plumbing And Overhead Water Tanks
FAQ:
Q1. What are your company's main products ?
A1: Our main products are stainless steel plate/sheet, coil, round/square pipe, bar, channel, etc.
Q2. How do you control quality ?
A2: Mill Test Certification is supplied with shipment, Third Party Inspection is available. and we also get ISO,SGS,Alibaba Verified.
Q3. What are the advantages of your company ?
A35: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.
Q4: What is the terms of packing?
A3: generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers requirement.
Q5:What is your delivery time?
A4: For stocks, we could transport the goods to loading port within 7 days after we received your deposit
For production period, it usually takes about 15 days-30 days after receiving the deposit.
Q6. Can you provide sample ?
A7: We can provide the samll samples in stock for free, as long as you contact us.
Customized samples will take about 5-7days.
Q7. How many coutries you already exported ?
A6: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey, Jordan,India, Vietnam, Thailand, South Korea etc.