Products Description
ASTM A240 Type 309 Stainless Steel and ASTM A240 Type 309S Stainless Steel are both austenitic chromium-nickel stainless steel grades. They offer excellent resistance to corrosion and heat, as well as good strength at both room temperature and elevated temperatures.
ASTM A240 Type 309S Stainless Steel is very similar to Type 309, with the main difference being a lower carbon content. This reduced carbon content helps minimize the precipitation of carbides, which can improve the weldability of the material. Both types of stainless steel are essentially nonmagnetic in their annealed (fully softened) condition. However, they can exhibit slight magnetic properties when cold worked.These stainless steel grades are commonly used in applications where corrosion resistance and heat resistance are required. They are often employed in environments involving high temperatures, such as furnace parts, heat exchangers, and kiln linings. The nonmagnetic nature of these steels in the annealed state is beneficial in certain applications.Overall, ASTM A240 Type 309 Stainless Steel and ASTM A240 Type 309S Stainless Steel are similar in their characteristics, with the main difference being the carbon content and its impact on weldability. These grades are chosen for their excellent corrosion resistance, heat resistance, and strength properties, making them suitable for various industrial applications.Alloys 309 and 309S are austenitic chromium-nickel stainless steels commonly used in high-temperature applications. These alloys offer excellent corrosion resistance, oxidation resistance, and heat resistance, while also providing good strength at both room and elevated temperatures. The main difference between Alloys 309 and 309S lies in their carbon content.Alloy 309 (UNS S30900) is specifically designed for use in high-temperature corrosion resistance applications. It exhibits resistance to oxidation up to 1900°F (1038°C) under non-cyclic conditions. However, frequent thermal cycling can reduce its oxidation resistance to approximately 1850°F (1010°C).With its high chromium and low nickel content, Alloy 309 can be used in environments containing sulfur at temperatures up to 1832°F (1000°C). However, it is not recommended for highly carburizing atmospheres as it only offers moderate resistance to carbon absorption. Alloy 309 can be employed in slightly oxidizing, nitriding, cementing, and thermal cycling applications, although the maximum service temperature must be reduced.When heated between 1202°F and 1742°F (650°C and 950°C), Alloy 309 is susceptible to sigma phase precipitation. A solution annealing treatment at 2012°F to 2102°F (1100°C to 1150°C) can restore its toughness.On the other hand, Alloy 309S (UNS S30908) is a low carbon version of the alloy, primarily chosen for ease of fabrication. Alloy 309H (UNS S30909) is a high carbon modification developed for enhanced creep resistance. In most cases, the grain size and carbon content of the plate can meet the requirements of both 309S and 309H.Alloy 309 can be easily welded and processed using standard shop fabrication practices. The specifications for Alloys 309 and 309S are UNS S30900 and UNS S30908, respectively.
309S STAINLESS STEEL PIPES AND TUBES range
|
309S Stainless Steel Pipe & Tubes Specification |
ASTM A269, ASTM A213, ASTM A312, ASME SA269, ASME SA213, ASME SA312 |
|
309S Stainless Steel Pipe & Tubes Grades |
202, 304, 304L, 304H, 304LN, 309S, 310S, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, SMO 254, ALLOY 254, 6MO, 6MOLY, UNS S31254 ETC. |
|
309S Stainless Steel Pipe & Tubes Type |
Seamless / Welded / ERW / EFW / Cold Draw / Hot Finish / Cold Finish |
|
309S Stainless Steel Pipe & Tubes Outer Diameter Size |
Seamless - 1/2" NB TO 18" NB |
|
309S Stainless Steel Pipe & Tubes Wall Thickness |
Schedule 10 to Schedule 160 (3 mm to 100 mm Thickness) |
|
309S Stainless Steel Pipe & Tubes Length |
01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
|
309S Stainless Steel Pipe & Tubes Ends |
Plain Ends / Beveled Ends |
|
309S Stainless Steel Pipe & Tubes Delivery Conditions |
As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw |
|
309S Stainless Steel Pipe & Tubes Coating |
Electropolish, Mechanical Polish, Satin Finish, Passivated |
|
309S Stainless Steel Pipe & Tubes Other Testing |
Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiograph HIC Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc |
|
309S Stainless Steel Pipe & Tubes Dimension |
All Pipes Is Manufactured and Inspected / Tested to the Relevant standards includingASTM And ASME |
|
309S Stainless Steel Pipe & Tubes Value Added Services |
Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
|
309S Stainless Steel Pipe & Tubes Packaging |
Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
|
309S Stainless Steel Pipe & Tubes Shipment & Transportation |
By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes |
|
309S Stainless Steel Pipe & Tubes Material Test Certificate |
Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC |
Chemical Composition of 309S Stainless Steel Pipes and Tubes
|
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 |
0.20 |
0.08 |
0.04 min.-0.10 max. |
|
Manganese |
2.00 |
2.00 |
2.00 |
|
Phosphorus |
0.045 |
0.045 |
0.045 |
|
Sulfer |
0.030 |
0.030 |
0.030 |
|
Silicon |
0.75 |
0.75 |
0.75 |
|
Iron |
Balance |
Balance |
Balance |
Mechanical Properties of 309S Stainless Steel Pipes and Tubes
|
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 |
309S Stainless Steel Pipes and Tubes Physical Properties
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@ 0-100°C/32-212°F) |
14.9 µm/m°C |
8.28 µin/in°F |
|
Thermal conductivity (@0-100°C/32-212°F) |
15.6 W/mK |
108 BTU in/hr.ft².°F |
Thermal Properties for 309S Stainless Steel Pipes and Tubes
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@ 0-100°C/32-212°F) |
14.9 µm/m°C |
8.28 µin/in°F |
|
Thermal conductivity (@0-100°C/32-212°F) |
15.6 W/mK |
108 BTU in/hr.ft².°F |
309S Stainless Steel Pipes and Tubes Applications
The grade 309S steel can be made into plates, sheets, and coils to be used in the following:
Oven linings
Boiler baffles
Fire box-a sheets
Furnace components
Other high temperature containers.
|
309S Stainless Steel Pipe & Tubes Specification |
ASTM A269, ASTM A213, ASTM A312, ASME SA269, ASME SA213, ASME SA312 |
|
309S Stainless Steel Pipe & Tubes Grades |
202, 304, 304L, 304H, 304LN, 309S, 310S, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, SMO 254, ALLOY 254, 6MO, 6MOLY, UNS S31254 ETC. |
|
309S Stainless Steel Pipe & Tubes Type |
Seamless / Welded / ERW / EFW / Cold Draw / Hot Finish / Cold Finish |
|
309S Stainless Steel Pipe & Tubes Outer Diameter Size |
Seamless - 1/2" NB TO 18" NB |
|
309S Stainless Steel Pipe & Tubes Wall Thickness |
Schedule 10 to Schedule 160 (3 mm to 100 mm Thickness) |
|
309S Stainless Steel Pipe & Tubes Length |
01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
|
309S Stainless Steel Pipe & Tubes Ends |
Plain Ends / Beveled Ends |
|
309S Stainless Steel Pipe & Tubes Delivery Conditions |
As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw |
|
309S Stainless Steel Pipe & Tubes Coating |
Electropolish, Mechanical Polish, Satin Finish, Passivated |
|
309S Stainless Steel Pipe & Tubes Other Testing |
Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiograph HIC Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc |
|
309S Stainless Steel Pipe & Tubes Dimension |
All Pipes Is Manufactured and Inspected / Tested to the Relevant standards includingASTM And ASME |
|
309S Stainless Steel Pipe & Tubes Value Added Services |
Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
|
309S Stainless Steel Pipe & Tubes Packaging |
Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
|
309S Stainless Steel Pipe & Tubes Shipment & Transportation |
By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes |
|
309S Stainless Steel Pipe & Tubes Material Test Certificate |
Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC |
|
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 |
0.20 |
0.08 |
0.04 min.-0.10 max. |
|
Manganese |
2.00 |
2.00 |
2.00 |
|
Phosphorus |
0.045 |
0.045 |
0.045 |
|
Sulfer |
0.030 |
0.030 |
0.030 |
|
Silicon |
0.75 |
0.75 |
0.75 |
|
Iron |
Balance |
Balance |
Balance |
|
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 |
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@ 0-100°C/32-212°F) |
14.9 µm/m°C |
8.28 µin/in°F |
|
Thermal conductivity (@0-100°C/32-212°F) |
15.6 W/mK |
108 BTU in/hr.ft².°F |
