A312 304 Stainless Steel
A312 304 stainless steel is a widely used material in various industries due to its excellent corrosion resistance, durability, and aesthetic appeal. This type of stainless steel is made up of 18% chromium and 8% nickel, giving it superior resistance to corrosion and oxidation.
In the construction industry, A312 304 stainless steel is often used for architectural features such as handrails, as well as for structural components like beams, columns, and frames. It is also utilized in the production of kitchen equipment, appliances, and utensils due to its hygienic properties and ease of cleaning.
In the automotive and transportation industry, A312 304 stainless steel is commonly used for exhaust systems, mufflers, and other components due to its ability to withstand high temperatures and corrosive environments.
A312 304 stainless steel is also commonly used in the medical industry for surgical instruments, implants, and equipment due to its biocompatibility and corrosion resistance.
Overall, A312 304 stainless steel is a versatile and reliable material that serves a wide range of industries and applications. Its strength, durability, and resistance to corrosion make it an excellent choice for long-lasting and high-quality products.
ASTM A269 TP304 Stainless Steel Seamless Tubes range
| ASTM A269 TP304 Stainless Steel Tubes Specification | ASTM A-249, A-268, A-269, A-270, A-554, A-688, A-778, DIN 17455, DIN 17456, 17457, DIN 17458 [Class 1] & Its equivalent ASME, DIN & EN Standard. |
| ASTM A269 TP304 Stainless Steel 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. |
| ASTM A269 TP304 Stainless Steel Tubes Type | Seamless / Welded / ERW / EFW / Cold Draw / Hot Finish / Cold Finish |
| ASTM A269 TP304 Stainless Steel Tubes Outer Diameter Size | Seamless - 6 MM OD TO 114.3 MM OD Welded / ERW- 10 MM TO 114.3 MM OD |
| ASTM A269 TP304 Stainless Steel Tubes Wall Thickness | 0.8 MM TO 4 MM Wall Thickness |
| ASTM A269 TP304 Stainless Steel Tubes Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
| ASTM A269 TP304 Stainless Steel Tubes Ends | Plain Ends / Beveled Ends |
| ASTM A269 TP304 Stainless Steel Tubes Delivery Conditions | As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw |
| ASTM A269 TP304 Stainless Steel Tubes Coating | Electropolish, Mechanical Polish, Satin Finish, Passivated |
| ASTM A269 TP304 Stainless Steel 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 |
| ASTM A269 TP304 Stainless Steel Tubes Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM And ASME |
| ASTM A269 TP304 Stainless Steel Tubes Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment / Annealed / Bright Annealed |
| ASTM A269 TP304 Stainless Steel Tubes Packaging | Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| ASTM A269 TP304 Stainless Steel 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 |
| ASTM A269 TP304 Stainless Steel 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 ASTM A269 TP304 Stainless Steel Seamless Tubes
The chemical composition of grade 304 Stainless Steel is outlined in the following table
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 304 | min. | - | - | - | - | - | 18.0 | - | 8.0 | - |
| max. | 0.08 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 10.5 | 0.10 | ||
| 304L | min. | - | - | - | - | - | 18.0 | - | 8.0 | - |
| max. | 0.030 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 12.0 | 0.10 | ||
| 304H | min. | 0.04 | - | - | -0.045 | - | 18.0 | - | 8.0 | - |
| max. | 0.10 | 2.0 | 0.75 | 0.030 | 20.0 | 10.5 | ||||
Mechanical Properties of ASTM A269 TP304 Stainless Steel Seamless Tubes
The Mechanical Properties of grade 304 Stainless Steel are displayed in the following table.
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 304 | 515 | 205 | 40 | 92 | 201 |
| 304L | 485 | 170 | 40 | 92 | 201 |
| 304H | 515 | 205 | 40 | 92 | 201 |
| 304H also has a requirement for a grain size of ASTM No 7 or coarser. | |||||
ASTM A269 TP304 Stainless Steel Seamless Tubes Physical Properties
Physical properties of 304 grade stainless steel in the annealed condition
Grade |
Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 304/L/H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Specification Comparison For Grade ASTM A269 TP304 Stainless Steel Seamless Tubes
Grade specifications for 304 grade stainless steel
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 304 | S30400 | 304S31 | 58E | 1.4301 | X5CrNi18-10 | 2332 | SUS 304 |
| 304L | S30403 | 304S11 | - | 1.4306 | X2CrNi19-11 | 2352 | SUS 304L |
| 304H | S30409 | 304S51 | - | 1.4948 | X6CrNi18-11 | - | - |
| These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted. | |||||||
ASTM A269 TP304 Stainless Steel Seamless Tubes Applications
The grade 304 steel can be made into plates, sheets, and coils to be used in the following:
Food processing equipment, particularly in beer brewing, milk processing & wine making.
Kitchen benches, sinks, troughs, equipment and appliances
Architectural panelling, railings & trim
Chemical containers, including for transport
Heat Exchangers
Woven or welded screens for mining, quarrying & water filtration
Threaded fasteners
Springs
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