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About ASTM A312 TP904L Stainless Steel Seamless Pipe
Stainless Steel is often Referred to as Corrosion-Resistant Steel – it does not stain, Corrode or Rust as easily as Normal Carbon Steel. It would however be misleading to say it is Corrosion-Proof. It differs significantly from standard Carbon Steel due to the amount of Chromium present, which limits surface Corrosion unlike Carbon Steel which will Rust when exposed to air and any moisture in the Atmosphere. Due to its Anti-Oxidation Qualities, Stainless Steel is often a Popular Solution.
Where low maintenance and corrosion resistance is required, stainless steel plates are a natural choice and are used in a diverse range of applications from modern Architecture for cladding or fascia’s, to the food hygiene industry due to its Anti-Bacterial Qualities. Savoy Piping Inc., Supplies Stainless Steel in a wide variety of Grades and Aesthetic Finishes. There are many options available – for example adding carbon during the forming process will make the stainless steel more durable and stronger too.
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Stainless Steel Seamless(SMLS) pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. As the manufacturing process does not include any welding, Seamless Pipes are perceived to be stronger and more reliable. Historically, seamless pipe was regarded as withstanding pressure better than other types, and was often more available than Welded Pipe.
C&N is a professional manufacturer of stainless steel pipe in China,we produce high quality SS SMLS pipes.
Grade 904L stainless steel is a non-stabilized austenitic stainless steel with low carbon content. This high alloy stainless steel is added with copper to improve its resistance to strong reducing acids, such as sulphuric acid. The steel is also resistant to stress corrosion cracking and crevice corrosion. Grade 904L is non-magnetic, and offers excellent formability, toughness and weldability.
Grade 904L contains high amounts of expensive ingredients, such as molybdenum and nickel. Today, most of the applications that employ grade 904L are replaced by low-cost duplex stainless steel 2205.
Chemical Composition of ASTM A312 TP904L Stainless Steel Seamless Pipes
The chemical composition of grade 904L Stainless Steel is outlined in the following table
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu | |
| 904L | min. max. | – 0.02 | – 2 | – 1 | – 0.045 | – 0.035 | 19 23 | 4 5 | 23 28 | 1 2 |
Mechanical Properties of ASTM A312 TP904L Stainless Steel Seamless Pipes
The Mechanical Properties of grade 904L 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) | Brinell (HB) | ||||
| 904L | 490 | 220 | 36 | 70-90 typical | 150 |
ASTM A312 TP904L Stainless Steel Seamless Pipes Physical Properties
Physical properties of 904L grade stainless steel in the annealed condition
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Elec Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | At 20°C | At 500°C | |||||
| 904L | 7900 | 190 | 15 | – | – | 11.5 | – | 500 | 952 |
Specification Comparison For Grade ASTM A312 TP904L Stainless Steel Seamless Pipes
Grade specifications for 904L grade stainless steel
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 904L | N08904 | 904S13 | – | 1.4539 | X1NiCrMoCuN25-20-5 | 2562 | – |
SMLS PIPE ASTM A312 TP904L, 2” SCH.160 X 6M LENGTH, BE
SMLS PIPE ASTM A312 TP904L, 2” Thickness Measurement
SMLS PIPE ASTM A312 TP904L, 2” Dimension Measurement
ASTM A312 TP904L Stainless Steel Seamless Pipes Apllication
The grade 904L steel can be made into plates, sheets, and coils to be used in the following:
- Chemical Processing
- Food Processing – equipment and storage
- Petroleum Refining – fluid catalytic cracking units, polythionic acid service
- Pharmaceutical Production
- Waste Heat Recovery – recuperators
- Wiring in electrostatic precipitators
- Oil refinery components
- Seawater cooling devices
- Gas scrubbing plants
- Pulp and paper processing industries
- Acetic, phosphoric and sulphuric acid processing plants
ASTM A312 TP904L Stainless Steel Seamless Pipes Range
| ASTM A312 TP904L Stainless Steel Seamless Pipes Specification | ASTM A269, ASTM A213, ASTM A312, ASME SA269, ASME SA213, ASME SA312 |
| ASTM A312 TP904L Stainless Steel Seamless Pipes 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 A312 TP904L Stainless Steel Seamless Pipes Type | Seamless / Welded / ERW / EFW / Cold Draw / Hot Finish / Cold Finish |
| ASTM A312 TP904L Stainless Steel Seamless Pipes Outer Diameter Size | Seamless – 1/2″ NB TO 18″ NB Welded / ERW- 1″ NB TO 16″ NB EFW – 8″ NB TO 110″ NB |
| ASTM A312 TP904L Stainless Steel Seamless Pipes Wall Thickness | Schedule 10 to Schedule 160 (3 mm to 100 mm Thickness) |
| ASTM A312 TP904LStainless Steel Seamless Pipes Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
| ASTM A312 TP904L Stainless Steel Seamless Pipes Ends | Plain Ends / Beveled Ends |
| ASTM A312 TP904L Stainless Steel Seamless Pipes Delivery Conditions | As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw |
| ASTM A312 TP904L Stainless Steel Seamless Pipes Coating | Electropolish, Mechanical Polish, Satin Finish, Passivated |
| ASTM A312 TP904L Stainless Steel Seamless Pipes 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 A312 TP904L Stainless Steel Seamless Pipes Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM And ASME |
| ASTM A312 TP904L Stainless Steel Seamless Pipes Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment / Annealed / Bright Annealed |
| ASTM A312 TP904L Stainless Steel Seamless Pipes Packaging | Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| ASTM A312 TP904L Stainless Steel Seamless Pipes 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 A312 TP904L Stainless Steel Seamless Pipes 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 |
