ASTM A268 TP405 Stainless Steel Seamless Tube for General Service
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Why are more and more engineering projects choosing ASTM A268 TP405 stainless steel seamless tubes instead of conventional ferritic or austenitic materials? The answer ultimately lies in long-term performance stability-reducing operational risks while achieving longer service life at a lower overall cost.
Our ASTM A268 TP405 Stainless Steel Seamless Tube is specifically designed for general service applications, offering excellent corrosion resistance, oxidation resistance, and reliable processing stability. All tubes are supplied in the annealed condition, ensuring uniform microstructure and consistent performance. In addition, pickling and passivation or mechanical polishing processes are applied to guarantee clean internal and external surfaces, free from cracks, folds, and inclusions, with controlled roughness to meet high cleanliness and fluid transportation requirements.
TP405 is a low-carbon ferritic stainless steel with a chemical composition of Cr 11.5–14.5% and C ≤ 0.08%, stabilized with elements such as aluminum (Al) to effectively reduce the risk of intergranular corrosion. In terms of hardness control, through precise solution treatment and annealing processes, the hardness of TP405 stainless steel round tubes is maintained at ≤ HRB 90, ensuring good cold workability and weldability while preventing cracking during on-site fabrication.
Regarding dimensional accuracy, all products are manufactured in strict accordance with ASTM A268 standards, with outer diameter tolerance controlled within ±0.5% and wall thickness tolerance within ±10%, meeting the requirements of heat exchangers, structural applications, and pressure systems. In terms of corrosion resistance, TP405 stainless steel tubes perform reliably in mildly corrosive environments such as water, steam, and certain chemical media. They also exhibit excellent oxidation resistance, capable of long-term service at temperatures up to approximately 650°C without significant scaling or spalling.
ASTM A268 TP405 Stainless Steel Seamless Tube Specification
| Outside Diameter | 6-203mm |
| Wall Thickness | 0.5-25mm |
| Length | Up to 25m |
| Standard | ASTM A268, ASME SA268 |
| Grade | TP410/TP405/TP420/TP430/TP430Ti/TP403/TP409/TP444/TP439/TP446,etc. |
| Delivery Condition | Pickled, Polished, Bright Annealed |
| Technique | Seamless/Welded |
| Application | Heat Exchanger, Heater, Condenser, Machining, Bearing Machining, API Service… |
| Marking | Standard, Grade, Size, Heat Number, Lot Number ... |
| Package | Bundle with plastic Cap, Plywood case, or as per customer's requirement. |
| Quality Requirement | Mill Test Certificate (EN 10204/3.1); 3.2, Third Part Inspection is acceptable. |
ASTM A268 TP405 Stainless Steel Heat Exchanger Tube Chemical Composition
| Element | C | Mn | Si | P | S | Cr | Ni | |
| TP405 | MIN | - | - | - | - | - | 11.5 | - |
| MAX | 0.08 | 1.0 | 1.0 | 0.040 | 0.030 | 14.5 | 0.5 | |
ASTM A268 TP405 Stainless Stee Tube Mechanical Properties
| GRADE | Tensile Stress, Mpa | Yield Stress, MPa | Elongation, % |
| TP405 | 60[415] | 30[205] | 20 |
Physical Properties of Type 405 Bright Annealed Tubes
| Density (lb / cu. in.) | 0.279 |
| Specific Gravity g/cm³ | 7.75 |
| Specific Heat (Btu/lb/°F – [32-212°F] | 0.11 |
| Thermal Conductivity | 416 |
| Modulus of Elasticity Tension | 29 |
405 SS Tube Pressure Rating
| Tube Diameter (inches) | Wall Thickness (inches) | Pressure Rating (at 600°F) |
|---|---|---|
| 1/2 | 0.065 | 1,500 psi |
| 1 | 0.095 | 2,500 psi |
| 3/4 | 0.085 | 2,000 psi |
| 2 | 0.150 | 4,500 psi |
| 1 1/2 | 0.120 | 3,500 psi |
| 3 | 0.250 | 7,500 psi |
| 2 1/2 | 0.200 | 6,000 psi |
SS 405 SMLS Tube Weight Chart
| Tube Size (mm) | Wall Thickness (mm) | Weight (kg/m) |
|---|---|---|
| 70 | 4 | 5.08 |
| 6 | 0.5 | 0.13 |
| 50 | 3 | 3.70 |
| 10 | 1 | 0.40 |
| 40 | 3 | 2.97 |
| 15 | 1.5 | 0.85 |
| 30 | 2.5 | 2.04 |
| 20 | 2 | 1.31 |
| 60 | 3.5 | 4.43 |
| 25 | 2 | 1.64 |
405 Stainless Steel Seamless Tube HS Code
| Hs Code | 73044100 |
|---|
Lead Time
In Stock: 3–7 Days. Requires only re-inspection, cutting, pickling and lubrication, or repackaging.
New Production: 30–45 Days. For TP405 tube billets; requires cold drawing/cold rolling, heat treatment (annealing), straightening, inspection, and pickling.
Custom Production / Billet Shortage: 60–90 Days. Requires the re-smelting and forging of tube billets directly from the steel mill; this significantly extends the lead time.
ASTM A268 TP405 Tube Price List
| Price List | Price in USD |
|---|---|
| Stainless Steel TP405 Tube Size: 25mm x 2.5m x 2mm | US $ 15.50 |
| ASTM A268 TP405 SS Tube Size: 6mm x 1m x 0.5mm | US $ 2.50 |
If you have project requirements, please contact us promptly to obtain the latest pricing for ASTM A268 TP405 heat exchanger tubes!
We will provide composition analysis, hardness test reports, and eddy current/hydrostatic test results.
ASTM A268 TP405 Stainless Steel Seamless Tube Supplier
As a specialized manufacturer with over 18 years of experience in stainless steel pipe production, GNEE holds ISO 9001 and SGS certifications. We supply ASTM A268 TP405 stainless steel seamless pipes specifically designed for general industrial services, effectively resolving common issues associated with standard stainless steel pipes in general industrial applications-such as poor dimensional accuracy, susceptibility to corrosion, insufficient hardness, and short service life.
Quality Control
Flattening Test: Ensures that the tubing does not develop cracks when subjected to compression.
Flaring Test: A mandatory requirement for heat exchanger tubes intended for expansion-joint installation.
Hydrostatic Test: Verifies that the tubing remains leak-free under pressure.
Eddy Current Test or Ultrasonic Testing (UT): Detects the presence of pinholes, cracks, or folds within the wall of seamless tubing.
Packaging Methods
End Protection: Plastic caps are fitted to the pipe ends to prevent the ingress of dust and debris.
Bundling: Pipes are bundled in a hexagonal configuration and reinforced externally with steel strapping.
Wooden Case Packaging: The standard packaging method for exports, effectively preventing deformation and surface scratches.
Marking: Each pipe is stamped or inkjet-printed with essential information (Standard, Material Grade, Dimensions, Heat Number, Batch Number, and Manufacturer); external packaging features attached tags.
