ASME SA268 TP405 Seamless Tube for Power Plant Feedwater Pump Shafts
ASME SA268 TP405 Seamless Tube for Power Plant Feedwater Pump Shafts
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Overview
ASTM A268 TP405 is a standard specification for seamless and welded ferritic and martensitic stainless steel tubing for general corrosion resistance and high temperature service. The "TP" in the name stands for "Seamless Pipe" and the "405" stands for a specific grade of stainless steel.
Composition
Chemical Composition: The composition of TP405 stainless steel typically includes chromium, manganese, silicon, sulfur, phosphorus, carbon, and iron. It is a ferritic stainless steel with good oxidation resistance.
Mechanical Properties
Tensile Requirements: The material must meet certain tensile requirements, including minimum tensile strength, yield strength and elongation. These properties ensure that the pipe has the necessary mechanical strength.
Sizes and Specifications
SIZE RANGE: ASTM A268 TP405 stainless steel seamless steel pipe is available in a variety of sizes. This standard specifies the outside diameter and wall thickness requirements for steel pipe.
Heat Treatment
HEAT TREATMENT: Steel pipe under this specification may be subjected to heat treatment processes such as annealing or solution annealing to achieve the desired properties and microstructure.
Chemical Composition
| C % | Mn % | P % | S % | Si % | Cr % | Ni % | Al % |
| 0.08 max | 1.00 max | 0.04max | 0.03 max | 1.00 max | 11.5-14.5 | 0.50 max | 0.10-0.30 |
Mechanical Properties of ASTM A268 TP405 Stainless Steel Pipes
| Tensile Strength, Mpa | Yield Strength, MPa | Elongation, % | Hardness, HB |
| 415 min | 205 min | 20 min | 207 max |
Specification
| Specifications | ASTM A268 / SA 268 |
| Dimensions | ASTM, ASME and API |
| Size | 1/4″ (6.25mm) to 8″ (203mm), WT 0.02″ (0.5mm) to 0.5″(12mm) |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Specialized in | Large Diameter Size |
| Length | Single Random, Double Random & Cut Length. |
| Form | Round, Square, Rectangular, Hydraulic Etc |
| End | Plain End, Beveled End, Treaded |
Martensitic stainless steel tube S40500 Typical Usages
- Boiler and superheater tubes for power plants
- Heat exchanger tubes for chemical processing plants
- Automotive exhaust systems
- Aircraft components
- Surgical and dental instruments
- Cutlery and kitchen knives
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