YUHONG HOLDING GROUP CO., LTD
YUHONG HOLDING GROUP CO., LTD
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ASTM A268 TP405 Stainless Steel Heat Exchanger Tube , Petrochemical Industry
ASTM A268 is a standard specification issued by ASTM International that covers seamless and welded ferritic stainless steel tubes used in heat exchangers, condensers, and similar applications. This standard specifies requirements for tubes made from various grades of ferritic stainless steel, which are characterized by their chromium content and ability to perform well at elevated temperatures.
TP405 refers to a particular grade of stainless steel under the Type 400 series of alloys. It is a ferritic stainless steel that is alloyed with chromium (typically 11-13%) and is known for its excellent oxidation and corrosion resistance in high-temperature environments. TP405 (also known as UNS S40500) has better weldability and formability than other ferritic grades like 409 and 430, which makes it suitable for applications like heat exchangers where high thermal efficiency and strength are critical.
Chemical Composition(%):
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo | Cu | N |
| ASTM A268 TP405 | 0.08 max | 1.00 max | 1.00 max | 0.045 max | 0.030 max | 11.0 - 13.0 | 0.50 max | 0.60 max | 0.25 max | 0.10 max |
Mechanical Properties:
| Grade | Tensile Strength | Yield Strength | Elongation | Hardness |
| ASTM A268 TP405 | 480 - 620 MPa (70 - 90 ksi) | 205 MPa (30 ksi) | 20-25% (depending on thickness) | Brinell Hardness: 160-190 HB |
Applications:
