| TP304 |
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| Basic grade of stainless steel. Good resistance to high temperature oxidation up to 900 C,Very good mechanical strength and creep resistance. Main applications : Pipe and heat exchanger tubes for chemical and petrochemical industries and for boilers. |
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| TP30L4 |
| Low Carbon version of TP 304 guaranted no creep resistance above 500 C. Good high temperature oxidation up to 900 C. Main applications: Pipe and heat exchanger tubes in chemical, petrochemical and food industries. |
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| TP310 |
| This grade combining excellent high temperature properties with good ductility and weldability, is designed for high temperature service. It resists oxidation in continuous service at temperatures up to 1150°C provided reducing sulphur gases are not present. It is also used for intermittent service at temperatures up to 1040°C. |
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| TP310S |
| This grade is used when the application environment involves moist corrodents in a temperature range lower than that which is normally considered “high temperature” service. The lower carbon content of 310S does reduce its high temperature strength compared to 310. |
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| TP316 |
| Good resistance to high temperature oxidation up to 900 C. Very good mechanical and creep strength resistance. Main applicatios : Pipe and heat exchanger tubes in chemical and petrochemical plant.Boilers and food industry. |
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| TP316L |
| Low carbon version of TP 316 which guaranteed no creep resistance above 500 C, Good high temperature oxidation resistance up to 900 C. Main applications : Pipe and heat exchanger tubes in chemical, petro chemical and food industries. |
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| TP316TI |
| General corrosion resistance properties rather similar to TP 316, Good resistance to high temperature oxidation up to 900 C. Main applications : Pipe and heat exchanger tubes in chemical, petrochemical and food industries.Boilers and furnace. |
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| Tp317L |
| Properties similar to TP 316L Main applications : Pipe and heat exchanger tubes. |
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| TP321 |
| High carbon steels prone more to intercrystalline attack in weld zones and slower cooling sections. These steel avoids such attacks through its stabilization with Ti. The corrosion behaviour of this alloy in natural environments is very similar to the TP 304/304L alloys. Satisfactory in many low-chloride waters, it is prone to pitting or crevice corrosion in seawater. Water treatment, galvanic protection and deaeration can influence the performance. |
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| TP347 |
| Properties similar to those of TP 321. Main applications : Pipes and heat exchanger tubes in chemical and petrochemical plant. |
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| TP904L |
| This high-alloy austenitic is very resistant to attack from diluted sulphuric acid, phosphoric acid and acetic acid. It resists pitting in neutralchloride solutions. Its resistance to stress corrosion cracking in some hot chlorides is much superior to that of the lower nickel austenites. This steel has good formability and weldability. |
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| TP446 |
| Highest heat resistance ferritic stainless steel. Excellent corrosion resistance to nitric acid, concentrated suffric and most alkalies. Good high temperature resistance to 1100 – 1140 C. Main applications : oil and gas furnaces, steam boilers, muffle tubes. |
