Stainless Steel 310/310L/310H Fittings

SS 310/310S Pipe Fittings Grade 310 is an austenitic stainless steel that is an average carbon steel, often used in applications that require elevated temperatures, like heater parts and heat treatment equipment. In incessant service, it can withstand temperatures up to 1150°C, while in irregular service, it can withstand temperatures up to 1035°C. Grade 310S, on the other hand, is the low carbon side of grade 310. As they contain 25% chromium and 20% nickel, these grades are extremely resistant to oxidation and corrosion due to their high chromium and nickel content. The 310S grade is a low carbon version with a lower level of embrittlement and sensitization in service due to its lower carbon content.

Due to their high concentration of chromium and nickel, they can be used in environments with falling sulfur and hydrogen sulfide (H2S) due to their high chromium and nickel contents. It is common to find them being used in environments where there is a fair amount of carburization, such as those found in petrochemical environments. It is recommended that other heat resistant alloys be selected for environments that are more severe in terms of carburizing. There is a risk of thermal shock when using Grade 310 for recurrent liquid quenching due to its high melting point. Because of its hardness and low magnetic permeability, this grade is often used in cryogenic applications due to its low magnetic permeability and hardness.

Due to the extra austenitic nature of these grades of stainless steel, they cannot be toughened by heat treatment, as with extra austenitic grades. There is a possibility of toughening them by cold work, but this is a technique that is rarely implemented.

Stainless steel 310/310S also contains elements like Carbon, Manganese, Silicon, Phosphorus, Sulphur, Chromium, and Nickel.

Features: Grade 0.2% Proof Stress Mpa, Tensile Strength Mpa, Elongation%, Hardness (HV)

Fabrication of Grade 310/310S: Grade 310/310S are forged in a temperature range between 975°C and 1175°C, depending on the product specifications. The lower end of the range is finished lightly with a light finish while the top end of the range is subjected to heavy work down to 1050°C. It is possible to reduce the stress caused by the forging process by annealing after the metal has been forged. As far as cold forming is concerned, the alloys can be readily processed by the normal methods and equipment.

During welding, grades 310/310S are welded using electrodes that match grade 310/310S and filler metals that match grade 310/310S. As a rule, there is no need for preheating and postheating, but annealing actions are essential if corrosion is expected in liquids filled post weld solutions. In order to restore full aqueous decay resistance to an alloy after welding, pickling and passivation of the outside are necessary to remove high-temperature oxides. For elevated temperature service, this treatment is not necessary, however welding slag must be thoroughly removed before welding can begin.

Heat Treatment: Heat treatment type 310/310S are answer annealed by heat to temperature range 1040-1065°C, hold at temperature until thoroughly soaked, and then water quenching.

The Stainless Steel 310/310S Buttweld Pipe Fittings that are available from Dinesh Tube India are of the highest quality and they are specialized in supplying quality fittings to suit your requirements. As part of the buyer's requirements, the product is available at different standards, specifications, and at the most competitive prices on the market.

Our SS 310 Socketweld Tee and SS 310S Socket Weld Lateral Tee Fittings are designed to be used where sensitisation and subsequent corrosion as a result of high temperature gases or condensates are likely to be encountered during shutdown operations. As a result of the excellent ductility and weldability of grade 310 (UNS S31000) and its various subgrades, it offers excellent high temperature properties. As UNS 531009 has a restricted carbon content that excludes the lower end of the 310 range, it is the grade of choice for applications requiring high temperatures as it has a reduced carbon content. In what is normally referred to as a "high temperature" environment, grade 310S (UNS S31008) is used when the application environment involves moist corrosion agents at lower temperatures than those commonly associated with "high temperature" applications. As a result of the lower carbon content of 310S, it does reduce its strength at high temperatures as compared to 310H.

DUAL CERTIFICATION

As a consequence, many of the 310H and 310S grades are produced as "Dual Certified" products - primarily in plate and pipe form. It is important to note that these items are chemically and mechanically compliant with both 310H and 310S specifications. For some high temperature applications, products complying with 310 only or dual certified 310 and 310S may have a carbon content of less than 0.04%, which is not acceptable for some products that are 310 only or dual certified 310 and 310S.

TYPICAL APPLICATIONS

Furnace parts are available for purchase. Parts for oil burners. Cartridges. Baskets and jigs for heat treatment. The heat exchanger is one of the components of the heat exchanger. The welding of electrodes and filler wire.

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