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Stainless Steel 310 | SUS310s | 310s Stainless Steel Supplier Malaysia

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We are the Stainless Steel 310 supplier Malaysia. SUS310, 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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E Steel Sdn Bhd - A Leading Supplier of Stainless Steel SUS310

Stainless Steel 310 (or known as SUS310, SUS310S, 1.4845)

Chemical Formula :

Fe, <0.25% | C, 24-26% | Cr, 19-22% | Ni, <2% | Mn, <1.5% | Si, <0.45% | P, <0.3% | S

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Background :

Grade 310, 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.

Grade 310S (UNS S31008) 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.

Like other austenitic grades, these have excellent toughness, even down to cryogenic temperatures, although other grades are normally used in this environment.

Grade 310L (and proprietary versions of this grade), is a 0.03% maximum carbon version of 310, sometimes used for very specific corrosive environments, such as urea production.

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Key Properties :

These properties are specified for flat rolled product (plate, sheet and coil) in ASTM A240/A240M. Similar but not necessarily identical properties are specified for other products such as pipe and bar in their respective specifications.

GradeCMnSiPSCrMoNiN
310min.-----24.0-19.0-
max. 0.252.001.500.0450.03026.022.0
310Smin.-----24.0-10.0
max. 0.082.001.500.0450.0326.022.0

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Mechanical Properties Typical Mechanical Properties for Grade 310 Stainless Steels :

GradeTensile Strength (MPa) minYield StrengElongation (% in 50mm) minh 0.2% Proof (MPa) minElongation (% in 50mm) minHardness (Rockwell B (HR B) maxHardness (Brinell (HB) max
3105152054095217
310S5152054095217

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Physical Properties :

GradeDensity (kg/m3)Elastic Modulus (GPa)Mean Coefficient of Thermal Expansion (mm/m/°C)Thermal Conductivity (W/m.K)Specific Heat 0-100°C (J/kg.K)Electrical Resistivity (nW.m)
0-100°C0-315°C0-538°Cat 100°Cat 500°C
310/S775020015.916.217.014.218.7500720

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Comparison of Approximate grade for 310 stainless steels :

GradeUNS NoOld BritishEuronormSwedish SSJapanese JIS
BSEnNoName
310S31000310S241.4840X15CrNi25-20SUH 310
310SS31008310S161.4845X8CrNi25-212361SUS 310S

These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.

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Possible Alternative Grades Possible alternative grades to grade 310 stainless steels are given :

GradeWhy it might be chosen instead of 310
3CR12Heat resistance is needed, but only to about 600°C.
304HHeat resistance is needed, but only to about 800°C.
321Heat resistance is needed, but only to about 900°C. Subsequent aqueous corrosion resistance also required.
253MA (2111HTR)A slightly higher temperature resistance is needed than can be provided by 310. Better resistance to reducing sulphide atmosphere needed. Higher immunity from sigma phase embrittlement is required.

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Corrosion Resistance :

The high chromium content – intended to increase high-temperature properties – also gives these grades good aqueous corrosion resistance. The PRE is approximately 25, and seawater resistance about 22°C, similar to that of Grade 316. Excellent resistance at normal temperatures, and when in high-temperature service exhibits good resistance to oxidising and carburising atmospheres. Resists fuming nitric acid at room temperature and fused nitrates up to 425°C.

Subject to stress corrosion cracking but more resistant than Grades 304 or 316.

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Heat Resistance :

Good resistance to oxidation in intermittent service in air at temperatures up to 1040°C and 1150°C in continuous service. Good resistance to thermal fatigue and cyclic heating. Widely used where sulphur dioxide gas is encountered at elevated temperatures. Continuous use in 425-860°C range not recommended due to carbide precipitation, if subsequent aqueous corrosion resistance is needed, but often performs well in temperatures fluctuating above and below this range.

Grade 310 is generally used at temperatures starting from about 800 or 900°C – above the temperatures at which 304H and 321 are effective.

Heat TreatmentSolution Treatment (Annealing) – heat to 1040-1150°C and cool rapidly for maximum corrosion resistance. This treatment is also recommended to restore ductility after each 1000 hours of service above 650°C, due to long term precipitation of brittle sigma phase.

These grades cannot be hardened by thermal treatment.

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Applications include :

  • Furnace parts
  • Oil burner parts
  • Carburising boxes
  • Heat Treatment baskets and jigs
  • Heat Exchangers
  • Welding filler wire and electrodes

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