Introduction
Stainless steel grade 310H has carbon content and is a preferred choice for high temperature applications. This steel has good resistance to oxidation at temperatures of up to 1040°C (1904°F) in intermittent service and 1150°C (2102°F) in continuous service. It is widely used in environments where sulfur dioxide gas is present at high temperatures; however it is recommended that this steel should not be continuously used at 425-860°C (797-1580°F) range due to carbide precipitation.
310H stainless steel pipe Usage
310H are widely used in aerospace engineering,oil refining equipment manufacturing, chemical processing equipment manufacturing, petrochemical industry, power generation plants, food processing equipment manufacturing, pharmaceutical industry, and medical instruments manufacturing.
Chemical Composition Of 310H
Chemical properties make stainless steel 310H a valuable material for many industrial applications. Its resistance to corrosion, elevated temperatures, and strength are among its most appealing features. This type of steel also has a low thermal expansion, making it ideal for use in pipes and tubing. Moreover, its excellent oxidation resistance helps the steel retain surface properties under high-temperature operations such as welding and heat treatment. Manufacturers of machinery components often select 310H stainless steel because it offers a combination of toughness, formability and longevity—it’s able to resist damage caused by chemical exposure over time. In a nutshell, chemical properties make this type of stainless steel well-suited for any job that requires extreme durability in extreme conditions.
| Grade | Fe | Cr | Ni | Mn | Si | P | C | S |
| 310H | 49.075-45.865 | 24-26 | 19-22 | 2 | 0.75 | 0.045 | 0.040-0.10 | 0.03 |
Mechanical Composition
| Grade | Tensile | Yield Strength Mpa, (Min) | Elongation (% in 50mm) min | Hardness |
| Rockwell B (HR B)max | Brinell (HB)max |
| 310H | 515 | 205 | 40 |
| 95 | 217 |
Physical Properties
310H has a number of physical properties that make it an ideal choice for many applications. It is strong yet ductile enough to be machined easily into practically any shape desired. Its low coefficient of thermal expansion also makes it suitable for welding applications where the material will be exposed to high temperatures on a regular basis. Additionally, it is highly resistant to both corrosion and scaling despite being exposed to even extreme temperatures over long periods of time.
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (µm/m/°C) | Thermal Conductivity | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (nΩ.m) |
| (W/m.K) |
0-1000C
| 0-3150C | 0-5380C | at 1000C | at 5000C |
| 310H | 7750 | 200 | 15.9 | 16.2 | 17 | 14.2 | 18.7 | 500 | 720 |
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ASME SA213 310H/UNS 31009 SS Seamless Welded Pipe For Machinery Components Images
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