347 Stainless Steel Medium Thick Plate
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347 Stainless Steel Medium Thick Plate

347 Stainless Steel Medium Thick Plate

347 Stainless steel medium thick plate offers great strength and toughness that guarantees its longevity and ability to withstand substantial loads and impacts. This renders it highly suitable for a variety of applications, especially in environments prone to exposure to corrosive substances. From architecture to heavy industrial machinery and from food processing to medical applications, it is indispensable. Wanting 347 stainless steel medium-thickness plates to upgrade your steel projects, welcome to contact us for more details!

4 - 25 mm

What Is 347 Stainless Steel Medium Thick Plate?

As its name suggests, 347 stainless steel medium thick plate is stainless steel plate of 4-25 mm in 347 grade. This stainless steel grade, renowned for its resistance to intergranular corrosion, proves ideal for deployment in high-temperature settings. Moreover, it exhibits outstanding heat resistance, maintaining its strength and integrity even when subjected to elevated temperatures.

347 Chemical Composition

C Si Mn P S Ni Cr Nb
0.08 1.00 2.00 0.035 0.030 9~13 17.00~19.00 5*C%

347 Stainless Steel Medium Thick Plate Specification Chart

Grade 347
Thickness 4-25 mm
Width 600 – 1500 mm
Length 800 – 2000 mm
Techniques hot rolled and cold rolled
Surface 2B, 2D, BA, NO. 1, NO. 4, NO. 8, 8K, mirror, embossed, hair line, sandblast, polished, brushed, mill, etching, etc
Customization Acceptable
Package standard export seaworthy package

347 Stainless Steel Medium Thick Plate Fabrication

The process of manufacturing and fabricating 347 stainless steel medium thick plates entails a series of crucial steps. They are usually manufactured by rolling process, including hot rolling and cold rolling.

Hot Rolling: alloy melting — refining — casting — hot rolling — heat treatment — forming

Cold Rolling: hot rolled 347 stainless steel medium thick plate — cold rolling — sizing — straightening — examining

347 Stainless Steel-Medium Thick Plate Fabrication

347 Stainless Steel Medium Thick Plate Characteristics

The plate possesses exceptional properties that make it ideal for a variety of heavy applications. They include:

1. Excellent Resistance to Intercrystalline Corrosion

347 stainless steel is stabilized by the addition of columbium and tantalum, which provides excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 1500°F (427 to 816°C).

2. Mechanical Properties

Property 347
Yield Strength, min. (ksi) 30
Tensile Strength, min. (ksi) 75
Elongation, min. (%) 40
Hardness, max. (Rb) 92

3. Physical Properties

Property 347
Density, lb/in3 0.288
Modulus of Elasticity, psi 28.0 x 106
Coefficient of Thermal Expansion, 68-212˚F, /˚F 9.3 x 10-6
Thermal Conductivity, Btu/ft hr ˚F 9.2
Specific Heat, Btu/lb ˚F 0.12
Electrical Resistivity, Microohm-in 28.4

4. Resistance to Creeping and Stress Rupturing

347 has higher creep and stress rupture properties than 304/304L, making it suitable for long-term work life in high temperatures.

5. Good Low-temperature Toughness

It also possesses good low-temperature toughness and is non-magnetic in the annealed condition.

6. Good Weldability

It has good machining performance and welding performance and can be machined easily.


Stainless Steel Medium Thick Plate Uses

347 stainless steel medium thick plate finds extensive applications in various industries due to its exceptional properties. Some of its key applications are:

1. Chemical Processing

It possesses the ability to endure the harsh chemical environments and elevated temperatures that are often encountered in this industry. As a result, it is an ideal choice for reactors, heat exchangers, and storage tanks, ensuring the longevity and reliability of such equipment.

2. High-Temperature Applications

347 stainless steel medium-thick plate exhibits remarkable heat resistance, rendering it suitable for many high-temperature applications. It is commonly used in power generation, aerospace, and furnace manufacturing. Its exceptional capability to retain strength and resist oxidation at elevated temperatures makes it a reliable and sought-after material for components like turbine blades, exhaust systems, and heat exchangers, ensuring the efficiency and durability of these crucial elements.

3. Oil and Gas Exploration

The oil and gas industry demands materials that can withstand corrosive environments, high pressures, and extreme temperatures. In this regard, 347 stainless steel medium thick plate emerges as a dependable choice, meeting the stringent requirements of this sector. It is extensively employed in offshore platforms, pipelines, valves, and other equipment where resistance to sulfide stress cracking and corrosion is of paramount importance.

4. Public Uses

It can also be used in construction engineering, machinery manufacturing, container manufacturing, shipbuilding, bridgebuilding, furnace shells, welding components, etc.

Stainless Steel Medium Thick Plate Uses

Final Words

In summary, 347 stainless steel medium thick plate is a stabilized alloy with excellent resistance to intergranular corrosion and is suitable for various industrial applications, especially in high-temperature environments. Gnee Steel offers 347 stainless steel medium-thickness plates available in a wide range of sizes, with thicknesses ranging from 0.188 to 4 inches. If you have the need, welcome to contact us for a free quote.

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