Midland Alloys Inc. is a trusted supplier and manufacturer of Stainless Steel 310 and 310S Welded Pipes, offering high-quality piping systems, that can endure even the most severe heat conditions. Our production plant specialises in high-precision longitudinal welding to ensure that each stainless steel 310 welded pipe has structural integrity comparable to seamless alternatives. We offer a wide range of ss 310s welded pipe options for heavy industrial, furnace, and chemical processing applications where heat resistance is essential. As a leading supplier of stainless steel 310 welded pipes, we strictly adhere to the ASTM A312, and ASME SA312 standards. Our inventory consists of various wall thicknesses and surface treatments to accommodate unique project layouts. As a global supplier we ensure that our products meet complete traceability and ISO 9001 certification.

Stainless Steel 310/310S Pipes

What is SS 310 / 310S Welded Pipe?

SS 310 and 310S welded pipes are produced by forming stainless steel plates or coils into a cylindrical shape and welding the longitudinal seam to create a continuous pipe body. In simple terms, flat stainless steel is shaped, aligned, and joined using controlled welding methods that ensure uniform strength along the seam. Modern welding techniques help maintain joint reliability, dimensional accuracy, and pressure integrity across the pipe length. An SS 310 welded pipe offers high-temperature strength and strong resistance to oxidation, which supports use in heat-intensive environments. The reduced carbon content of SS 310S welded pipe lowers carbide precipitation during welding, increasing joint quality, and long-term performance at high temperatures. Both grades perform consistently in corrosive and heat-resistant environments, which makes stainless steel 310 welded pipe solutions ideal for demanding industrial applications.

specification-stainless-steel-310-310s-welded-pipes

Benefits of Welded 310 & 310S SS Piping

Using Welded SS 310 and 310S pipes provides a strategic advantage for systems operating under constant thermal stress. These pipes offer a unique combination of high-temperature ductility and chemical stability.

  • Exceptional oxidation resistance at sustained elevated temperatures due to high chromium and nickel content.
  • High-temperature strength with stable mechanical properties during continuous thermal exposure.
  • Strong resistance to scaling and surface degradation under oxidising atmospheres
  • Reliable performance under repeated heating and cooling cycles without distortion.
  • Good fabrication and welding behaviour, especially with SS 310S welded pipe benefits driven by lower carbon content.
  • Consistent structural integrity along welded seams using modern welding processes.
  • Long service life in high-heat industrial environments such as furnaces and thermal units.
  • Cost-efficient solution for large-diameter and structural systems using SS 310 welded pipe advantages as a high-temperature stainless steel pipe.

Specification of Stainless 310 & 310S Welded Pipes

The following specifications outline dimensional ranges, wall thickness limits, and applicable manufacturing standards used for SS 310 and 310S welded stainless steel pipes in industrial service.

Finish
Sizes in Stock

Seamless Pipe OD : 1/8 -12" NPS

ASTM Standard
Standard

ASTM A312 ASME SA312 / ASTM A358 ASME SA358

Process
Manufacturing Process

Seamless

Form
Form

Round, Square, Rectangular, Hydraulic Etc

Length
Length

Single Random, Double Random & Cut Length.

End Icon
End

Plain End, Beveled End, Treaded

Schedule
Schedule

SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, SCH 80S, SCH60, SCH80, SCH120, SCH140, SCH160, SCH XXS, SCH XS

Finish
Surface Finish

No. 2B - Mill finish/ Matte finish, No.8 - Mirror finish, No. 4 - Brushed finish, Bright, Annealing, Polished, Mirror

Types of SS 310 & 310S Welded Pipes

SS 310 and 310S welded pipes are commonly selected for corrosion-critical and heat-intensive systems where material stability directly affects process safety and uptime. Marine-linked facilities, offshore units, and chemical processing plants rely on these grades for predictable performance under thermal stress.

Pipe Forms

  • High-Temperature Strength
    High-Temperature Strength

    Retains impressive mechanical properties and load-bearing capacity even when the metal is glowing hot. It is perfect for continuous high-heat industrial service.

  • Oxidation Resistance
    Oxidation Resistance

    Prevents surface scaling and metal degradation in air up to 1100°C. High chromium and nickel content drive this performance.

  • Thermal Cycling Stability
    Thermal Cycling Stability

    Handles the expansion and contraction of metal during frequent temperature shifts. It resists distortion and surface cracking.

  • Corrosion Resistance
    Corrosion Resistance

    Stands up to mildly carburising atmospheres and various industrial chemicals. It is a solid choice for harsh processing environments.

  • Weldability Advantage of 310S
    Weldability Advantage of 310S

    Features a lower carbon limit to stop carbon from migrating to the grain boundaries. This improves the overall weld integrity.

  • Structural Strength in Welded Form
    Structural Strength in Welded Form

    Modern automated welding techniques produce seams that match the base metal’s strength. It delivers consistent mechanical performance.

  • Pressure Handling Capability
    Pressure Handling Capability

    Suitable for medium-pressure systems where heat would cause other steels to fail. It is a staple in process piping.

  • Extended Service Life
    Extended Service Life

    Offers incredible durability in kilns and steam boilers. Reduced maintenance leads to much longer replacement cycles.

Contact Midland Alloys Inc. for Your Stainless Steel 310 welded Pipes Needs

Contact us today to discuss how Stainless Steel 310/310S Welded Pipes can benefit your application. Whether you need guidance in selecting the right pipes or have specific requirements, our team of experts is here to help you find the optimal solution.

Technical Details & Delivery Condition

Chemical composition details define chromium, nickel, and carbon limits that control oxidation resistance, weld stability, and high-temperature strength in welded 310 and 310S stainless steel pipes.
Grade C Mn Si P S Cr Mo Ni N
SS 310 0.015 max 2.0 max 0.15 max 0.020 max 0.015 max 24 – 26 0.10 max 19 – 21 54.7 min
SS 310S 0.08 max 2.0 max 1.00 max 0.045 max 0.030 max 24 – 26 0.75 max 19 – 21 53.095 min
Mechanical property values describe tensile strength, yield behaviour, and elongation characteristics that govern performance under heat, pressure, and structural loading.
Grade C Mn Si P S Cr Mo Ni N
SS 310 0.20 max 2 max 1 max 0.045 max 0.030 max 18.0 – 23 8.0 -14
SS 310S <=0.080 max <=2.00 max <=0.75 max <=0.040 max <=0.015 max 22.00-24.00 max 12.00-14.00

Stainless Steel Seamless Pipe Grades We Offer

Round Bar

Round Bar

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Analytic

Analytic

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Cut to Length

Cut to Length

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Centering

Centering

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Heating

Heating

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Perforation

Perforation

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Inspection of Size

Inspection of Size

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Pickling

Pickling

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Inspection of Surface

Inspection of Surface

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Lubricating

Lubricating

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Cold Drawing (Cold Rolling)

Cold Drawing (Cold Rolling)

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Degreasing

Degreasing

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Annealing

Annealing

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Straightening

Straightening

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Cut

Cut

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Pickling / Passivating

Pickling / Passivating

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Inspection

Inspection

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Analytic

Analytic

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Marking

Marking

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Packing & Shipping

Packing & Shipping

Industrial Applications for SS 310 & 310S Welded Pipes

Welded SS 310 and 310S pipes are used in various industries that operate in extreme heat, high-pressure and oxidizing environments. Oil and gas facilities use them in highly demanding process pipes, and exhaust systems. The oxidation resistance of reactors, transfer lines, and heat units is critical in petrochemical and chemical processing plants. These pipes are used in power generation systems for boilers, heat exchangers, and flue gas management. Corrosion resistance and clean surface finishes are beneficial to food processing and water treatment. Welded 310/310S pipes are used in the automotive and construction industries to provide structural support and high-temperature components. Strong weldability, particularly with 310S, facilitates fabrication, while welded construction increases cost efficiency for large-diameter systems.

Why Choose Midland Alloy's SS 310 And 310S Welded Pipes

SS 310 and 310S welded pipes are used where high-temperature strength, oxidation resistance, and material stability must be consistent across long operating cycles. Their chromium-nickel composition withstands prolonged exposure to high temperatures while resisting surface scaling and structural degradation. The lower carbon composition of 310S increases weld integrity and makes it less prone to thermal cracking during fabrication, and service. These qualities lead to longer service life in furnaces, heat exchangers, and process piping. As an ISO-certified supplier of export-quality materials, we maintain stringent control over chemical composition, welding, and inspection. We, as a supplier of stainless steel 310 welded pipes is focused on dimensional precision, documentation traceability and consistent performance across worldwide project requirements.

FAQs

SS 310S suits applications involving extensive welding or sustained high-temperature exposure, as its lower carbon content improves weld stability and reduces carbide precipitation.

Yes. Both grades perform well in furnace components, radiant tubes, and heat-treatment equipment due to strong oxidation resistance and high-temperature strength.

SS 310 welded pipes resist deformation and scaling during repeated heating and cooling, making them suitable for cyclic thermal service.

Yes. The alloy chemistry supports resistance to surface scaling and maintains dimensional stability during prolonged high-temperature operation.

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