Stainless Steel 321H Pipes

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Stainless Steel 321H Pipes Manufacturer, Supplier and Exporter in Cape Town, South Africa

Bosega Pipes and Tubes stands out as a top-notch manufacturer and supplier of Stainless Steel 321H Pipes in Cape Town, South Africa. They specialize in delivering high-quality piping solutions that excel in high-temperature performance and resist corrosion. Stainless Steel 321H is an austenitic stainless steel that’s stabilized with titanium, featuring a higher carbon content than 321, which gives it remarkable resistance to intergranular corrosion and improved creep strength at elevated temperatures. At Bosega, the pipes are crafted with precision, boasting smooth finishes and consistent wall thickness, all while adhering to international standards to ensure dependable performance in power generation, chemical processing, and various industrial applications.

Stainless Steel 321H Seamless Pipe
Stainless Steel 321H Welded Pipe
Stainless Steel 321H EFW Pipe

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Table of Contents

These Stainless Steel 321H Pipes are primarily made up of iron, chromium (17–19%), nickel (9–13%), titanium, and a higher carbon content (0.04–0.10%) compared to 321, along with trace amounts of manganese and silicon. The titanium stabilization plays a crucial role in preventing carbide precipitation during welding or high-temperature service, which in turn guarantees excellent resistance to intergranular corrosion. On the mechanical side, these pipes provide high tensile and yield strength, outstanding creep resistance, and remarkable toughness, ensuring they maintain their structural integrity even when exposed to high temperatures and harsh corrosive environments for extended periods.

Stainless Steel 321H Pipes Specification

Pipe Standard ASTM A312 ASME SA312 / ASTM A358 ASME SA358
Pipe Dimension ANSI/ASME B36.19M, ANSI/ASME B36.10M
Pipe Sizes 1 / 2″ NB – 24″ NB
Pipe Outside Diameter 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock
Steel Pipe Manufacturing Process Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded
Stainless Steel Pipe Shapes Hydraulic, Round, Rectangle, Square, Hex, Honed
Stainless Steel Pipe Schedule SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Pipe Ends Half Hard, Soft, Hard, Quarter Hard, Spring Hard
Delivery Condition Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Outside Finish 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
Value Added Services Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing

Stainless Steel 321H Pipes Chemical Composition

Grade C Mn Si P S Cr N Ni Ti
SS 321H 0.04 – 0.10 2.0 max 1.0 max 0.045 max 0.030 max 17.00 – 19.00 0.10 max 9.00 – 12.00 4(C+N) – 0.70 max

SS 321H Pipes Mechanical Properties

DensityMelting PointTensile StrengthYield Strength (0.2%Offset)Elongation
8.0 g/cm31457 °C (2650 °F)Psi – 75000 , MPa – 515Psi – 30000 , MPa – 20535 %

If You Are Looking To Buy High Quality

We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.

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Why Choose Stainless Steel 321H Pipes from Bosega Pipes and Tubes?

Choosing Stainless Steel 321H Pipes from Bosega Pipes and Tubes offers corrosion resistance and excellent durability, ideal for harsh environments. Their pipes are precisely engineered for durability and reliability, conforming to stringent industry standards. Bosega offers solutions tailored to suit specific business requirements, backed by exceptional customer service. Furthermore, their commitment to quality ensures longevity and performance, making them a reliable choice for a variety of applications. Trust Bosega’s expertise in providing quality stainless steel for your needs.

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Largest Stainless Steel 321H Pipes Supplier in Cape Town, South Africa

Bosega Pipes and Tubes, one of the largest suppliers of Stainless Steel 321H Pipes in Cape Town, South Africa, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.

Stainless Steel 321H Pipes Sizes in MM

Designation of Diameter O/D Nominal Wall Thickness
DIA SCH.5S SCH.5 SCH 10S SCH.10 SCH.20S SCH.30 SCH.40S SCH.40 SCH 60
(A) (B) Meter MM Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr
6 1/8 10.3 1 0.23 1.2 0.27 1.5 0.33 1.73 0.37
8 1/4 13.7 1.2 0.37 1.65 0.49 2 0.58 2.24 0.64
10 3/8 17.2 1.2 0.47 1.65 0.63 2 0.74 2.31 0.87
15 1/2 21.3 1.65 0.01 1.65 0.81 2.11 1.02 2.11 1.02 2.5 1.15 2.77 1.29
20 3/4 26.7 1.65 1.03 1.65 1.03 2.11 1.3 2.11 1.3 2.5 1.49 2.87 1.71
25 1 33.4 1.65 1.31 1.65 1.31 2.77 2.13 2.77 2.13 3 2.24 3.38 2.54
32 11/4 24.2 1.65 1.67 1.65 1.67 2.77 2.73 2.77 2.73 3 2.9 3.56 3.44
40 11/2 48.3 1.65 1.93 1.65 1.93 2.77 3.16 2.77 3.16 3 3.35 3.68 4.11
50 2 60.3 1.65 1.93 1.65 2.42 2.77 3.99 2.77 3.99 3.5 4.9 3.91 5.52
65 21/2 73 2.11 3.75 2.11 3.75 3.05 5.34 3.05 5.34 3.5 6 5.16 8.77
80 3 88.9 2.11 4.59 2.11 4.59 3.05 6.56 3.05 6.56 4 8.37 5.49 11.47
90 31/2 101.6 2.11 5.25 2.11 5.25 3.05 7.53 3.05 7.53 4 9.62 5.74 13.78
100 4 114.3 2.11 5.93 2.11 5.93 3.05 8.5 3.05 8.5 4.5 12.18 6.02 6.32
125 5 141.3 2.77 9.61 2.77 9.61 3.4 11.74 3.43 11.74 5 16.8 6.55 2210
150 6 168.3 2.77 11.47 2.77 11.47 3.4 14.04 3.43 14.04 5.5 22.08 7.11 28.69
200 8 219.1 2.77 15 2.77 15 3.76 20.77 3.76 20.27 6.35 33.82 7.04 37.38 8.18 43.2 10.81 53.9
250 10 273.1 3.4 22.95 3.4 22.95 4.19 28.2 4.19 28.2 6.35 42.41 7.8 51.81 9.27 61.22 12.2 82.8
300 12 323.9 3.96 31.72 4.19 33.6 4.57 36.54 4.57 36.54 6.35 50.48 8.38 66.2 9.53 75.01 10.31 80.94 14.27 110.62
350 14 355.6 3.96 34.86 4.78 41.99 6.35 55.53 7.92 68.95 9.53 82.58 9.53 82.58 11.13 96 15.06 128.42
400 16 406.4 4.19 42.2 4.78 48.07 6.35 63.61 7.92 79.03 9.53 94.7 9.53 94.7 12.7 125.2 16.66 162.59
450 18 457.2 4.19 47.46 4.78 54.15 6.35 71.69 7.92 89.1 11.13 124.32 9.53 106.83 14.27 158.27 19.05 209
500 2C 508 4.78 60.23 5.54 69.7 6.35 79.76 9.53 118.93 12.7 157.51 9.53 118.9 15.06 185.89 2062 251.65
550 22 558.8 4.78 65.95 5.54 76.75 6.35 87.84 9.53 131.07 12.7 173.66 9.53 131.07 15.88 216.04 22.23 298.55
600 24 609.6 5.54 83.8 6.35 95.92 6.35 95.92 9.53 143.2 14.27 212.72 9.53 143.2 17.45 258.74 24.59 360.21
650 26 660.4 7.92 129.4 12.7 205.97 9.53 155.32
700 28 711.2 7.92 139.47 12.7 222.13 15.88 276.48 9.53 167.44
750 3C 762 6.35 120.15 7.92 149.55 7.92 149.55 12.7 238.28 15.88 296.68 9.53 179.56
800 32 812.8 7.92 159.62 12.7 254.44 15.88 316.88 9.53 191.69 17.48 348.11
850 34 863.6 7.92 169.64 12.7 270.5 15.88 336.96 9.53 203.74 17.48 370.22
900 36 914.4 7.92 179.77 12.7 286.75 15.88 357.28 9.53 215.93 19.05 427.09

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Types of Stainless Steel 321H Pipes

Stainless Steel 321H Square Pipes
SS 321H Thick Wall Pipe
Stainless Steel 321H ERW Pipes
Stainless Steel 321H Round Pipes
SS 321H LSAW Pipes
Stainless Steel 321H Thin Wall Pipe

Are Custom Sizes Available for Stainless Steel 321H Pipes?

Yes, we offer custom sizes for Stainless Steel 321H Pipes to meet your specific requirements. Our team at Bosega Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@bosegapipes.co.za.

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You’ll find Stainless Steel 321H Pipes commonly used in boilers, heat exchangers, superheaters, chemical processing equipment, and furnace components where high-temperature strength and corrosion resistance are vital. They’re perfect for power plants, petrochemical industries, marine applications, and refinery systems. The blend of thermal stability, durability, and resistance to stress corrosion cracking ensures that these pipes deliver long-lasting performance and reliable operation in even the most demanding industrial settings.

Stainless Steel 321H Pipes Uses

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