Hastelloy Flanges Manufacturer in Cape Town , South Africa

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If you’re looking for top-notch Hastelloy Flanges, look no further than Themba Nickel Alloys, a reputable manufacturer and supplier based in Cape Town, South Africa. They specialize in crafting high-quality flanges that excel in harsh, corrosive, and high-temperature settings. Known for their remarkable strength and durability, these flanges resist chemical attacks, ensuring they perform reliably even in the toughest industrial environments. Themba Nickel Alloys employs cutting-edge manufacturing techniques and rigorous quality control measures to guarantee precision and consistency, all while adhering to international standards. Their Hastelloy Flanges are a go-to choice in industries like chemical processing, power generation, and aerospace, making them a trusted provider of premium nickel-based alloy flange solutions.

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These flanges are primarily made up of nickel (about 60%), molybdenum (around 16%), and chromium (roughly 22%), along with small amounts of iron, tungsten, and cobalt. This unique alloy composition gives them exceptional resistance to oxidation, pitting, and crevice corrosion, even in aggressive chemical and high-temperature conditions. On the mechanical side, they boast a tensile strength of about 790 MPa, a yield strength of 355 MPa, and impressive ductility. Their outstanding toughness, resistance to creep, and metallurgical stability ensure they perform dependably in extreme operating conditions.

Hastelloy Flanges Specifications

Specifications Hastelloy Flanges
ASME B16.5 Hastelloy C276 Flange size range 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
Hastelloy Flanges Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flanges.
Hastelloy C276 Flange Standard ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Hastelloy C276 Flange Standard DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
Hastelloy C276 Flange Standard JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
Hastelloy C276 Flange Standard UNI 6Bar 10Bar 16Bar 25Bar 40Bar
Hastelloy C276 Flange Standard EN 6Bar 10Bar 16Bar 25Bar 40Bar
Main Types Forged / Threaded / Screwed / Plate
Flange supporting material Gasket, Ring Joint, Flange Bolts
Hastelloy C276 Pipe Flanges Test Certificates EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
Most common types of Hastelloy C276 Flanges
  • Weld Neck Ring Flange (WNRF), Hastelloy C276
  • Slip-On Ring Flange (SORF), Hastelloy C276
  • Blind Ring Flange (BLRF), Hastelloy C276
  • Socket Weld Ring Flange (SWRF), Hastelloy C276
  • Threaded Ring Flange, Hastelloy C276
  • Lap Joint Ring Flange (LJRF), Hastelloy C276
  • Ring Type Joint Flange (RTJF), Hastelloy C276
Production technique
  • Forged, Heat treated and machined
Connect Type/ Flange Face Type Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove
Special design As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations Hastelloy C276 Threaded Flange, Socketweld Flange, Slip-On Flange, Blind Flange, Weld Neck Flange

Hastelloy Flanges Chemical Composition

GradeHastelloy C22
C0.010 max
Mn0.50 max
Si0.08 max
S0.02 max
Co2.50 max
Ni50.015 min
Cr20.00 – 22.50
Fe2.00 – 6.00
Mo12.50 – 14.50
P0.02 max

Hastelloy Flanges Mechanical Properties

Density 8.89 g/cm3
Melting Point 1370 °C (2500 °F)
Tensile Strength Psi – 1,15,000 , MPa – 790
Yield Strength (0.2%Offset) Psi – 52000 , MPa – 355
Elongation 40 %

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Largest Manufacturer and Supplier of Hastelloy Flanges in Cape Town , South Africa

At Themban Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Hastelloy Flanges in Cape Town , South Africa, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Cape Town, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.

Types of Hastelloy Flanges

Hastelloy Slip On Flanges
Hastelloy Threaded Flanges
Hastelloy Weld Neck Flanges
Hastelloy Socket Weld Flange
Hastelloy Blind Flanges
Hastelloy Lap Joint Flange

Contact us to get a quick quote for your requirement.

We offer These Products as per DIN, ISO, JIS or ANSI Standard.

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Hastelloy Flanges Uses

Hastelloy Flanges are widely utilized in industries that demand high corrosion resistance and mechanical strength. They’re commonly found in chemical and petrochemical processing plants, where they’re used in piping systems, reactors, and heat exchangers that face acidic or oxidizing environments. In the power generation sector, they play a crucial role in boilers, turbine systems, and high-temperature piping networks. Additionally, these flanges are used in marine applications, aerospace systems, and pollution control equipment. With their combination of durability, corrosion resistance, and high-temperature stability, Hastelloy Flanges are perfect for critical industrial and engineering applications.

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Food Processing Industry

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Oil and Gas Industry

Petro Chemical Industry

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