Heat resistant stainless steel components for the toughest demands
WITTE HiTEMP’s stainless steel products offer reliable solutions for high-temperature applications. The range focuses on ready-to-install components such as pipes, bends, T-pieces, reducers, flanges, flanged fittings and caps, which are specifically designed for use at high temperatures.
Unlike traditional stainless steel products, the WITTE HiTEMP range is based exclusively on highly heat-resistant materials that have been specifically selected for thermally demanding applications.
Stainless steel fittings for high-temperature systems
WITTE HiTEMP offers a fully coordinated portfolio of stainless steel pipe fittings:
● Stainless steel pipes: the basis for temperature-loaded piping
● Stainless steel elbows: for changes of direction under constant thermal load
● Stainless steel tees: for distributing media flows
● Stainless steel reducers: for transitions between pipe diameters
● Stainless steel flanges: for safe, detachable connections
● Stainless steel collars : for special connection types
● Stainless steel caps: for closing off pipe ends
Every component is matched to the others so that all stainless steel fittings integrate perfectly into a single system.
The difference between heat resistant stainless steel and standard solutions
The key difference lies in the deliberate selection of materials. While standard products are often designed for moderate temperatures, WITTE HiTEMP focuses exclusively on heat resistant stainless steel developed for high thermal loads.
High-temperature grades we use:
● 1.4841 | AISI 314
● 1.4845 | AISI 310S/H
● 1.4878 | AISI 321H
● 1.4835 | 253 MA
● 1.4876 | Alloy 800
● 1.4828 | AISI 309
These grades enable use exactly where classic materials reach their limits. Our in-house turning shop allows precise machining and adaptation of every component, so we can supply both standard and custom stainless steel butt weld fittings.
Materials available from stock
● 1.4841 | AISI 314
● 1.4845 | AISI 310S/H
● 1.4878 | AISI 321H
● 1.4835 | 253 MA
Further information on the individual materials can be found in the section: Stainless Steel Materials.
FAQ : Frequently asked questions
Up to what temperature is stainless steel heat resistant?
It depends on the grade. Special high-temperature grades allow service at very high temperatures, well above conventional stainless steels.
What is the melting point of stainless steel?
Depending on the alloy, the melting point lies in a range of roughly 800 °C to 1.100 °C.
What does heat resistant stainless steel mean for these products?
Heat resistant stainless steel means the materials used are specifically designed for high temperatures, making them suitable for demanding piping and plant components.
How do these articles differ from standard stainless steel articles?
Standard stainless steel is usually designed for lower temperatures. WITTE HiTEMP articles, by contrast, are made exclusively from specially selected high-temperature grades.
Are the stainless steel articles available at short notice?
All stainless steel grades in our stock programme are in inventory and therefore available at short notice. For non-stock parts, our turning shop manufactures precise flanges, fittings and additional components on demand.
Delivery program
Standard. Special. And much more.
Beyond our comprehensive inventory, our delivery program offers a wide variety of specialties for the most diverse application areas.
Delivery program
Machine shop
We also process and manufacture.
Our machining center reliably manufactures your individual components – also according to drawings. With 713 m² of space and currently the shortest delivery times in Germany.
Machine shop
