Over 60 Years of Stainless Expertise – Materials that Perform
For more than six decades, WITTE TUBE has specialized in the supply of high-grade stainless steel material and high alloy steel components. Our guiding principle, “The Substance of Steel”, stands for performance, precision, and quality—delivering robust, corrosion-resistant materials engineered for the most demanding industrial applications.
Whether you are active in offshore technology, plant construction, chemical processing, or marine environments, we offer stainless steel solutions that meet and exceed your expectations.
Comprehensive Stock – Alloy and Stainless Piping, Ready to Ship
Our extensive stock range includes a wide selection of piping systems made of standard stainless steel as well as high-alloy steels like:
● 254 SMO stainless steel
● 904 L stainless steel
● Duplex stainless steel
● Super duplex stainless steel
At our logistics center, we maintain 8,000 m² of covered warehouse space and 4,000 m² of open storage, enabling quick delivery of seamless and welded pipes and fittings in accordance with DIN/EN and ASME standards.
Stainless Steel Grades – Standard and Special Materials
Special Stainless Steel
Our range of special stainless steel is engineered for the highest corrosion resistance and mechanical strength—ideal for critical process environments:
● 1.4547 | 254 SMO | S31254 | F44
High-alloy austenitic stainless steel developed for use in seawater and chloride-rich environments, including the shipping and food industries. Resistant to pitting and crevice corrosion due to increased molybdenum and nitrogen content.
● 1.4539 | 904L | N08904
Highly corrosion-resistant austenitic steel designed to withstand aggressive organic and inorganic acids. Offers superior resistance to pitting and stress corrosion cracking.
● 1.4462 | Duplex | S31803 | S32205 | F51
Widely used duplex steel with superior strength and corrosion resistance. Ideal for systems exposed to chloride stress corrosion. Economically advantageous due to its lower nickel content.
● 1.4410 | S32750 | F53 – Super-Duplex
Austenitic-ferritic super-duplex steel with outstanding resistance and mechanical strength. Suitable for applications where standard duplex grades are no longer sufficient.
Standard Stainless Steel
Our standard stainless steel grades cover a broad range of applications in general industry, apparatus engineering, and chemical processing:
● 1.4404 | 1.4401 | 316L | 316
Molybdenum-alloyed 316 L stainless steel with low carbon content, ideal for applications requiring high corrosion resistance and excellent weldability.
● 1.4571 | 316Ti
Titanium-stabilized austenitic steel 1.4571 with excellent resistance to acids and intergranular corrosion. Performs well even at elevated temperatures.
● 1.4541 | 1.4878 | 321 | 321H
Chromium-nickel 321 stainless steel stabilized with titanium, offering excellent oxidation resistance up to 900°C in air and 650°C in CO₂. Perfect for high-temperature applications.
These stainless steel grades meet the demands of sectors where process reliability, corrosion resistance, and regulatory compliance are paramount.
What Is SS Steel? Understanding the Composition
SS steel, or stainless steel, is a corrosion-resistant steel alloy defined by its stainless steel composition, primarily chromium, but often including nickel, molybdenum, and nitrogen. The exact composition of steel and stainless steel determines its performance in terms of corrosion resistance, strength, and weldability.
Our product portfolio supports all major ss steel grades—from standard austenitic to complex duplex and super-austenitic variants—tailored to your technical and environmental specifications.
Your Direct Benefits with WITTE TUBE
● Rapid Delivery: Thanks to 12,000 m² of strategically stocked inventory
● Full Portfolio: Broad spectrum of standard and high alloy stainless steel grades
● Technical Expertise: Detailed consultation on material selection, processing, and specification
● Norm Compliance: DIN/EN and ASME quality standards for safe, global deployment
Engineered for Performance. Supplied for Industry.
WITTE TUBE is your partner for alloy and stainless piping, components, and system solutions. From SS steel grades to niche super-austenitic materials, we provide traceable, compliant, and ready-to-integrate steel solutions—for industries that demand precision.
Scope of delivery
Haven’t found the right steel?
We offer you the complete range for stainless steel piping systems, in different materials and for the highest demands.
