Super Duplex Stainless Steel is a high-performance stainless steel known for its exceptional combination of mechanical strength, superior corrosion resistance, and excellent resistance to chloride-induced stress corrosion cracking. Featuring a balanced microstructure of approximately equal amounts of austenite and ferrite, Super Duplex Stainless Steel delivers significantly higher strength and enhanced corrosion performance compared to conventional austenitic and duplex stainless steels.
What is Super Duplex Stainless Steel?
Super Duplex Stainless Steel is an advanced stainless steel alloy containing high levels of Chromium, Nickel, Molybdenum, and Nitrogen. This carefully engineered composition provides outstanding resistance to pitting, crevice corrosion, erosion, and chloride stress corrosion cracking while maintaining exceptional mechanical strength and toughness. Super Duplex Stainless Steel is widely used in highly corrosive and demanding environments where conventional stainless steels may not provide sufficient performance or service life.
At Tamboli Castings Limited, we specialize in precision investment castings of Super Duplex Stainless Steel Alloys for demanding industrial applications. With decades of foundry expertise rooted in Bhavnagar, Gujarat, India, we supply castings that meet the tightest dimensional tolerances and international material standards — from ASTM to ASME, DIN, JS, ISO, SAE/AMS, and beyond. Our commitment to quality and compliance is backed by a comprehensive set of internationally recognized certifications, including ISO 9001:2015, IATF 16949:2016 (Automotive), AS 9100D (Aerospace), ISO 14001 (Environment), ISO 45001 (Health & Safety), PED & AD 2000 (Pressure Equipment), NORSOK M-650 (Oil & Gas) and ISAE 3410 GHG Verification By TÜV NORD Germany. Ensuring every casting we deliver meets the most stringent global standards across industries.
Precision Investment Castings in Super Duplex Stainless Steel Alloys
At Tamboli Castings Limited, we specialize in precision investment castings of Super Duplex Stainless Steel Alloys for demanding industrial applications. With decades of foundry expertise rooted in Bhavnagar, Gujarat, India, we supply castings that meet the tightest dimensional tolerances and international material standards.
- ASTM Standards
- ASME Compliant
- ISO Certified
- SAE/AMS Specs
- DIN
- JS
Industries & Applications
Super Duplex Stainless Steel investment castings are widely used in industries where corrosion resistance and mechanical strength are critical requirements.
Water Treatment & Desalination
Super Duplex Stainless Steel Alloys Grades
ASTM A890 Gr. 1B
(Duplex Steel)
ASTM A890 Gr. 3A
(Duplex Steel)
ASTM A890 Gr. 4A
(Duplex Steel)
ASTM A890 Gr. 5A
(Super Duplex Steel)
ASTM A890 Gr. 6A
(Super Duplex Steel)
ASTM A995 Gr. 1B
(Duplex Steel)
ASTM A995 Gr. 3A
(Duplex Steel)
ASTM A995 Gr. 4A
(Duplex Steel)
ASTM A995 Gr. 5A
(Super Duplex Steel)
ASTM A995 Gr. 6A
(Super Duplex Steel)