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uccessful Development of Alloy28 Ni-Based Alloy in 125-KSI Grade
Technical Breakthrough: Alloy28-Based 125-KSI Seamless Tubing Enters Global Market
Alloy28 nickel-iron-chromium alloy exhibits exceptional resistance to both reductive and oxidative acids, alongside remarkable stress corrosion cracking (SCC) immunity13. These properties enable its deployment across critical sectors including:
- Chemical processing systems
- Pollution control equipment
- Oil/gas pipelines
- Nuclear fuel reprocessing
- Sulfuric acid production facilities35
The newly developed 125-KSI seamless tubing represents China’s inaugural production of this premium Ni-based alloy product6. Global manufacturing capacity remains scarce, positioning this innovation for significant market prospects46.
Production Breakthroughs:
- Calibrated cold-rolling deformation parameters
- Optimized wall reduction toleranceeccentricity control
- Implemented specialized cold-rolling techniques:24
- Overcame extreme rolling force challenges (exceeding 12,000 kN)
This milestone achievement delivers cost-effective alternatives replacing premium Ni-based alloys, strengthening leadership in corrosion-resistant applications while creating new profit vectors