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HD-1 High-silicon Stainless Steel

Categories: Material series

The HD-1 high-silicon stainless steel is a novel corrosion-resistant material jointly developed by New Hongda and the Institute of Metal Research, Chinese Academy of Sciences. It demonstrates excellent long-term performance in high-temperature concentrated sulfuric acid applications.

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Product Description

Description:

Annual Corrosion Rate of HD-1 High Silicon Stainless Steel
Test Temperature (°C)	Test Duration (h)	Corrosion Rate (mm·a⁻¹)
Test Temperature (°C)	Test Duration (h)	93% H₂SO₄	98% H₂SO₄
60	168	0.00187	0.00037
80	240	0.0051	0.00085
100	216	0.0088	0.0052
120	96	0.0109	0.0081
150	144	0.0301	0.0091
200	144	0.6441	0.076

Applications:

In addition to manufacturing tube-trough acid distributors, HD-1 high-silicon stainless steel is widely used in the drying and absorption sections of sulfuric acid plants for producing: drying towers, absorption towers, filters, packing support grid plates, circulation tanks, welded pipes, sleeve pipes etc.

Product Specifications

Specifications:

The following product specifications are provided for your reference:

HD-1 High-Silicon Stainless Steel Plates
Main Specifications: 4×1000×2500, 6×1000×2500, 8×1000×2500 …

HD-1 High-Silicon Stainless Steel Seamless Tubes
Main Specifications: Φ19×1.25, Φ21×1.25, Φ25×1.5 …

Competitive Advantage:

Exceptional corrosion resistance in concentrated sulfuric acid at elevated temperatures
Long service life without protection
Easy fabrication for weldingand assembly-friendly

General Product Information