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Chromium-Containingstainlesssteels CAS NO 71631-40-8


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CAS No.:71631-40-8

Grade:Pharmacy Grade

Content:99.9%

Brand:Customizable

Packaging:Customizable

Description

Chromium-Containing Stainless Steels represent a critical class of corrosion-resistant iron-based alloys essential for modern industrial infrastructure. Their value lies in the formation of a passive chromium oxide layer, which provides exceptional resistance to oxidation, corrosion, and high-temperature scaling. These materials are fundamental for manufacturers and fabricators in sectors demanding durability, hygiene, and structural integrity under challenging environmental conditions.

Application

  • Chemical Processing Equipment: Tanks, reactors, piping, and valves handling corrosive acids, alkalis, and organic compounds.
  • Food & Beverage Processing: Hygienic surfaces for fermentation tanks, cookers, conveyors, and storage vessels where cleanliness and corrosion resistance are paramount.
  • Pharmaceutical & Biotechnology: Critical components for reactors, filtration systems, and piping that require high purity, cleanability, and resistance to sterilization processes.
  • Architecture, Building & Construction (ABC): Structural elements, cladding, roofing, and handrails offering aesthetic appeal and long-term durability in marine and urban environments.
  • Automotive & Transportation: Exhaust systems, trim, structural components, and fuel lines benefiting from high-temperature strength and corrosion resistance.
  • Energy & Power Generation: Components for nuclear, fossil fuel, and renewable energy systems, including turbine blades, heat exchangers, and flue gas desulfurization units.
  • Medical Devices & Surgical Instruments: Implants, surgical tools, and diagnostic equipment requiring biocompatibility, sterilizability, and non-reactivity.
  • Marine & Offshore Engineering: Hulls, propellers, and offshore platform components exposed to highly corrosive saltwater atmospheres.

Basic Information

Item Details
Product Name Chromium-Containing Stainless Steels
CAS No. 71631-40-8
Molecular Formula Not applicable (Alloy)
Molecular Weight Not applicable (Alloy)
Synonyms Stainless Steel; Corrosion-Resistant Steel; Inox Steel; Chromium Steel; FeCr Alloy; Austenitic Stainless Steel (common type); Ferritic Stainless Steel; Martensitic Stainless Steel; Duplex Stainless Steel; AISI 304; AISI 316; 18/8 Stainless; Rustless Steel
EINECS Contact for details

Quality Control

Our Chromium-Containing Stainless Steels are manufactured and supplied under a stringent quality management system. Material composition and mechanical properties are verified against international standards such as ASTM, EN, ISO, and JIS. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing critical parameters including chromium, nickel, and molybdenum content, yield strength, tensile strength, elongation, and hardness. We ensure traceability and consistent batch-to-batch quality for your production needs.

Storage

Preserve in a dry, well-ventilated warehouse. Store away from corrosive fumes and contaminants. Keep different grades separated to avoid mix-ups. For long-term storage of finished products, protective packaging is recommended to prevent surface scratching and pitting corrosion.

Specification

Item Specification
Chromium (Cr) Content 10.5% min. (Typical range 16-26%)
Nickel (Ni) Content Contact for details (Grade dependent)
Molybdenum (Mo) Content Contact for details (Grade dependent)
Carbon (C) Content 0.03% - 1.20% (Grade dependent)
Tensile Strength ≥ 515 MPa (Grade dependent)
Yield Strength (0.2% Offset) ≥ 205 MPa (Grade dependent)
Elongation ≥ 40% (Grade dependent)
Hardness (Rockwell B) Contact for details
Corrosion Resistance (Salt Spray) Per ASTM B117 / ISO 9227
Surface Finish 2B, BA, No. 4, HL, etc. (As requested)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.

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Each batch undergoes strict QC, accompanied by COA, MSDS, and full compliance with international standards.

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