Why is stainless steel the most suitable for grease samplers?

Why is stainless steel the most suitable for grease samplers?

Stainless steel is the most suitable material for oil samplers due to its comprehensive advantages:

‌Superior Corrosion Resistance‌
Stainless steel (e.g., SUS304) effectively resists acidic substances, salts, and oxidation in oils, preventing data contamination or equipment damage caused by corrosion. The passive film (Cr₂O₃) formed on its surface ensures long-term chemical stability.

‌Hygiene & Safety‌
It meets food-grade standards, does not release harmful substances (e.g., plasticizers), and has a smooth surface for easy cleaning, reducing oil residue and microbial growth risks.

‌Excellent Mechanical Properties‌

‌High Strength‌: Resistant to pressure and impact, ideal for frequent use (e.g., lab or industrial bulk sampling).

‌Temperature Adaptability‌: Stable performance between -20°C and 80°C, avoiding deformation from thermal expansion.

‌Long-Term Cost-Effectiveness‌
Stainless steel lasts over 10 years, far exceeding ordinary plastics or cast iron, minimizing replacement and maintenance costs.

‌Industry Validation‌
Widely used in catering, petrochemicals, etc. (e.g., oil-water separators), with proven durability and efficiency.

‌Comparative Analysis‌

‌Glass‌: Chemically inert but fragile, unsuitable for industrial settings.

‌Food-Grade Plastics (PE/PP)‌: Low-cost but prone to aging and inadequate temperature/strength.

‌Lead-Containing Ceramics/Cast Iron‌: High contamination risk and difficult maintenance.

In conclusion, stainless steel outperforms alternatives in performance, safety, and economy, making it the ideal choice for oil sampling.

ST123A plant oil sample is made of 304 stainless steel in the system, one-time maximum sampling of up to 500g. Products are suitable for grease sampling.

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