Understanding The Purpose of ASTM Tests for Corrosion Resistance of Lubricating Greases

1. Understanding The Purpose of ASTM Tests for Corrosion Resistance of Lubricating Greases ASTM standard tests are recognized as industry benchmarks to ensure greases perform at their best capabilities, particularly as effective corrosion protectors under demanding operating conditions. These tests play a vital role in confirming that the right greases are selected to prevent rust and corrosion while providing reliable lubrication. With advancements in technology and machinery, selecting the correct grease has become essential for smooth operations and enhanced durability. Today, there are numerous varieties of greases available in the market, each exhibiting unique properties tailored for different lubrication requirements. These greases ensure machine components and bearings run optimally under extreme conditions, such as high temperatures, heavy loads, and high-speed applications. Beyond lubrication, greases also serve as critical corrosion protectors, shielding machinery components from environmental factors like water exposure, corrosive chemicals, fumes, and high humidity. At Molygraph, a leading name among lubricants and grease manufacturers in India, we understand the challenges faced in industrial environments. To address these challenges, we have developed our own rigorous testing protocols based on ASTM standards. These tests ensure that greases with varying chemistries are evaluated

2. for real-world applications and can perform reliably in the harshest environments. The primary ASTM tests used at Molygraph include: 1.ASTM D 6138: EMCOR Rust Test This test evaluates a grease’s ability to resist rust formation in bearings exposed to water. New bearings are thoroughly cleaned, lubricated with the grease under examination, and partially immersed in water. The setup is operated at 83 ± 5 rpm for one week, alternating between running and stopping cycles. After the test, the bearings are cleaned, examined, and rated based on the extent of corrosion. This ensures that the grease performs efficiently as a corrosion protector in challenging environments. 2.ASTM D 1743: Corrosion Preventive Test In this test, bearings are cleaned, lubricated, and subjected to a thrust load for 60 ± 3 seconds. This load ensures that the lubricant forms a consistent layer resembling patterns observed in real-world service conditions. The bearings are then exposed to water and stored for 48 ± 0.5 hours at 52 ± 1°C with 100% relative humidity. After this duration, the bearings are examined for corrosion. This test confirms that the grease has excellent corrosion preventive properties, protecting components under humid and wet conditions. 3.ASTM D 4048: Copper Corrosion Test This test assesses a grease’s compatibility with copper components, which are common in machinery. A polished copper strip is immersed in a sample of the grease and heated in a liquid bath or oven at 100 ± 1°C for 24 ± 5 minutes. After heating, the copper strip is cleaned and compared to a standardized chart to evaluate corrosion levels. The results ensure that the grease does not cause harmful chemical reactions with copper components, maintaining their structural integrity. Why ASTM Tests Matter The primary goal of these ASTM tests is to formulate high-performing greases that offer superior corrosion protection and ensure optimal machinery performance in the harshest industrial environments. By using standardized methods, Molygraph, as one of the top lubricants and grease manufacturers in India manufacturers in India, delivers products that meet stringent quality benchmarks. Molygraph’s High-Performance Solutions At Molygraph, we specialize in manufacturing high-performance specialty industrial lubricants that deliver unmatched value. Our products ensure: Longer operating life for machinery and components Reduced maintenance needs, lowering operational costs Enhanced productivity by minimizing downtime We are committed to providing greases and lubricants that serve as reliable corrosion protectors, ensuring smooth operation even under extreme environmental

3. and industrial conditions. Molygraph’s wide range of rust preventive oils, specialty lubricants, and greases are tailored to meet the demands of various industries, offering solutions that are both effective and cost-efficient. Get in Touch To learn more about our high-performance lubricants and greases, or to discuss your industry-specific requirements, contact us today: Call us at +91 81044009925 Email us at sales@molygraph.com Explore our range of specialty lubricants, rust preventive oils, and greases that serve your industry needs brilliantly. Partner with Molygraph, one of the leading grease manufacturers in India, and ensure that your machinery gets the best protection and performance.