Mobilmet 426 (5 Gal. Pail)

Mobil 103801

This product has a lead time of 10-14 business days.

Mobilmet 420 Series products are high-performance multi-purpose cutting oils. They are chlorine-free, non-staining and non-corrosive. They are designed for light to moderate duty cutting operations and they are also suitable as machine tool lubricants and for use in light duty hydraulic systems. They are formulated from high quality base oils and select additives to provide effective machining performance in a wide variety of operations of both ferrous and non-ferrous metals. The oils are light-colored and transparent so that the work area can be clearly seen at all times. The Mobilmet 420s are formulated to prevent the formation of oil mist in the vicinity of the machine tool.

Mobilmet 420 Series fluids are resistant to foaming, even with excess splashing so that superior performance is provided in the machine tool lubrication system. With relatively low pour points and high viscosity indexes, they are not difficult to dispense in cold conditions and provide adequate film strength in hot-running machine tool bearings under load.

Product Data Sheet

In addition to their machining performance characteristics, the Mobilmet 420 Series fluids are multi-purpose in nature which helps reduce the problems associated with cross-contamination, thus improving production and reducing rejects. They are formulated using chlorine-free additives reducing the environmental impact of disposal and spillage. The Mobilmet 420 Series fluids control built-up edge and protect the tool tip from wear. They provide improved surface finish that may eliminate the need for finish turning or forming before grinding.

Features and potential benefits of Mobilmet 420 products include:

Features Advantages and Potential Benefits
Excellent machining performance Increased production resulting from longer tool life and reduced downtime for tool changes and wheel dressing
Improved surface finish and dimensional accuracy resulting in fewer rejects and better quality finished products
Helps increase feed rates and machine speeds
Suitable for a wide range of ferrous and non-ferrous metals and machining operations Fewer cutting oils required, potential for reduced inventory costs
Multi-service capability Eliminates cross-contamination problems and provides further inventory benefits
Light, transparent color Provides a clear view of the work area at all times

Mobilmet 420 Series fluids are recommended for a wide range of machining operations on all types of metals. They can be used as multi-purpose oils when a common fluid is required for machine tool lubrication and as a hydraulic fluid assuming proper viscosity selection.

  • Mobilmet 423 and Mobilmet 424 are recommended for machining aluminum, magnesium and copper, brasses and bronzes and, in addition, are recommended for steels and cast irons having a Brinell hardness up to 200. They can be used for severe cutting operations of difficult-to-machine non-ferrous alloys such as silicon-copper, silicon-bronze and copper-nickel. They are very effective lubricants for the machine tool lubrication system under a wide range of temperature conditions
  • Mobilmet 426 and Mobilmet 427 are recommended for critical machining of non-ferrous metals and automatic operations on materials having a Brinell hardness up to about 300
Mobilmet 420 Series 423 424 426 427
Viscosity, ASTM D 445
cSt @ 40º C 15 23 32 46
cSt @ 100º C 3.5 4.9 5.7 6.9
Pour Point, ºC, ASTM D 97 -15 -15 -15 -12
Flash Point, ºC, ASTM D 92 182 200 210 212
Specific Gravity @15º C kg/l, ASTM D 1298 0.859 0.862 0.874 0.877
Copper Strip Corrosion, ASTM D 130, 3 hrs @ 100º C 1B (max) 1B (max) 1B (max) 1B (max)
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how does it do on 316 stainless steel?
John F on Aug 17, 2018
BEST ANSWER: To give you a definite answer I would need to know what you're doing with the 316 stainless steel. According to Mobil Tech, the MobilMet 426 does pretty well with most products, however, they do not recommend honing, drilling deal holes or broaching with this product. It is not an aggressive oil but they feel it will do well on 316 stainless steel.