ASTM D3520-04
Standard Test Method for Quenching Time of Heat-Treating Fluids (Magnetic Quenchometer Method)

Standard No.

ASTM D3520-04

Release Date

2004

Published By

American Society for Testing and Materials (ASTM)

Status

Withdraw 2008-01

Latest

ASTM D3520-04

Scope

The results obtained by the test method described are useful as guides in selecting fluids with respect to quenching speed characteristics desired for metal quenching applications.

Note 38212;Although this test method has been found useful for some water-based fluids, the statistical significance of the test has been established only by round-robin testing of petroleum-based fluids.

These results will provide a measure of quenching speed (cooling rate) from approximately 885°C (1625°F) to 354°C (670°F) and are not directly proportional to hardness obtainable on metals quenched therein as many other factors are involved in the quenching process in actual plant operation with production parts.

Note 48212;Test Method D 6200 describes the equipment and procedure for characterizing the time-temperature performance of a quenching oil through the entire cooling process.

FIG. 1 Magnetic Quenchometer

FIG. 2 Test Sequence in Beaker

1.1 This test method covers a procedure for making a comparative evaluation of the quenching speed characteristics of petroleum fluids used in the quenching of metals by means of the Magnetic Quenchometer.

Note 18212;A comparison method for testing the hardenability of steel is Test Method A 255.

Note 28212;An additional comparison method for evaluation of the quenching speed characteristics of petroleum fluids used in the quenching of metals is Test Method D 6200.

1.2 This test method provides a measure of changes in oil chemistry due to contamination, base oil degradation, and additive drag-out during use. This test measures changes in the quenching speed characteristics of petroleum fluids at the high temperature (>354176;C). This test method does not reliably predict metallurgical performance.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.

ASTM D3520-04 Referenced Document

• ASTM A255 Standard Test Method for Determining Hardenability of Steel
• ASTM D1218 Standard Test Method for Refractive Index and Refractive Dispersion of Hydrocarbon Liquids
• ASTM D1744 Standard Test Method for Determination of Water in Liquid Petroleum Products by Karl Fischer Reagent
• ASTM D287 Standard Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer Method)
• ASTM D445 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (the Calculation of Dynamic Viscosity)
• ASTM D484 Standard Specification for Hydrocarbon Dry Cleaning Solvents
• ASTM D6200 Standard Test Method for Determination of Cooling Characteristics of Quench Oils by Cooling Curve Analysis
• ASTM D91 Standard Test Method for Precipitation Number of Lubricating Oils
• ASTM D92 Standard Test Method for Flash and Fire Points by Cleveland Open Cup
• ASTM D97 Standard Test Method for Pour Point of Petroleum Products

ASTM D3520-04 history

• 2004 ASTM D3520-04 Standard Test Method for Quenching Time of Heat-Treating Fluids (Magnetic Quenchometer Method)
• 2017 ASTM D3520-88(1998) Standard Test Method for Quenching Time of Heat-Treating Fluids (Magnetic Quenchometer Method) (Withdrawn 2008)