ASTM G137 is the standard test method for ranking the resistance of plastic materials to sliding wear using a block-on-ring configuration. It provides a controlled way to compare how plastics perform when exposed to repeated sliding contact, which is often important in material selection and product evaluation. By focusing on relative wear resistance, this ASTM standard helps users make more consistent decisions about durability, service life, and performance under tribological loading.

What is ASTM G137?

ASTM G137 defines a test method for ranking plastic materials based on sliding wear behavior in a block-on-ring setup. The standard is intended to support comparative evaluation rather than broad claims about every possible service condition. In practice, it gives a repeatable framework for observing how candidate plastics respond to contact, friction, and wear under a specified test arrangement. That makes ASTM G137 useful when comparing materials for engineering applications where sliding durability matters.

Where is ASTM G137 used?

This standard is commonly used in laboratory and quality-control settings where plastic materials need to be compared under sliding wear conditions. It is relevant to testing workflows that evaluate candidate polymers, plastic components, or material formulations before selection for moving contact applications. ASTM G137 is especially useful when engineers, suppliers, or procurement teams need a consistent method to rank relative wear resistance and support material screening decisions with technical data.

Why is ASTM G137 important?

ASTM G137 matters because wear performance can influence reliability, maintenance needs, and product life. A defined test method helps reduce variability in how plastic materials are evaluated, which supports more consistent comparisons between suppliers and formulations. For compliance and procurement activities, it also provides a common technical reference that can improve communication between buyers, manufacturers, and test laboratories. Using ASTM G137 may help reduce risk when selecting plastics for sliding contact service.

• Block-on-ring sliding wear test method
• Ranking of plastic material resistance
• Comparative material evaluation
• Quality control and test reporting support
• Wear performance screening for plastics