---
title: "ASTM C773"
url: "https://mat-cs.com/astm-c773/"
description: "This test method covers two test procedures (A and B) for the determination of the compressive strength of fired whiteware materials."
---

ASTM Standard

# ASTM C773

Standard Test Method for Compressive (Crushing) Strength of Fired Whiteware Materials

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## Significance and Use

3.1 Resistance to compression is the measure of the greatest strength of a ceramic material. Ideally, ceramics should be stressed this way in use. This test is a measure of the potential load-bearing usefulness of a ceramic.

## Scope

1.1 This test method covers two test procedures (A and B) for the determination of the compressive strength of fired whiteware materials.

1.2 Procedure A is generally applicable to whiteware products of low- to moderately high-strength levels (up to 150 000 psi or 1030 MPa).

1.3 Procedure B is specifically devised for testing of high-strength ceramics (over 100 000 psi or 690 MPa).