ASTM A370 Mechanical Testing of Steel Products

ASTM A370 · ASTM standard

ASTM A370 is the umbrella standard for the mechanical test methods and definitions used on steel, stainless steel, and related alloy products. It ties together the individual tests a steel product specification calls for. To match this to your program, talk with our team.

What ASTM A370 Covers

Rather than defining one test, A370 collects the mechanical tests applied to steel products and the terms and calculations that go with them. A product standard points to A370 for how each required test is performed and reported.

Reading the Designation

Cited as ASTM A370-YY. Confirm the edition and which annex tests the product specification requires.

Tests Brought Together

The methods A370 organizes span the common acceptance tests for steel:

Table 1. Mechanical tests organized by ASTM A370.
Test	Purpose
Tension	Strength and ductility (yield, tensile, elongation, reduction of area)
Hardness	Brinell and Rockwell hardness
Impact	Charpy notch toughness
Bend	Ductility and soundness

Preparing Specimens

Because A370 governs several tests, specimen preparation must suit each: machined tension coupons, prepared hardness surfaces, and notched impact bars. Automated CNC preparation keeps tension and impact coupons consistent. To configure steel-product testing, request a quote.