ASTM A370 Mechanical Testing of Steel Products

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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.

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.

Reading the Designation

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

Related Standards

ASTM E8/E8M is the underlying tension method and ISO 6892-1 is the ISO equivalent.

Request a Quote

Setting up steel-product mechanical testing? Request a quote and our team will help you build a system matched to your required tests and specimen types.


TensileMill CNC products for ASTM A370

Our specimen-preparation systems and testing equipment compatible with ASTM A370:


Build your ASTM A370 workflow with TensileMill CNC

TensileMill CNC designs and builds the systems labs use for standards-based mechanical testing. Our range includes universal testing machines, flat and round specimen-preparation systems, and matched grips for metals. Share your material mix and throughput, and we will recommend a setup that fits ASTM A370.