硬度换算

BUEHLER?Hardness Conversion Charts

Table of Contents

Hardness Conversion Chart for Non-Austenitic Steels (Rockwell C Range) . . . . . . . . . . . . . .1 Hardness Conversion Chart for Non-Austenitic Steels (Rockwell B Range) . . . . . . . . . . . . . .3 Hardness Conversion Chart for Austenitic Stainless Steel Sheet (Rockwell C Range) . . . . . . . . . . .4 Hardness Conversion Chart for Austenitic Stainless Steel Sheet (Rockwell B Range) . . . . . . . . . . . . .5 Hardness Conversion Chart for Nickel and High-Nickel Alloys . . . . . . . . . . . . . . . . . . . . . . . .6 Hardness Conversion Chart for Cartridge Brass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Hardness Conversion Chart for Copper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Hardness Conversion Chart for Wrought Aluminum Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Common Applications and Nomenclature for Hardness Tests . . . . . . . . . . . . . . . . . . . . . . .10

The non-austenitic steels included carbon, alloy and tool steels in the as-forged, annealed, normalized, and quenched and tempered conditions.

The non-austenitic steels included carbon, alloy and tool steels in the as-forged, annealed, normalized, and quenched and tempered conditions.

Hardness Conversion Chart for Austenitic Stainless Steel Sheet (Rockwell C Range)

The austenitic stainless steel sheet included in the original testing was as follows: Types 201, 202, 301, 302, 304, 304L, 305, 316, 316L, 321 and 347.

The austenitic stainless steel sheet included in the original testing was as follows: Types 201, 202, 301, 302, 304, 304L, 305, 316, 316L, 321 and 347.

The copper included in the original testing was UNS C10200 to C14200 inclusive. The conversions are listed for strip 0.040 in (1.02 mm) or greater in thickness.

Test Symbol Indenter Force (kg)depth (mm)*Application

Test Symbol Indenter Force (kg)depth (mm)*Application

times the depth of the indentation with a diamond indenter and 15 times the depth of the indentation with a ball indenter.

EXAMPLE: A hardness reading of HRB 43 is observed

t = (130 - HRB) / 500

t = (130 - 43) / 500

t = 0.174 mm or 0.0071 in

Test Piece thickness should be 15 x t or 2.61 mm (0.1in)

**Upper limit is 92 HRG to avoid possible flattening of the ball.