Metallurgy Hardness Converter (Rockwell HRC ↔ Vickers HV ↔ Brinell HBW & Tensile MPa)

Convert Rockwell C (HRC) into Vickers (HV), Brinell (HBW), and approximate steel tensile strength (MPa/ksi).

Vickers Hardness Equivalent (HV)
478 HV
Brinell Hardness Equivalent (HBW) 454 HBW
Approx. Ultimate Tensile Strength (MPa) 1,566 MPa
Approx. Ultimate Tensile Strength (ksi) 227.13 ksi
Inputs
⚡ Scenarios:
HRC
Rockwell C scale hardness (HRC 20 to 68 for hardened/tempered steels).
Results & Graph
Vickers Hardness Equivalent (HV)
478 HV
Brinell Hardness Equivalent (HBW)
454 HBW
Approx. Ultimate Tensile Strength (MPa)
1,566 MPa
Approx. Ultimate Tensile Strength (ksi)
227.13 ksi

Vickers Hardness Equivalent (HV)

Graph 1 • Rockwell / Vickers / Brinell Hardness • Domain Architecture & Live Telemetry Maps Rockwell Hrc Value through Rockwell / Vickers / Brinell Hardness Formula.
MATERIALS & INDUSTRIAL CON Vickers Hardness Equivalen 478 HV Brinell Hardness Equivalen 454 HBW Rockwell / Vickers / Brinell Hardness • Component Waterfall Vickers Hardness Equivalent (H 478 HV Brinell Hardness Equivalent (H 454 HBW Approx. Ultimate Tensile Stren 1,566 MPa Approx. Ultimate Tensile Stren 227.13 ksi
Graph 2 • Vickers Hardness Equivalent (HV) Across Rockwell Hrc Value Sweep (40% → 160%) Evaluates HV ≈ 145 × exp(0.0265 × HRC); HBW ≈ 0.95 × HV; Tensile_MPa ≈ 3.45 × across 7 operating points (current input highlighted).
0 HV 483.5 HV 966.9 HV 246 18HRC 297 27HRC 376 36HRC 478 45HRC 607 54HRC 770 63HRC 879 72HRC
Graph 3 • Rockwell / Vickers / Brinell Hardness Multi-Scenario Envelope Shows how Vickers Hardness Equivalent (HV) responds across ±30% scenario shifts.
0 HV 375.7 HV 751.3 HV 334 -30% 400 -15% 478 +0% 571 +15% 683 +30%
Summary: 45 HRC corresponds to ~478 HV Vickers, ~454 HBW Brinell, and an approximate steel Ultimate Tensile Strength of 1,566 MPa (227.1 ksi).
Summary: 45 HRC corresponds to ~478 HV Vickers, ~454 HBW Brinell, and an approximate steel Ultimate Tensile Strength of 1,566 MPa (227.1 ksi).
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Formula & Mathematical Methodology: Rockwell / Vickers / Brinell Hardness Formula

HV ≈ 145 × exp(0.0265 × HRC)
HBW ≈ 0.95 × HV
TensileMPa ≈ 3.45 × HBW
HV ≈ 145 × exp(0.0265 × HRC); HBW ≈ 0.95 × HV; Tensile_MPa ≈ 3.45 × HBW
  • rockwellHrcValue: Rockwell C scale hardness (HRC 20 to 68 for hardened/tempered steels).

Rounding: Internal floating-point calculations run in 64-bit IEEE-754 double precision; display values round to 2–4 decimal places.

Worked Example: Rockwell / Vickers / Brinell Hardness Worked Example

Convert Rockwell C (HRC) into Vickers (HV), Brinell (HBW), and approximate steel tensile strength (MPa/ksi).

  1. Enter the input measurement, system configuration, or astronomical parameter.
  2. Apply the standard conversion or analytical equation: HV ≈ 145 × exp(0.0265 × HRC); HBW ≈ 0.95 × HV; Tensile_MPa ≈ 3.45 × HBW.
  3. Inspect the primary metric, secondary equivalents, and 3 real-time SVG graphs.
Result: Computes Rockwell / Vickers / Brinell Hardness via HV ≈ 145 × exp(0.0265 × HRC); HBW ≈ 0.95 × HV; Tensile_MPa ≈ 3.45 × HBW.

Frequently Asked Questions

How does the Metallurgy Hardness Converter (Rockwell HRC ↔ Vickers HV ↔ Brinell HBW & Tensile MPa) perform the calculation?

It evaluates HV ≈ 145 × exp(0.0265 × HRC); HBW ≈ 0.95 × HV; Tensile_MPa ≈ 3.45 × HBW directly in your browser and renders three custom SVG charts in real time.

Can I solve backwards for an input parameter using Goal Seek?

Yes. Click "🎯 Goal Seek" in the results toolbar to solve backwards for any numeric input field.

Does this tool work offline?

Yes. All calculations run 100% locally in your browser with full offline PWA support.

Unit Conversions · Materials & Industrial Conversions

Metallurgy Hardness Converter (Rockwell HRC ↔ Vickers HV ↔ Brinell HBW & Tensile MPa): inputs, method, and how to read the result

Convert Rockwell C (HRC) into Vickers (HV), Brinell (HBW), and approximate steel tensile strength (MPa/ksi).

Choose inputs for the case you are checking

The defaults are illustrative. Replace them with values for your case and keep the units shown beside each field.

  • Rockwell Hrc Value: Rockwell C scale hardness (HRC 20 to 68 for hardened/tempered steels).

What the calculation includes

With the default values shown, Vickers Hardness Equivalent (HV) is 478 HV. The calculation follows Rockwell / Vickers / Brinell Hardness Formula; the formula and variable definitions above show how the inputs combine.

One-input check: With the other defaults held constant, changing Rockwell Hrc Value from 45 HRC to 50 HRC changes Vickers Hardness Equivalent (HV) from 478 HV to 546 HV. This is a comparison inside the calculator's stated model, not a prediction.

Where to use caution

  • Uses official NIST Special Publication 811, IEEE/RFC systems engineering, APA psychometric, and USNO astronomical formulas.
  • Empirical metallurgy and calendar conversions represent standard reference-condition approximations.

Scope: Global NIST, IEEE, APA & Astronomical Standard Check the assumptions and limitations against your situation before relying on the estimate.

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