Forge Temperature Calculator

Determine the correct forge temperature range and heat color for different steel types and blacksmithing operations.

Steel Type

Operation

Tab to move between fields

Target Temperature

2,100 °F

Heat Color

Light Yellow

Target Temperature1,149 °C

Minimum Safe Temp2,000 °F

Maximum Safe Temp2,200 °F

SteelLow-Carbon Steel

OperationForging

How to Use This Calculator

Select the steel type: Low-Carbon (1018/1020), Medium-Carbon (1045), High-Carbon (1095), or Stainless (304/316).
Choose the operation: Forging, Forge Welding, Normalizing, or Annealing.
Review the Target temperature (°F) and acceptable Min/Max range for your steel and operation.
Color the flame or use a thermocouple to hit the target — compare with oxidation colors on the steel surface.
Use these temperatures as a guide; always verify with a physical color check before hammering.

What each input means

Steel Type: Select the type of steel you are working with. Each alloy has a different forging temperature range.
Operation: The type of operation affects the target temperature. Forge welding requires higher heat; annealing uses lower temperatures.

Engine last updated July 21, 2026. Checked against 1 independently-derived test — how we verify calculators.

The questions that sit next to this one — chosen by subject, including calculators filed under a different category.

Determine the safe forge welding temperature, flux type, and heat color when welding two different steel types together.

Find the correct tempering temperature, oxide color, and expected hardness (HRC) for your steel type and intended use.

Calculate the required stock bar length based on finished piece dimensions, starting stock cross-section, and expected material loss from forging.