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AISI H26
Category Steel
Class Tool steel
Type Tungsten hot work steel
Designations  United States: ASTM A681 , FED QQ-T-570 , UNS T20826

Composition
ElementWeight %
C  0.45-0.55 
Mn  0.15-0.40 
Si  0.15-0.40 
Cr  3.75-4.50 
Ni  0.3 
W  17.25-19.00 
V  0.75-1.25 
Cu  0.25 
P  0.03 
S  0.03 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 8.67 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 12.4  20-540  
Glossary
Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.