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AISI 5140H
Category Steel
Class Alloy steel
Type H-steel
Common Names Chromium steel
Designations  France: AFNOR 45 C 2
Germany: DIN 1.7006
United States: ASTM A304 , SAE J1268 , UNS H51400

Composition

ElementWeight %
C  0.37-0.44 
Mn  0.60-1.00 
Cr  0.60-1.00 
P  0.035 
S  0.040 
Si  0.15-0.30 

Mechanical Properties

Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.7-8.03 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  
Tensile Strength (Mpa) 570  25  annealed at 830°C  more
Yield Strength (Mpa) 295 
Elongation (%) 28.6 
Reduction in Area (%) 57 
Hardness (HB) 167  25  annealed at 830°C more

Thermal Properties

Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 12.6  20-200 more  
Thermal Conductivity (W/m-K) 44.6  100 more  
Specific Heat (J/kg-K) 452  20-100 more  

Electric Properties

Properties Conditions 
T (°C)Treatment
Electric Resistivity (10-9W-m) 228  20 more  
Glossary
3D Scanners

A white paper to assist in the evaluation of 3D scanning hardware solutions.

Salary Expectation

8 things to know about the interview question "What's your salary expectation"?

Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

CNC Machining Design Guide

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