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AISI 8630H
Category Steel
Class Alloy steel
Type H-steel
Common Names Nickel-chromium-molybdenum steel
Designations  Germany: DIN 1.6545
Italy: UNI 30 NiCrMo 2 KB
United States: ASTM A304 , SAE J1268 , UNS H86300

Composition

ElementWeight %
C  0.27-0.33 
Mn  0.60-0.95 
Cr  0.35-0.65 
Ni  0.35-0.75 
Mo  0.15-0.25 
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) 565  25  annealed at 845°C  more
Yield Strength (Mpa) 370 
Elongation (%) 29 
Reduction in Area (%) 59 
Hardness (HB) 156  25  annealed at 845°C more

Thermal Properties

Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 11.2  21-100 more  
Glossary
STEM Career Outlook

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

CNC Machining Design Guide

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

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Selecting the Right 3D Printer

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