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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.

Mechanical Engineers Outlook

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

STEM Career Outlook

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

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AISI 5135H
Category Steel
Class Alloy steel
Type H-steel
Common Names Chromium steel
Designations  France: AFNOR 42 C 4
Germany: DIN 1.7035
Italy: UNI 40 Cr 4 , UNI 41 Cr 4 KB
Japan: JIS SCr 4 H
United Kingdom: B.S. 2 S 117 , B.S. 530 A 40 , B.S. 530 H 40 , B.S. 530 M 40
United States: ASTM A304 , SAE J1268 , UNS H51350

Composition

ElementWeight %
C  0.32-0.38 
Mn  0.50-0.90 
Cr  0.70-1.15 
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  
Glossary
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.

Mechanical Engineers Outlook

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

STEM Career Outlook

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