Introduction

 

Alloy steels comprise many types of steels whose compositions are more than the limitations of C, Mo, Cr, Va, Mn, Ni, Si, and B which have been allocated for carbon steels. These steels are more responsive to mechanical and heat treatments than carbon steels.

The following datasheet provides more details on AISI 4820 alloy steel.

 

Category 

Steel

Class 

Alloy steel

Type 

Standard

Common Names 

Nickel-molybdenum steel

Designations 

United States: ASTM A322 , ASTM A331 , ASTM A505 , ASTM A519 , ASTM A535 , SAE J404 , SAE J412 , SAE J770 , UNS G48200

 

 

Composition

 

Element

Weight %

C

 0.18-0.23 

Mn

 0.50-0.70 

P

 0.035 (max) 

S

 0.04 (max) 

Si

 0.15-0.30 

Ni

 3.25-3.75 

Mo

 0.20-0.30 

 

carbon-steel-plate-manufacturers-in-india.jpg

 


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