HV Bolt 8.8

HV Bolt 8.8

[ AREAS-957 ]

HV Bolt Grade 8.8

We offer HV bolts & nuts in 8.8 grade, the choice of the grade depends upon the application and requirement of the customer

HV Bolt 8.8

We use high carbon steel material and high alloy steel raw materials to achieve the required properties in grade 8.8 standard

ISO 898-1:2013 grade 8.8 Chemical properties

Property class 

Material and heat treatment 

Chemical composition limit (cast analysis, %)a

Tempering temperature ⁰C 

Min.

C

P

S

Bb

min.

max.

max.

max.

max.

8.8f

Carbon steel with additives (e.g. Boron or Mn or Cr) quenched and tempered 

0,15e

0,40 

0,025 

0,025 

0,003 

425

Carbon steel quenched and tempered 

0,25 

0,55 

0,025 

0,025 

Alloy steel quenched and temperedg

0,20 

0,55 

0,025 

0,025 


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