GENERAL SCOPE

ASTM A350 Grade LF2 / ASTM A105 is a general Carbon steel typically supplied in the Normalised, Normalised and Tempered or Quenched and Tempered condition. It is used extensively for the manufacture of flanges and fittings and exhibits moderate strength and impact toughness properties.

CHEMICAL COMPOSITION

 

C

Si

Mn

P

S

Cr

Mo

Ni

Al

Sn

Cu

Min

 0.15 0.60 0.015

Max

 0.22 0.30 1.35 0.02 0.015 0.30 0.12 0.40 0.035 0.01 0.40

MECHANICAL PROPERTIES

Tensile

Result

RP 0.2%

36,000 PSI MIN

RM

70,000 - 95,000 PSI

Elongation

22%

Reduction of area

30%

HBW10/3000

Max 187 BHN

KCV @ -46 DEG C

20J min Ave, 16J min single

 

SURFACE CONDITION                                               As Rolled

REDUCTION RATIO                                                      4:1 Min

STRUCTURE                                                                   Grain size will be ASTM 5 or finer.

ULTRASONIC EXAMINATION                                 Ultrasonic examination available per ASTM A388/API6A Latest Edition

STOCK RANGE         

Rolled Bar                                                                        Normalised Condition                                               40mm – 230mm ⌀

Forged Bar                                                                      Normalised Condition                                                250mm – 460mm ⌀