Russia · GOST

A0

GOST 21631:1976 — GOST 21631

Chemical composition

wt% · log scale
0.010.11101001000Al99Cu0.05Fe+Si0.36Mg0.05Mn0.05Si0.95Ti0.02Zn0.1
  • min – max range
  • typical value

Mechanical properties

value range by condition
Tensile strength Rm≥100 MPaElongation A≥6 %sheet, Half hardened , > 0.8 <= 4.5 mmTensile strength Rm≥70 MPaElongation A≥15 %sheet, , > 0.3 <= 0.8 mmTensile strength Rm≥145 MPaElongation A≥4 %sheet +H, < 0.8 < 3.5 mmTensile strength Rm≥145 MPaElongation A≥3 %sheet +H, > 0.3 <= 0.8 mm

Chemical composition

ElementminmaxSimilarRemarks
Al99
Cu0.05
Fe+Si0.36
Mg0.05
Mn0.05
Si0.95
Ti0.02
Zn0.1

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
sheet, Half hardened , > 0.8 <= 4.5 mm≥100≥6
sheet, , > 0.3 <= 0.8 mm≥70≥15
sheet +H, < 0.8 < 3.5 mm≥145≥4
sheet +H, > 0.3 <= 0.8 mm≥145≥3
sheet +H, > 3.5 < 10.5 mm≥130≥5
sheet +M, < 10.5 > 0.9 mm≥60≥25
sheet +M, > 0.3 <= 0.5 mm≥60≥20
sheet +M, > 0.9 > 10.5 mm≥60≥30