Brazil · NBR

1012

ABNT NBR NM 202:2000 — Steel round wire for cold heading fasteners, nuts, rivers and similar components

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ABNT NBR NM 202:2000Steel round wire for cold heading fasteners, nuts, rivers and similar components
ABNT NBR 6915:1991Steel for die hot forging. Specification
ABNT NBR 9769:1996Normalization heat treatment of rolled or forged carbon steel or steel alloy bars
ABNT NBR 6330:1980Cold-rolled carbon steel wire rod for heading and general use
ABNT NBR NM 87:2000Carbon steel and steel alloy for general engineering purposes - Designation and chemical composition
ABNT NBR NM 87:1996Carbon steel and steel alloy for general engineering purposes - Designation and chemical composition

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wt% · log scale

value range by condition

Element	min	max
C	0.1	0.15
Mn	0.3	0.6
P		0.04
S		0.05

Heat treatment / condition	Yield strength	Tensile strength	Elongation	Reduction of area	Impact energy	Hardness
Wires	≤490					HB ≤143
Wires, annealed	≤520					HB ≤156