Categoria · 156 qualidades

Aços para extrusão a frio

Os aços para extrusão a frio são materiais de engenharia concebidos para serem transformados em componentes por conformação a frio e extrusão. Combinam a ductilidade necessária para uma deformação plástica substancial com a resistência e a tenacidade exigidas em elementos de fixação conformados a frio, peças automóveis e outros componentes de precisão.

Qualidade	N.º de material	C	P	S	Mn	Si	Cr
SWCH35K	—	—	—	—	—	—	—
SWRCH38K	—	0.35 - 0.41	max 0.03	max 0.035	0.6 - 0.9	0.1 - 0.35	max 0.2
SNCM240RCH	—	0.38 - 0.43	max 0.03	max 0.03	0.7 - 1	0.15 - 0.35	0.4 - 0.6
SMnC443RCH	—	0.4 - 0.46	max 0.03	max 0.03	1.35 - 1.65	0.15 - 0.35	0.35 - 0.7
SWCH43K	—	—	—	—	—	—	—
SWRCH45K	—	0.42 - 0.48	max 0.03	max 0.035	0.6 - 0.9	0.1 - 0.35	max 0.2
SNCM447RCH	—	0.44 - 0.5	max 0.03	max 0.03	0.6 - 0.9	0.15 - 0.35	0.6 - 1
SCr420HRCH	—	0.17 - 0.23	max 0.03	max 0.03	0.55 - 0.95	0.15 - 0.35	0.85 - 1.25
SWRCHB237	—	0.34 - 0.4	max 0.03	max 0.03	0.6 - 0.9	0.1 - 0.35	—
SWCH10R	—	—	—	—	—	—	—
SWRCH10R	—	0.08 - 0.13	max 0.04	max 0.04	0.3 - 0.6	—	max 0.2
SCr435HRCH	—	0.32 - 0.39	max 0.03	max 0.03	0.55 - 0.95	0.15 - 0.35	0.85 - 1.25
SWRCHB331	—	0.28 - 0.34	max 0.03	max 0.03	0.7 - 1	0.1 - 0.35	—
SWCH17R	—	—	—	—	—	—	—
SWRCH17R	—	0.15 - 0.2	max 0.04	max 0.04	0.3 - 0.6	—	max 0.2
SCM415RCH	—	0.13 - 0.18	max 0.03	max 0.03	0.6 - 0.9	0.15 - 0.35	0.9 - 1.2
SWRCHB620	—	0.17 - 0.23	max 0.03	max 0.03	1.1 - 1.4	0.1 - 0.35	—
SWCH12A	—	—	—	—	—	—	—
SWRCH12A	—	0.1 - 0.15	max 0.03	max 0.035	0.3 - 0.6	max 0.1	max 0.2
SCM420RCH	—	0.18 - 0.23	max 0.03	max 0.03	0.6 - 0.9	0.15 - 0.35	0.9 - 1.2
SWCHB223	—	0.2 - 0.26	max 0.03	max 0.03	0.6 - 0.9	0.1 - 0.35	—
SWCH19A	—	—	—	—	—	—	—
SWRCH20A	—	0.18 - 0.23	max 0.03	max 0.035	0.3 - 0.6	max 0.1	max 0.2
SCM430RCH	—	0.28 - 0.33	max 0.03	max 0.03	0.6 - 0.9	0.15 - 0.35	0.9 - 1.2
SWCHB331	—	0.28 - 0.34	max 0.03	max 0.03	0.7 - 1	0.1 - 0.35	—
SWCH10K	—	—	—	—	—	—	—
SWRCH12K	—	0.1 - 0.15	max 0.03	max 0.035	0.3 - 0.6	0.1 - 0.35	max 0.2
SCM440HRCH	—	0.37 - 0.44	max 0.03	max 0.03	0.55 - 0.95	0.15 - 0.35	0.85 - 1.25
SWCHB620	—	0.17 - 0.23	max 0.03	max 0.03	1.1 - 1.4	0.1 - 0.35	—
SWCH17K	—	—	—	—	—	—	—
SWRCH18K	—	0.15 - 0.2	max 0.03	max 0.035	0.6 - 0.9	0.1 - 0.35	max 0.2
SCM822HRCH	—	0.19 - 0.25	max 0.03	max 0.03	0.55 - 0.95	0.15 - 0.35	0.85 - 1.25
SMn420RCH	—	0.17 - 0.23	max 0.03	max 0.03	1.2 - 1.5	0.15 - 0.35	max 0.35
SWCH24K	—	—	—	—	—	—	—
SWRCH25K	—	0.22 - 0.28	max 0.03	max 0.035	0.3 - 0.6	0.1 - 0.35	max 0.2
SNC631HRCH	—	0.26 - 0.35	max 0.03	max 0.03	0.3 - 0.7	0.15 - 0.35	0.55 - 1.05
SMn438RCH	—	0.35 - 0.41	max 0.03	max 0.03	1.35 - 1.65	0.15 - 0.35	max 0.35
SWCH33K	—	—	—	—	—	—	—
SWRCH35K	—	0.32 - 0.38	max 0.03	max 0.035	0.6 - 0.9	0.1 - 0.35	max 0.2
SNCM220HRCH	—	0.17 - 0.23	max 0.03	max 0.03	0.6 - 0.95	0.15 - 0.35	0.35 - 0.65
SMnC420RCH	—	0.17 - 0.23	max 0.03	max 0.03	1.2 - 1.5	0.15 - 0.35	0.35 - 0.7
SWCH41K	—	—	—	—	—	—	—
SWRCH43K	—	0.4 - 0.46	max 0.03	max 0.035	0.6 - 0.9	0.1 - 0.35	max 0.2
SNCM439RCH	—	0.36 - 0.43	max 0.03	max 0.03	0.6 - 0.9	0.15 - 0.35	0.6 - 1
SCr420RCH	—	0.18 - 0.23	max 0.03	max 0.03	0.6 - 0.9	0.15 - 0.35	0.9 - 1.2
SWCH50K	—	—	—	—	—	—	—
SWRCHB223	—	0.2 - 0.26	max 0.03	max 0.03	0.6 - 0.9	0.1 - 0.35	—
SWCH8R	—	—	—	—	—	—	—
SWRCH8R	—	max 0.1	max 0.04	max 0.04	max 0.6	—	max 0.2
SCr435RCH	—	0.33 - 0.38	max 0.03	max 0.03	0.6 - 0.9	0.15 - 0.35	0.9 - 1.2

Normas que abrangem esta categoria

Intervalos de propriedades

Propriedade	Unidade	Mín	Máx	Qualidades
Rm	N/mm²	290	1076	48
Re	N/mm²	225	958	4
A	%	17	30	3
A5	%	6	30	4
Z	%	30	55	48
KCU	kJ/m²	150	400	1
HB	—	121	255	3
HRB	—	80	97	37
rho	g/cm³	7.549	7.9	6
E	GPa	152	217	4
alpha	10^-6/K	11.9	15.3	3
lambda	W/(m·K)	26	56.1	4
cp	J/(kg·K)	465	720	3
rho_el	nΩ·m	233	1156	2
Ac1	°C	730	810	4
Ac3	°C	755	950	4
Ar3	°C	690	840	4
Ar1	°C	680	780	4

Calculado a partir de 48 qualidades desta categoria com um valor registado.

Intervalo de composição

Propriedade	Unidade	Mín	Máx	Qualidades
B	%	0.0008	0.0008	24
C	%	0.08	0.53	118
Al	%	0.02	0.02	10
Si	%	0.1	0.4	112
P	%	0.025	0.04	118
S	%	0.025	0.04	118
Cr	%	0.2	1.8	90
Mn	%	0.3	1.7	118
Ni	%	0.2	3.5	88
Cu	%	0.25	0.3	92
Mo	%	0.15	0.6	25

Calculado a partir de 118 qualidades desta categoria com um valor registado.