Propriedades mecânicas - Porcas
Normas
Dureza
Tensão de prova
Brinell
Rockwell
p/série pesada
p/série leve
ASTM A 194 grau 1
min.121 HB
min. 70 HRB
130 Ksi
120 Ksi
ASTM A 194 grau 2
159 a 352 HB
min. 84 HRB
150 Ksi
135 Ksi
ASTM A 194 gr. 2H (até o1.1/2")
248 a 352 HB
24 a 38 HRC
175 Ksi
150 Ksi
ASTM A 194 gr.2H (>o1.1/2")
212 a 352 HB
min. máx.
95 HRB 38 HRC
175 Ksi
150 Ksi
ASTM A 194 gr.2HM/7M
159 a 237 HB
máx.22 HRC
150 Ksi
135 Ksi
ASTM A 194 gr. 3/4/7/16
248 a 352 HB
24 a 38 HRC
175 Ksi
150 Ksi
ASTM A 194 grau 6
228 a 271 HB
20 a 28 HRC
150 Ksi
135 Ksi
ASTM A 194 gr. 8/8M/8T
126 a 300 HB
60 a 105 HRB
80 Ksi
75 Ksi
ASTM A 194 gr. 8A/8MA/8TA
126 a 192 HB
60 a 90 HRB
80 Ksi
75 Ksi
ASTM A 563 grau O
103 a 302 HB
min. máx
55 HRB 32 HRC
----
69 Ksi
ASTM A 563 grau A
116 a 302 HB
min. máx.
68 HRB 32 HRC
100 Ksi
90 Ksi
ASTM A 563 gr. B (o1/4" a o1")
121 a 302 HB
min. máx.
69 HRB 32 HRC
133 Ksi
120 Ksi
ASTM A 563 gr. B (o1.1/8" a o1.1/2")
121 a 302 HB
min. máx.
69HRB 32HRC
116 Ksi
105 Ksi
ASTM A 563 grau C
143 a 352 HB
min. máx.
78 HRB 38HRC
144 Ksi
----
ASTM A 563 grau D
159 a 352 HB
min. máx.
84 HRB 38HRC
150 Ksi
135 Ksi
ASTM A 563 grau DH
248 a 352 HB
24 a 38 HRC
175 Ksi
150 Ksi
SAE J 995 grau 2
----
máx. 32 HRC
----
90 Ksi
SAE J 995 gr. 5 (o1/4" até o1")
----
máx. 32 HRC
----
120 Ksi
SAE J 995. 5 (> o1" até o1.1/2")
----
máx. 32 HRC
----
105 Ksi
SAE J 995 gr. 8 (o1/4" até o5/8")
----
24 a 32 HRC
----
150 Ksi
SAE J 995 gr. 8 (o5/8"até o1")
----
26 a 34 HRC
----
150 Ksi
SAE J 995 gr. 8 (o1"até o1.1/2")
----
26 a 36 HRC
----
150 Ksi

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