|
Grade
Identification
Marking
|
Specification
|
Material
|
Nominal Size In.
|
Proof
Load
Stress
ksi
|
Tensile
Strength
Min
ksi
|
Hardness
Rockwell
|
|
Min
|
Max
|
|
|
ASTM
A354 Grade BC
|
Medium
Carbon Alloy Steel. Quenched and Tempered
|
1/4 thru 2 1/2
over 2 1/2
thru 4
|
105
95
|
125
115
|
C26
C22
|
C36
C33
|
|
|
SAE
J429
Grade 8
|
Medium
Carbon Alloy Steel, Quenched and Tempered
|
1/4
thru 1 1/2
|
120
|
150
|
C33
|
C39
|
|
ASTM
A354 Grade BD
|
1/4 thru 2 1/2
over 2 1/2
thru 4
|
120
105
|
150
140
|
C33
C31
|
C39
C39
|
|
|
SAE
J429 Grade 8.2
|
Low
Carbon Martensite Steel, Quenched and Tempered
|
1/4
thru 1
|
120
|
150
|
C33
|
C39
|
|
|
ASTM
A490 Type 1
|
Medium
Carbon Alloy Steel, Quenched and Tempered
|
1/2
thru
1 1/2
|
120
|
150
min
170 max
|
C33
|
C38
|
|
ASTM
A490 Type 2
|
Low
Carbon Martensite Steel, Quenched and Tempered
|
1/2
thru 1
|
120
|
150
min
170 max
|
C33
|
C38
|
|
|
ASTM
A490 Type 3
|
Atmospheric
Corrosion Resistant Steel, Quenched and Tempered
|
1/2
thru 1 1/2
|
120
|
150
min
170 max
|
C33
|
C38
|
