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E-4340-H
Standard ASTM A540/540M-2015 Alloy-steel bolting for special applications
Standard ASME SA-540/SA540M-1993 Specification for alloy steel bolting materials for special applications


Chemical Composition(%)


Standard Material Designation Chemical Composition (%)
ASTM A540/540M-2015
Alloy-steel bolting for special applications 		Grade B23
(E-4340-H)
 
Min
Max
ASME SA-540/SA540M-1993
Specification for alloy steel bolting materials for special applications 		SA540 GradeB23 Class1
(E-4340-H)
(SA540M-B23 CL1)
 
Min
Max
ASME SA-540/SA540M-1993
Specification for alloy steel bolting materials for special applications 		SA540 GradeB23 Class2
(E-4340-H)
(SA540M-B23 CL2)
 
Min
Max
ASME SA-540/SA540M-1993
Specification for alloy steel bolting materials for special applications 		SA540 GradeB23 Class3
(E-4340-H)
(SA540M-B23 CL3)
 
Min
Max
ASME SA-540/SA540M-1993
Specification for alloy steel bolting materials for special applications 		SA540 GradeB23 Class4
(E-4340-H)
(SA540M-B23 CL4)
 
Min
Max
ASME SA-540/SA540M-1993
Specification for alloy steel bolting materials for special applications 		SA540M GradeB23 Class5
(E-4340-H)
(SA540M-B23 CL5)
 
Min
Max
For Reference Only
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