CEMP-E
TI 809-26
1 March 2000
Table 4-2. AISC-Approved Structural Steels Not Prequalified under AWS D1.1 Table
Table
3.1
Grou
Structural Steel
p
(Not Prequalified)
Shapes and Plates
A529, grade 46
A283, grade D (plates)
NPQ-I
same as Table 4-1, Category I
Round and Rectangular Sections
A500, grade C (round)
Shapes and Plates
A242, all grades
A529, grades 50 and 55
A588, over 100 mm (4 in.)
A992, (W shapes only)
NPQ-
same as Table 4-1, Category II
II
Round and Rectangular Sections
A500, grade C (rectangular)
A618, grades Ib, II, and III
(round)
A847
f. Unlisted Steels.
(1) Steels not listed as approved by AISC must be evaluated for structural properties such as yield
strength, tensile strength, ductility and toughness. AISC design specifications assume adequate strength
and ductility. For seismic applications, an assumed minimum level of toughness is assumed inherent
with the steels listed in AISC Seismic Provisions. Other steels may warrant CVN testing or other mill
documentation of typical toughness properties.
(2) Steels not listed as prequalified by AWS D1.1 must be evaluated for their weldability.
Weldability may be evaluated using methods such as carbon equivalency, the performance of WPS
qualification testing, or physical testing such as the Tekken test, Lehigh Restraint Cracking Test, or the
Varestraint Test. The Tekken and Lehigh methods simulate restraint that may be present in the actual
joint. See Appendix B, Weldability of Steels, Stout and Doty, for further information on these tests.
4-5