CEMP-E
TI 809-26
1 March 2000
CHAPTER 4
STRUCTURAL STEELS
1. AISC AND AWS LISTED STRUCTURAL STEELS.
a. AISC Approved Steels. For building-type structures, the AISC lists approved steels in Section A3.1
of the Specification for Structural Steel Buildings. Additional steels are listed in the AISC Seismic
Provisions for Structural Steel Buildings because of a more recent publication date. New structural steel
specifications have been developed and approved since publication, such as ASTM A992, and should
also be considered for application in structures. Structural steels currently accepted by AISC in the LRFD
Specification, or pending acceptance as noted, are as follows:
Shapes and Plates
A36
A242
A2831
A514
A529
A572
A588
A709
A852
A9132
A9924 (wide flange shapes only)
Rounds and Rectangular Sections
A53
A500
A501
A618
A8473
Sheet and Strip
A570
A606
A607
1
- added in AISC Seismic Provisions (1997)
2
-added in AISC LRFD Supplement (1998)
3
- added in AISC Hollow Structural Sections (1997)
4
- approved for next specification
b. AWS Prequalified Steels. AWS D1.1 lists prequalified steels in Table 3.1, and other approved
steels in Annex M. Prequalified steels have been determined to be generally weldable when using the
AWS D1.1 Code. For some steel specifications, only certain strength levels or grades are considered
prequalified. This situation may be because certain grades have compositional levels outside the range
considered readily weldable, because certain strength levels are less weldable, or because certain steels
or grades recently came into production and inadequate information was known about their weldability at
4-1