STRUCTURAL STEEL GRADES STRENGTH

Centered Steel‑Grades Table
Grade Yield Strength Ultimate tensile
strength		 Elongation
min for 2"		 Notes
STRUCTURAL STEEL CSA G40.21
44/300W 44,000 PSI
(304 MPA) MIN		 65,000‑85,000 PSI
(448‑586 MPA)		 23 %
50/350W 50,000 PSI
(345 MPA) MIN		 65,000‑90,000 PSI
(448‑621 MPA)		 22 %
A36 36,300 PSI
(250 MPA) MIN.		 58,000‑79,800 PSI
(400‑500 MPA)		 23 %
4140 105,000 PSI
(724 MPA) MIN		 125,000 PSI
(852 MPA) MIN		 16 % Heat‑treated to ASTM A193 B7
ALL THREADED RODS
ASTM A307 GR. A — 60,000 PSI (414 MPA) MIN. 18 %
ASTM A193 B7 105,000 PSI (724 MPA) MIN 125,000 PSI (852 MPA) MIN 16 %
ASTM F593
‑GRADE 304 / 316		 Dia ¼‑⅝: 65,000 PSI (448 MPA) MIN.
Dia ¾‑1 ½: 45,000 PSI (310 MPA) MIN. 		Dia ¼‑⅝: 100‑150 k PSI (689‑1035 MPA)
Dia ¾‑1 ½: 85‑140 k PSI (586‑965 MPA) 		— Supplied CW1/CW2 unless specified.
Same strength for SS304 & SS316
ANCHOR RODS
F1554 GR. 36 36,000 PSI (248 MPA) MIN. 58,000‑80,000 PSI (400‑552 MPA) 23 %
F1554 GR. 55 55,000 PSI (379 MPA) MIN. 75,000‑95,000 PSI (517‑655 MPA) 21 % Popular weldable alt: GR. 55‑S1
F1554 GR. 105 105,000 PSI (724 MPA) MIN. 125,000‑150,000 PSI (861‑1034 MPA) 15 %
STRUCTURAL BOLTS ASTM F3125
GRADE A325/F1852 92,000 PSI (635 MPA) MIN. 120,000 PSI (828 MPA) MIN. 14 % Type 1 & 3 (weathering) same strength.
GRADE A490/F2280 130,000 PSI (896 MPA) MIN. 150,000 PSI (1034 MPA) MIN 14 % Type 1 & 3 (weathering) same strength.
SAE J429
Grade 2 Dia ¼‑¾: 57,000 PSI (393 MPA) MIN.
Dia ¾‑1 ½: 36,000 PSI (248 MPA) MIN 		Dia ¼‑¾: 74,000 PSI (510 MPA) MIN.
Dia ¾‑1 ½: 60,000 PSI (414 MPA) MIN 		18 %
Grade 5 Dia ¼‑1: 92,000 PSI (635 MPA) MIN.
Dia 1 ⅛‑2: 81,000 PSI (558 MPA) MIN 		Dia ¼‑1: 120,000 PSI (830 MPA) MIN.
Dia 1 ⅛‑2: 105,000 PSI (724 MPA) MIN 		14 %
Grade 8 120,000 PSI (830 MPA) MIN. 150,000 PSI (1034 MPA) MIN. 12 %