ASTM A1018 HSLAS Grade 55
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ASTM A1018 is a standard specification for hot-rolled, heavy-thickness coils of carbon steel, commercial steel, drawing steel, structural steel, high-strength low-alloy steel and ultra-high strength steel. The specification covers steel coils in thicknesses of 0.230 in. to 1.000 in. A1018 High-Strength Low-Alloy Steel (HSLAS) Grade 55 has a specified minimum yield strength of 55 ksi.
Grade | Product type | Thickness (inmm) |
Width (inmm) |
---|---|---|---|
HSLAS Grade 55 Class 1 | Coils | 0.230 - 0.6255.84 - 15.9 | 60 - 981500 - 2500 |
Width: Inquire for widths <60 in. down to 39.4 in.
Tensile testing is performed in the transverse direction.
Grade | Thickness (inmm) |
Yield strength (min ksi) |
Tensile strength (min ksi) |
Elongation in 2" (min %) |
Elongation in 8" (min %) |
---|---|---|---|---|---|
HSLAS Grade 55 Class 1 | 0.230 - 0.6255.84 - 15.9 | 55 | 70 | 18 | 15 |
(Heat analysis, wt. %.)
Grade | C (max %) |
Mn (max %) |
P (max %) |
S (max %) |
Ti 1) (min %) |
V 1) (min %) |
Cb 1) (min %) |
Ni 2) (max %) |
Mo 2) (max %) |
Cu 2) (max %) |
Cr 2) (max %) |
---|---|---|---|---|---|---|---|---|---|---|---|
HSLAS Grade 55 Class 1 | 0.25 | 1.50 | 0.04 | 0.04 | 0.005 | 0.005 | 0.005 | 0.40 | 0.12 | 0.40 | 0.30 |
1) One or more of Cb, V, and Ti may be added. When added the min for that element applies, if not added then there is no minimum requirement.
2) Production only at “Limits B” for Cu, Ni, Cr, Mo.