Lowest carbon content for
superior cold forming and
weld-ability.
100
AISI 1020
Carbon content improves
machine-ability. Good forming
and welding.
100
AISI 1025
Higher carbon content further
improves machine-ability and
machined surface finish.
100
STRUCTURAL
STEELS
ASTM A283
General purpose, low-cost
structural quality plate.
Satisfactory machining and
welding characteristics.
101
ASTM A36
Higher mechanical properties
than A283. Silicon killed in
heavier thicknesses for internal
soundness. Good weld-ability
100
HSLA
STRUCTURAL STEELS
ASTM A572-50
High strength-low alloy steel, also
known as EX-TEN 50. 50 KSI minimum
yield.
124
ASTM A441
Offers 50 KSI minimum yield, plus
increased corrosion resistance (two
times more than carbon steel). AKA
TRI-TEN.
125
ASTM A242
Resistance to atmospheric corrosion
four times greater than carbon 8
steel. Excellent paint adhesion. AKA
COR-TEN A.
138
ASTM A588A
Similar to A242, but has modified
chemistry. Atmospheric corrosion is
four times better than carbon steel.
AKA COR-TEN B.
138
ALLOY STRUCTURAL STEELS
ASTM A514-B
Lowest in cost with two times the
corrosion resistance of carbon
steel. Also known as T-1 Type A &
NAX.
250
ASTM A514-H
Modification of A514-B chemistry to
obtain the minimum mechanical
properties in thicknesses over
1-1/4". AKA T-1 Type B.
270
ASTM A514-F
Higher alloy modification offering
100KSI minimum yield strength thru 2
1/2" thickness and four times
corrosion resistance of carbon
steel. Also known as T-1.
310
ASTM A514-Q
Higher alloy modification offering
100KSI minimum yield strength 320
thru 6" thickness'. Also known as
T-1 Type C.
320
PRESSURE VESSEL STEELS
ASTM A285-C
Popular, moderate strength steel for
stationary service vessels and
boilers. Excellent forming and
welding properties.
130
ASTM A515-70
Silicon killed carbon steel plate
designed for intermediate and high
temperature service. Coarse grained.
As rolled through 2".
135
ASTM A516-70
Carbon-manganese-silicon steel plate
for moderate and lower temperature
service in PV. Improved notch
toughness.
156
ASTM A517-F
Same as A514-F, but produced to PVQ
for endurance under thermal and
mechanical stress. Thickness' to
2.5".
280
ASTM A387-G11
Chromium-molybdenum alloy steel
plate intended primarily for boiler
and pressure vessels designed for
high temperature service.
Annealed
ASTM A387-G22 Norm. & Temp.
Chromium-molybdenum alloy steel
plate intended primarily for boiler
and pressure vessels designed for
high temperature service. Similar
to grade 11 except for higher levels
of chromium and molybdenum.
ABRASION RESISTANT STEELS
AR235
A high carbon and manganese abrasion
resistant steel. Approximately 235
BHN. Weldable with low hydrogen rod.
200
AR400
Heat treated, quenched and tempered
AR plate. Used where impact or
sliding abrasion materials require
tougher and harder steels to improve
equipment life. Approx. 400 BHN. AKA
XAR
245
AR500
Same as AR400, except hardness of
approx. 500 BHN
275
FORM. AR400
Same as AR400, except with improved
formability.
245
FORM. AR500
Same as AR500, except with improved
formability.
275
ALTALLOY
Similar to AR500 with the addition
of Nickel, Molybdenum and chromium
for added abrasion resistance and
toughness.
Steelco:
1887 South 700 West, Salt Lake
City, UT 84014 Phone: (800)
649-4248 or (801) 973-0911
FAX: (801) 972-6145
