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Mild Steel

HOT ROLLED
COLD ROLLED
_CIC8030
1117
TUBE / ORNAMENTAL
TUBE / STRUCTURAL
PIPE
TUBE DOM
SHEET A1011 HOT ROLLED
FLOORPLATE
SHEET COLD ROLLED
SHEET GALVANIZED
REBAR 60 FOOT
MILD STEEL

 A36 = Angle, Channel, Flat, Square, Round, Tee, Beam, Plate
1018 = Round, Square, Hex, Flat
1117 = Round, Square, Hex, Flat
12L14 = Round, Square, Hex
A513 = Tube (Ornamental, DOM)
A500 = Tube (Structural)
A519 = Tube (CDS, HFS)
A1008 = Sheet (Cold Rolled)
A1011 = Sheet (Hot Rolled)
A653 = Sheet (Galvanized)
A53 = Pipe
A786 = Floorplate
A615 = Rebar
HOT ROLLED
A36
Hot Rolled
  • Angle, Channel, Beam, Tee, Flat, Square, Round, Plate
  • Mild Steel  /  Low Carbon
  • Surface scale and imperfections
  • Dimensions are approximate
  • Corners are not sharp
  • Straightness is not exact
  • The most basic widely used metal
  • Least expensive of the carbon steels
  • Used for general construction
  • For both ornamental and structural use
  • Good Welding
  • Good Bending
Typical Chemical Analysis
Carbon (C) = .26 Max
Manganese (MN) = .60 to .90
Phosphorus (P) = .04 Max
Sulphur (S) = .05 Max
Silicone (SI) = .15 to .30
 
Typical Mechanical Property
Tensile (PSI) = 58000# - 80000#
Yield (PSI) = 36000# Min
Brinell Hardness = 137 to 150
 COLD ROLLED
1018
Cold Rolled
  • Round, Square, Flat, Hex
  • Mild Steel  /  Low Carbon
  • Used for general machine shop
  • Sharp corners
  • Surface is free of scale
  • Dimensionally accurate
  • Straight
  • Good welding
  • Fair cold bending
  • Severe bending may cause cracks
  • Can be carburized to increase surface hardness
Typical Chemical Analysis
Carbon (C) = .15 - .20
Manganese (MN) = .60 to .90
Phosphorus (P) = .04 Max
Sulphur (S) = .05 Max
 
Typical Mechanical Property
Tensile (PSI) = 85000
Yield (PSI) = 70000
Brinell Hardness = 167
Machinability * = 78%
* Machinability based on AISI-1212 as 100%
1117
1117
Cold Rolled
  • Round, Square, Flat, Hex
  • Mild Steel
  • Low Carbon   /  High Manganese
  • Machinable
  • Can be carburized to increase surface hardness
  • Sharp corners and dimensionally accurate
  • Straight
  • Poor welding due to Sulphur content
  • Can be cold formed
  • Surface is free of scale
Typical Chemical Analysis
Carbon (C) = .14 to .20
Manganese (MN) = 1.00 to 1.30
Phosphorus (P) = .04 Max
Sulphur (S) = .08 to .13
 
Typical Mechanical Property
Tensile (PSI) = 80000#
Yield (PSI) = 70000#
Brinell Hardness = 156
Machinability * = 91%
* Machinability based on AISI-1212 as 100%
_CIC8030
12L14
Cold Rolled 
  • Round, Square, Hex
  • Free Machining
  • Lead added
  • Trade Names = Ledloy and La-Lead
  • Fastest machining steel available
  • Sharp corners
  • Straight
  • Poor welding due to lead content
  • Fair cold bending
  • Surface is free of scale
  • Dimensionally accurate
Typical Chemical Analysis
Carbon (C) = .15 Max
Manganese (MN) = .85 to 1.15
Phosphorus (P) = .04 to .09
Sulphur (S) = .26 to .35
Lead (PB) = .15 to .35
 
Typical Mechanical Property
Tensile (PSI) = 78000#
Yield (PSI) = 70000#
Brinell Hardness = 163
Machinability * = 193%
* Machinability based on AISI-1212 as 100%
 TUBE / ORNAMENTAL 
A513
Tube - Ornamental
  • Tube in Square, Rectangular and Round
  • Mild Steel  /  Low Carbon
  • .134" Wall Thickness and thinner
  • TS = Tube Steel (ie: TS2" x 2" x .120")
  • ERW = Electric Resistance Welded
  • Weld bead may interfere with telescoping
  • DOM Round Tube meets specification A513
  • The most basic widely used metal
  • Least expensive of the carbon steels
  • Used for general construction
  • Good Welding
  • Good Bending
  • Surface usually Cold Rolled
  • Corners are not sharp
  • Straightness is not exact
Typical Chemical Analysis
Carbon (C) = .05 to .15
Manganese (MN) = .30 to .60
Phosphorus (P) = .04 Max
Sulphur (S) = .08 Max
Typical Mechanical Property
Tensile (PSI) = 45000# Typical
Yield (PSI) = 32000# Typical
Brinell Hardness = 179 Approximate
TUBE / STRUCTURAL 
A500
Tube - Structural
  • Tube in Square, Rectangular and Round
  • Bare Pipe / No Hydro-Test
  • Mild Steel  /  Low Carbon
  • Designated "Structural"
  • Walls 3/16" and thicker
  • ERW = Electric Resistance Welded
  • TS = Tube Steel (ie: TS3" x 3" x .250")
  • HSS = Hollow Structural Steel
  • Weld bead may interfere with telescoping
  • The most basic widely used metal
  • Least expensive of the carbon steels
  • Used for general construction
  • Good Welding
  • Good Bending
  • Surface has scale and imperfections
  • Dimensions are approximate
  • Corners are not sharp
  • Straightness is not exact
Typical Chemical Analysis
Carbon (C) = .26 Max
Manganese (MN) = 1.40 Max
Phosphorus (P) = .04 Max
Sulphur (S) = .05 Max
Typical Mechanical Property
Tensile (PSI) = 58000# Min
Yield (PSI) = 46000# Min
Brinell Hardness = 179 Approx
TUBE DOM  
A519
Round Tube / CDS & HFS
  • Tube / Round
  • Mild Steel  /  Low Carbon
  • CDS = Cold Drawn Seamless
  • HFS = Hot Finish Seamless
  • Hole may not be in center of tube
  • Hole may be out of round
  • Wall may be thinner/thicker on different sides
  • Max Wall Tolerance = +/- 12-1/2% of wall
  • Max OD= +/-.065" (+/-1% ON 11"OD & >)
  • Max Straightness Tolerance = .065" Bow in any 3'
  • For precision tolerance see Tube / DOM
  • Good Welding
  • Good Bending
Typical Chemical Analysis
Carbon (C) = .15 to .28
Manganese (MN) = .60 to .90
Phosphorus (P) = .04 Max
Sulphur (S) = .05 Max
Typical Mechanical Property
Tensile (PSI) = 60000# Min
Yield (PSI) = 35000# Min
Brinell Hardness = 122 t0 174
SHEET COLD ROLLED 
A1008
Sheet - Cold Rolled
  • Sheet
  • Vehicle Sheet Metal, Metal Furniture, File Cabinets
  • Mild Steel  /  Low Carbon
  • Superior Finish
  • Good Welding
  • Good Bending
Typical Chemical Analysis
Carbon (C) = .02 to .15
Manganese (MN) = .60 Max
Phosphorus (P) = .03 Max
Sulphur (S) = .035 Max
Typical Mechanical Property
Tensile (PSI) = 38000# Min
Yield (PSI) = 20000# Min
Brinell Hardness = 80 t0 90
 SHEET A1011 HOT ROLLED 
A1011
Sheet - Hot Rolled
  • Sheet / .135" and thinner
  • The most basic widely used metal
  • Least expensive of the carbon steels
  • Used for general construction
  • For both ornamental and structural use
  • Good Welding
  • Good Bending
  • Surface has scale and imperfections
  • Dimensions are approximate
  • Corners are not sharp
  • Straightness is not exact
Typical Chemical Analysis
Carbon (C) = .15 Max
Manganese (MN) = .30 to .60
Phosphorus (P) = .04 Max
Sulphur (S) = .05 Max
Typical Mechanical Property
Tensile (PSI) = 55000# Typical
Yield (PSI) = 30000# Typical
Brinell Hardness = 80 t0 90
 SHEET GALVANIZED 
A653
Sheet - Galvanized
  • Sheet .135" and thinner
  • Mild Steel  /  Low Carbon
  • Galvanized Coating resists corrosion
  • Air Conditioning and Heating and Ventilation Ducts
  • Good Bending
  • Welding can cause dangerous fumes
  • Spangle = surface snowflake-like pattern
  • Different manufacturers offer different Spangle
Typical Chemical Analysis
Carbon (C) = .15 Max
Manganese (MN) = .60 Max
Phosphorus (P) = .035 Max
Sulphur (S) = .04 Max
Typical Mechanical Property
Tensile (PSI) = 42000# Min
Yield (PSI) = 35000# Min
Brinell Hardness = 111
 PIPE 
A53
Pipe
  • Pipe
  • For conveyance of steam, water, oil, gas and air.
  • Can be used structurally
  • Size designation usually refers to inside dimension
  • Wall thickness is usually referred to as a "Schedule"
  • Usually coated with Lacquer for corrosion resistance
  • Also available in "Bare" as A500
Typical Chemical Analysis
Carbon (C) = .25 to .30
Manganese (MN) = .95 to 1.20
Phosphorus (P) = .05 Max
Sulphur (S) = .06 Max
Typical Mechanical Property
Tensile (PSI) = 48000# to 60000#
Yield (PSI) = 30000# to 35000#
Brinell Hardness = N/A
 FLOORPLATE 
A786
Floorplate
  • Deformed surface aids foot traffic traction
  • Mild Steel  /  Low Carbon
Typical Chemical Analysis
Carbon (C) = .10 to .25
Manganese (MN) = .30 to .70
Phosphorus (P) = .05 Max
Sulphur (S) = .05 Max
Typical Mechanical Property
Tensile (PSI) = 60000#
Yield (PSI) = 33000#
Brinell Hardness = N/A
 REBAR 60 FOOT 
A615 Grade 60
Rebar
  • Reinforcing Bar
  • Deformed Bar
  • Reinforcement in concrete
  • Surface has scale and imperfections
  • CRSI = Concrete Reinforcing Steel Institute
  • CRSI states "rust on rebar is acceptable as long as the rust has not reduced the diameter"
  • Cracking of #4 to #6 during field bending is common
  • Bending of #4 to #6 should be done on a 2.5" pin
  • All rebar is weldable
  • However A706 has better weldability and is sometimes specified
  • The English numbering system = eights of an inch
  • Thus #4 = 4/8" or 1/2"
  • The deformations adds to size diameter
Typical Chemical Analysis
Carbon (C) = No Specification
Phosphorus (P) = .06 Max
Sulphur (S) = No Specification
Typical Mechanical Property
Tensile (PSI) = 90000# Min
Yield (PSI) = 60000# Min
Brinell Hardness = N/A