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 TECHNICAL DATA
AISI C-1045 TURNED, GROUND & POLISHED ROUND
1045 is a medium carbon steel which responds to heat treating, forging, and induction hardening. This grade is used when a greater strength and hardness is required than can be obtained from lower carbon steel. 1045 is the most popular shafting grade in the medium carbon range. It is also an excellent grade for chrome plating. Note the diameter tolerances at the bottom of the page (approx. twice as close when compared to 1018 cold finished). Applications include gears, shafts, bolts, studs, machine parts, axles, forming dies, and tool shanks.
CHEMICAL ANALYSIS
Carbon Manganese Phosphorous Sulphur  
.43/.50 .60/.90 .04 Max. .05 Max
 
MECHANICAL PROPERTIES (The following values are average and should be considered as representative of the grade).
Tensile
Strength (PSI)

Yield
Strength (PSI)

Elongation
in 2"
Reduction
of Area
Brinell
Hardness
Rockwell
Hardness
82,000 45,000 16% 40% 162
84 B

AISI C-1141 TURNED, GROUND & POLISHED ROUND
1141 is a medium carbon steel with the addition of sulphur for improved machinability. It responds favorably to heat treating when greater strength and toughness is required. 1141 is not recommended for welding due to its higher carbon and sulphur content. Note the diameter tolerances at the bottom of the page (approx. twice as close when compared to 1018 cold finished). Applications include gears, shafts, bolts, studs, axles, and tie rods.
CHEMICAL ANALYSIS
Carbon Manganese Phosphorous Sulphur  
.37/.45 1.35/1.65 .04 Max. .08/.13
 
MECHANICAL PROPERTIES (The following values are average and should be considered as representative of the grade).
Tensile
Strength (PSI)

Yield
Strength (PSI)

Elongation
in 2"
Reduction
of Area
Brinell
Hardness
Rockwell
Hardness
94,000 51,500 15% 35% 190
91 B

12L14 FREE MACHINING BARS
12L14 is basically a resulphurized and rephosphorized screw machine stock to which lead has been added. These elements combine to produce an extraordinarily fast machining steel (machinability rating is 193%, based on grade 1212 as 100%. Average surface cutting speed is 325 feet per minute). 12L14 offers good ductility combined with finer surface quality. Due to high sulphur content, 12L14 is not considered as weldable as other low carbon steels. Applications include bushings, couplings, inserts, and hydraulic hose fittings.
CHEMICAL ANALYSIS
Carbon Manganese Phosphorous Sulphur  
.15 max .85/1.15 .04/.09 .26/.35  
MECHANICAL PROPERTIES (The following values are average and should be considered as representative of the grade).
Tensile
Strength (PSI)

Yield
Strength (PSI)

Elongation
in 2"
Reduction
of Area
Brinell
Hardness
Rockwell
Hardness
78,000 60,000 10% 35% 165 85 B
BMG Metals stocks a full range of 12L14 Rounds, Squares, and Hexes.
Stock Lengths: 12 ft or cut to length, depending on size.
 


Technical Data     |    Round     |    Square     |    Hexagon     |    Flat     |    C 1045/C 1141 TG&P Rounds     |    12L14     |    4140/42 Alloy     |    Stressproof®     |    e.t.d 150® Alloy Round Bar