SAE 1055 | AISI 1055 Carbon Steel

SAE 1055 is medium carbon steel that belongs to carbon structural steel as per ASTM A29.

SAE 1055 steel can be heat treated to obtain good strength, hardness and wear resistance, but its plasticity, toughness and weldability are poor.

SAE1055 steel has a wide range of applications, mainly used to manufacture parts that require high strength, wear resistance and elasticity, such as gears, rims, flat springs, crankshafts, automotive parts, knives and blades, etc.

AISI 1055 carbon steel bar

Chemical Composition For SAE 1055
National
Standard		 Grade C Si Mn Cr Mo P S
EN10083 C55 0.52-0.6 ≤0.4 0.6-0.9 ≤0.4 ≤0.1 ≤0.035 ≤0.035
ASTM A29 1055 0.5-0.6 0.07-0.6 0.6-0.9 – – ≤0.04 ≤0.05
JIS G4051 S55C 0.52-0.58 0.15-0.35 0.6-0.9 ≤0.2 – ≤0.03 ≤0.035
GB 699 55  0.52-0.6  0.17-0.37  0.5-0.8  ≤0.25  –  ≤0.035  ≤0.035

SAE 1055 Steel Heat Treatment

  • Normalizing: 810 – 860°C, air cooling
  • Annealing:770 – 810°C, furnace cooling,hardness below 217HBW
  • Quenching:800-820°C,water quenching with hardness 60-65HRC
  • Tempering:550-580°C,Surface hardness 28-32HRC

SAE 1055 Steel Mechanical Property with Normalized Condition

TemperatureTensile,MpaYield,Mpa Elongation,% Reduction,%
820°C≥645≥380≥13≥35

SAE 1055 steel Quenching Critical Diameter

static oil20°C
Water		40°C
Water		20°C
5% Sodium chloride solution
Critical Diameter,mm10201621.5

Quality Certification fOR SAE 1055 Steel

A material test report(Inspection Certificate EN 10204 3.1) will be provided, documenting the following:
1.Chemical analysis
2.Mechanical properties
3.Surface hardness
4.Non Metallic Inclusion
5.Heat Treatment Process
6.Grain size
7.Forging ratio
8.Ultrasonic test report

Supply Size & Condition For SAE 1055 Steel

  • Round Bars:  Dia.80 – 1,000mm as Forged
  • Flat / Square Bars:  Thickness Max.800mm
  • Shafts, Rollers, Blocks:  Customized or According to Drawing
  • Rolled Round Bars:  Dia.14 – 250mm with UT Assurance

Heat treatment:Quenched and Tempered (+QT), Normalizing (+N), Annealing (+A)
Surface finish:Black / Rough turned / Peeled

SAE 1055/AISI 1055 Carbon Steel manufacturers and suppliers,delivered in round rods,square/flat bars,rollers,shafts,blocks and forging pieces.

RFQ 1055 Steel