September 27, 2023 | Tags: T45Cr5Si3,
T45Cr5Si3 Stock Stock

T45Cr5Si3 is alloy tool steel acc. to IS 1570-6-96

What is T45Cr5Si3 grade steel?

T45Cr5Si3 is Alloyed Cold Work Tool Steels acc. to IS 1570-6-96, High strength, good toughness, good hardenability, good stability against overheating, Used in the manufacture of medium-speed, heavy-duty, high-strength, high-toughness parts and high-strength components. It is mostly used to manufacture various important parts with high load and high speed, such as gears, shafts, clutches, sprockets, grinding wheel shafts, bushings, bolts, nuts, etc. It is also used to manufacture parts with wear resistance and low working temperature, variable load Welded components such as high-pressure blower blades, valve plates, and non-corrosive pipes. welding and riveting structural parts working under vibration load, such as high-pressure blower blades, valve plates and high-speed and high-load shafts, gears, sprockets, clutches, bushings, bolts, nuts, etc.

Chemical Composition

GradeChemical composition WT %
T45Cr5Si30.4-0.500.8-1.100.55-0.75max 0.035max 0.0351.20-1.60

Mechanical Properties

Tensile strength σb (MPa): ≥1620(165)

Yield strength σs (MPa): ≥1275(130)

Elongation δ5 (%): ≥9

Reduction of area ψ (%): ≥40

Impact energy Akv (J): ≥31

Impact toughness value αkv (J/cm2): ≥39(4)

Sample size: sample

Heat Treatment


950℃ for the first time,

890℃ for the second time, oil cooling; tempering 230℃, air cooling, oil cooling;

880 ° C isothermal quenching at 280 ~ 310 ° C.

T45Cr5Si3 Special steels stock list

Steel Grade Shape Dimension(mm) Quantity(PCs) Weight(Kg) Condition

Our provides:

Round Bars

Hot rolled coils & plates

Cold rolled coils and sheets


Flat bars

Hollow bars

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