SM45:

Description

SM45 steel is a high quality carbon plastic mold steel, compared with the quality of 45 carbon steel structure, the steel in the sulfur, phosphorus content is low, steel purity is good.

When produce small plastic mold, with quenching and tempering can be higher hardness and better toughness. The advantages of the steel is cheap, good machinability, high hardness after quenching, quenching and tempering has good toughness and a certain degree of wear resistance.

Chemical Composition of SM45 Steel Material
C(%)Si(%)Mn(%)P(%)S(%)
0.42~0.480.17~0.370.50~0.800.030.03

Mechanical Properties of SM45 steel:

Rp0.2 (MPa)Rm (MPa)Impact
KV (J)
Elongation
A (%)
A Z /(%)DeliveryHardness HB
163 (≥)286 (≥)321314Solution & Aging, Ann, Ausaging, Q+T422

Physical properties of SM45 steel:

ropertyDensity
kg/dm3
Temperature T
°C/F
Specific heat
J/kgK
Thermal conductivity
W/mK
343(≥)964(≥)312441
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0)N/mm2
Creep rupture strength
(10000h)
(Rp1,0)N/mm2
  Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
394772821Solution and Aging,Annealing,Ausaging,Q+T,etc243

SM45 Steel Application

SM45 steel flat bar is widely used for all industrial applications requiring more wear resistance and strength. Typical applications as Gears, Pins, Rams, Shafts, Rolls, Sockets Axles, Spindles,  Worms Bolts, Ratchets, Light gears, Studs, Crankshafts, Guide rods, Connecting rods, Torsion bars, Hydraulic clamps.

SM45 Range of products:

Product typeProductsDimensionProcessesDeliver Status
Plates/SheetsPlates/Sheets0.08-200mm(T)*W*LForging,hot rolling and cold rollingAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Steel BarRound Bar,Flat Bar,Square BarΦ8-1200mm*LForging,hot rolling and cold rolling,CastBlack,Rough Turning,Shot Blasting,
Coil/StripSteel Coil/Steel Strip0.03-16.0x1200mmCold-Rolled&Hot-RolledAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Pipes/TubesSeamless Pipes/Tubes,Welded Pipes/TubesOD:6-219mm x WT:0.5-20.0mmHot extrusion,Cold Drawn,WeldedAnnealed,Solution and Aging,Q+T,ACID-WASHED

Description

Equivalent Grade

Chemical Composition

Mechanical Properties

Physical Properties

Heat Treatment Specification

Shapes and dimensions

Delivery Condition

Applications