S45CBD

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JFS Steel's S45CBD and Steel Machining Service

Ju Feng Special Steel Co., Ltd. is an industrial steel materials, steel parts and steel-related services supplier from Taiwan. Along with steel bars, steel plates and steel tubes supply, steel cutting, drilling, machining and heat treatment services are also provided.

JFS Steel has been offering customers S45CBD Medium Carbon Steel and precision steel machining services since 2006. With both highly skilled technology and 47 years experience, JFS Steel always makes sure to meet each customer's demand.


S45CBD

Medium Carbon Steel

The surface is smooth after cold drawing, and the main difference with S45C is that the surface can reach rough turning of grade.
The post-process can be directly used for milling or grinding, which greatly reduces the processing time. Its characteristics and application are the same as S45C. .

Applications requiring strength and impact resistance of the component, because of its high carbon content, therefore, have a higher tensile strength, ductility and wear resistance, but is not suitable for welding or forming.
This steel grade can be supplied in many standard shapes, including round, square, hexagonal, and plate. It generally applicative used in nuts and bolts, axles, rollers, springs, wires, wheel frames, rods, engine parts, stamping dies, hammers, lock washers/lock pin gaskets, turbine rotors, railway tracks, cylinder sleeves, hand tools, screws, railway wheels, gears, garden shears, etc.

A medium carbon, medium tensile steel supplied as forged or normalized

Purpose

S45C is widely used in mechanical parts and structural steel.

International Comparison of Meterials

EU
EN
INTER  ISOUSA 
AISI
JAPAN
JIS
GERMANY
DIN
CHINA
GB
FRANCE
AFNOR
ITALY
UNI
C45E
C45
C451045S45CCK45
C45
Cf45
45XC45
XC48H1
AF65C45
C45
C45
1C45
C45

SPAIN
UNE
Sweden
SS
Finland
SFS
Poland
PN
Czechia
CSN
Austria
ONORM
Russia
GOST
England
BS
C45K1672
1650
C454512050C45SW45

080M46
CFS8
070M46
50HS

**This comparison table is for reference only. The standards and grades of various countries have slightly different chemical compositions. Please refer to the database for details.**

Chemical Composition(JIS G4051)

碳(C)%矽(Si)%錳(Mn)%磷(P)%硫(S)%鉻(Cr)%鎳(Ni)%銅(Cu)%
0.42-0.480.15-0.350.6-0.90≦0.030≦0.0350≦0.20≦0.20≦0.3

Conditions of heat treatment

  • Annealing: 880℃ Furnace Cooling
  • Normalization: 880~870℃ Air Cooling
  • Hardening: 820~870℃ Water Cooling
  • Tempering: 550~650℃ Rapid Cooling

Mechanical properties

(1) Material
Tensile strength (kgf/mm²): ≧58
Yield strength (kgf/mm²): ≧35
Elongation (%): ≧20
Cross section reduction rate (%): ≧45
Hardness (Hb): 167~229

(2) After heat treatment
Tensile strength (kgf/mm²): ≧70
Yield strength (kgf/mm²): ≧50
Elongation (%): ≧17
Cross section reduction rate (%): ≧45
Hardness (Hb): 201~269

Size Range

ShapeSize(mm)
Round Bar67891011124/8"1314155/8"
161718196/8"20227/8"24251"26
1-1/8"28301-2/8"32343536381-4/8"4042
44454648502"556065707580
8590951004"       
Hexagonal83/8"3-5/8"4/8"14155/8"1617181921
22232426272829303233.33536
384146502"555765    
Square83/8"10124/8"5/8"156/8"207/8"1"1-1/8"
1-2/8"1-4/8"1-6/8"502"       
Steel Application
  • Gear - Ju Feng offers the steel material that can be used for gears.
    Gear

    There are many types of gear, such as: spur gear, sprocket, pulley, helical gear, internal gear, rack, straight bevel gear, spiral bevel gear, zero bevel gear, screw gear, worm gear, hypoid gear…etc. A gear should be made by the material which has a high flexural fatigue strength and contact fatigue strength, sufficient hardness, and wear resistance, and toughness.The materials of gear we recommend are as below.


  • Machine Tool Spindle - Ju Feng offers the steel material that can be used for machine tool spindle.
    Machine Tool Spindle

    A machine may have several spindles. Varieties of spindles include grinding spindle, electric spindle, low-speed spindle, high speed spindle, engraving spindle, milling spindle, turning spindle and more. The spindle should be made by the material with the highest, stability, rigidity and efficiency.The materials of spindle we recommend are as below.


  • Drive Shafts - Ju Feng offers the steel material that can be used for drive shaft.
    Drive Shafts

    To allow for variations in the alignment and distance between the driving and driven components, drive shafts frequently incorporate one or more universal joints, jaw couplings. Therefore, they must use the materials which are strong enough to bear the stress, whilst avoiding too much additional weight as that would in turn increase their inertia.The materials of drive shaft we recommend are as below.


  • Cutting Tools - Ju Feng offers the steel material that can be used for cutting tools.
    Cutting Tools

    The types of cutting tools are diverse, such as: milling cutter, drill bit, circular saw blade, reamer, PCD (Polycrystalline Diamond) cutting tools, annular cutter, lathe cutting tool, punch cutting tool, etc. The material quality of woodworking cutting tool usually affects the surface performance of machining, efficiency, tool life, and other factors. Therefore, the material of woodworking cutting tool should have the high hardness, wear resistance, sufficient strength, toughness, heat resistance, etc.The materials of cutting tools we recommend are as below.


  • Machine Parts - Ju Feng offers the steel material that can be used for machining parts.
    Machine Parts

    There are three kinds of material type which are used for machining parts, metal material, non-metallic material, and composite. Also, there are two kinds of metal material, ferrous metal and un-ferrous metal. Ferrous metal material which includes steel, cast steel and cast iron has good mechanical properties (such as strength, ductility, toughness, etc.). The ferrous metal material is obtained easily and its price is cheap. Non-ferrous metal material which has the low density has the advantages of thermal conductivity and electric conductivity.The materials of machining parts we recommend are as below.