S40C Round Bars, S40C Round bar manufacturer, S40C Rods Supplier, S40C Stockiest, S40C Dealers, S40C Distributors, S40C Whole sellers.
 
Grade Introduction:
JISG4051 S40C steel, under JISG4051 standard, we can regard S40C steel plate as high carbon steel.
S40C steel is one mainly of high carbon steel,S40C has high strength and good machinability, cold plastic deformation of medium, good weldability, after quenching and tempering after welding, heat treatment, no temper brittleness, but lower hardenability. Bear the load for a small section of the larger pieces of quenched large normalizing or stress smaller parts and the Ministry of strength less demanding on the heart surface, hardening the surface wear parts, such as crankshafts, spindles, drive shaft, connecting rod, etc.
 
Grade Application:
  • Oil and Gas Pipeline
  • Chemical Industry
  • Plumbing
  • Heating
  • Oil & Gas Industry
  • Water Supply Systems
  • Paper & Pulp Industry
  • Power Plant
  • Fabrication Industry
  • General purpose applications
  • Food Processing Industry
  • Structural Pipe
  • Heat Exchangers
Also used for other industrial purpose etc.
 
Equivalent grades:
S40C  
JIS G 4051
Comparision of steel grades
DIN
1C40
AISI
1040
UNI 7846
BS 970
UNE 36011
SAE J 403-AISI
 
Addition to other grades:
MS, EN1a, EN3b, EN8, EN8d, EN9, EN19, EN24, EN31, EN32b, EN36c, EN41b, EN43b, EN47, EN353, IS2062, 42Crmo4, HCHCR, D2, D3, H-11, H-13, CW-1, OHNS, M2, M35, M42, 2714, SKD-11, P20, P20+s, P20+Ni, SCM 420, ASTM Sa-36, ASTM SA-105, SAE 1018, SAE 1020, SAE 4140, SAE 8620, 16MNCR5, 20MNCR5, C20, C35, C40, C45, C50, C60, CK45, 20C8, 40C8, 45C8, 55C8, C55MN75, SAE52100, S355J2G3.
 
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Chemical composition:
The following table shows the chemical composition of S40C steel:
Element
C
Si
Mn
S
P
Cr
Ni
Cu
Content (%)
0.37-0.44
0.17-0.37
0.50-0.80
0.025
0.025
0.25
0.30
0.25
 
Mechanical Properties:
Grade
Tensile Strength (Mpa)
Yield Strength (Mpa)
Elongation in 100-150 mm(%)
Reduction in Area
Hardness
S40C
≥570
≥335
≥19
≥45
≤187HB
 
Hardness:
≤187HB
 
Heat treatment:
 
Hardening:
 
Tempering:
 
Physical Properties:
Physical Properties
Metric
Imperial
Density
7.85 g/cm3
0.284 lb/in3
 
Thermal Properties:
Coefficient of thermal expansion α – -> 1.32E-5 1/K at 20 °C
 
Forging Properties:
 
Stress Reliving:
 
Normalizing:
 
Annealing:
 
Density:
Density – 7.85 g/cm3 – 0.284 lb/in3 
 
Machine ability:
 
Welding:
 
Supply Cities:
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