C35 CARBON STEEL | DIN 1.0501 | AISI 1035 | S35C

C35 steel is a medium carbon, medium tensile steel supplied as-forged or normalized condition. This steel shows excellent forgeability, reasonable strength, toughness and wear resistance. C35 is easily welded with the correct procedure. Due to the carbon content preheating and postheating are required. It has good Machinability after full annealing. Wide range of mechanical properties can be attained by quenching and tempering, as quenched hardness should be approximately 45 HRC

International Standard

Equivalent grades of   steel   C35 (1.0501)
Warning! Only for reference

EU
EN		 USA
–		 Germany
DIN,WNr		 Japan
JIS		 France
AFNOR		 England
BS		 Italy
UNI		 Spain
UNE		 China
GB		 Sweden
SS		 Poland
PN		 Czechia
CSN		 Austria
ONORM		 Russia
GOST		 Inter
ISO
C35
1035
Gr.1035
1.0501
C35
S35C
AF55C35
C35
070M36
40HS
1C35
C35
C35C
C35k
35
1550
35
12040
C35
35
40
C35
C35E4

Available Types & Range

C 35 steel Supply Form & Size

Form of Supply Size(mm) Length(mm)
Round bar Φ20-Φ650 Standard or As your request
Square bar 25 x 25 – 450 x 450 Standard or As your request
Plate/Sheet Thickness :6 – 300
Width:80-1,250		 Standard or As your request
Flat bar/Blcoks Thickness :10 – 300
Width:120-25 – 500		 Standard or As your request

Available Types & Range

Chemical Composition & Technical Specification – C 35

Grade C Si Mn P S
C35/1.0501 0.32-0.39 ≤ 0.4 0.50-0.80 ≤ 0.045 ≤ 0.045

C35 Steel Mechanical Property

Diameter d mm ≤ 16 16-40 40-100
Thickness t mm < 8 8-20 20-60
Yield Strength Mpa ≥430 ≥380 ≥320
Tensile Strength Mpa 630-780 600-750 550-700
Elongation, % ≥17 ≥19 ≥20
Reduction of area ,% ≥40 ≥45 ≥50

Surface Finish&Tolerance

Surface Finish Black-Forged Black-Rolled Turned Grinding Polished Peeled Cold Drawn
Tolerance (0，+5mm) (0，+1mm) (0，+3mm) Best h9 Best h11 Best H11 Best H11

C35 steel Forging

Forging temperature:950-1200℃,air cooling after forging.

 C35 Steel Heat Treatment

  • Annealing

Full annealing  is carried out from 840-890ºC, followed by furnace cooling at 28ºC per hour, to 650ºC soaking and air cooling.

  • Normalizing

The normalizing temperature range for this grade is typically 860-900ºC,followed by cooling in still air.

  • Hardening

Hardening of C35 steel is carried out from an austenitizing temperature of 830-860ºC,followed by oil or water quenching.

  • Tempering

Tempering after normal hardening and oil or water quenching is carried out at 550-680ºC to give the required mechanical properties as determined by practical experience.

C35 Steel Application

C35 steel is one of the most widely used for machinery parts,and used for forged parts where the strength and toughness of the material are appropriate.The following are the major applications of C35 carbon steel:

  • Levers
  • Bolts
  • Nuts
  • Studs
  • Gears
  • Forged shafts
  • Axles