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C35 Description

The C35 has reliable mechanical property, good formability and excellent cutability performance, which is widely used in various industries.Such as architecture, bridge construction, marine craft, heavy machine and other structure parts.
C35 is a structural grade steel. offers good tensile and yiele strength,also used in bolt,nut and lever ect.

C35 STEEL FORGING

Initial Forging Temperature：1200℃
Final Forging Temperature：800℃
Forging Ratio：above 4:1
Post-Forging Treatment:C35 steel should be slowly cooling after forged.

C35 STEEL HEAT TREATMENT

Critical Temperature for Heat Treatment of C35 Steel
Ac1:724℃
Ac3:802℃
Ar1:680℃
Ar3:774℃

Temperature Selection for Conventional Heat treatment for C35 Steel

Annealing:850 – 880°C,Cooling in furnace,hardness below 187 HBW
Normalizing:860-900°C,Cooling in air,hardness 137-197 HBW

C35 steel is a cost-effective medium-carbon structural steel that offers an excellent balance between strength, ductility, and machinability. It is ideal for mass-produced general-purpose machine components. Its weldability is better than C45, but preheating and post-weld heat treatment are still recommended for critical applications.

Chemical Analysis

% C Cr Ni Mo Cu P Mn Si S V Fe
min 0.32 0.5
max 0.39 0.4 0.4 0.045 0.8 0.4 0.045 Bal

Mechanical & Physical Properties

0.2% Yield Strength Tensile Strength Elongation Modulus of Elasticity Density Melting Range
MPa MPa % GPa g/cm³ °C
250-305 410-580 20-23 210 7.8 1370-1400
  • COMMON TRADE NAMES
  • 1.0501
  • C35K
  • ASTM 1035
  • S35C
  • 35#
  • Сталь35
  • C35

Specification

  • Plate:EN 10083-2
  • Strip:EN 10132-2
  • Hot-rolled bars:ASTM A29
  • Cold-drawn rod:ASTM 108
  • Forging
  • Pipe-Seamless:EN 10297-1
  • Pipe-Welded:EN 10219-2
  • Flange:
  • Fitting:

APPLICATION

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

Welding consumables

  • MIG/MAG:ER70S-6
  • SMAW：E7015
  • FCAW:ER7015
  • FCAW-G:E71T1-GC
  • SAW：EM12K
  • Flux: F7A2

What Can We Offering

Available Product Range (in mm)

    • Hot-Rolled Steel Plates
    • Thickness: Ranging from 3mm to 120mm
    • Width: 600mm-2500mmStandard Width: 1000, 1219, 1500, and 2000mm
    • Length:1000mm-25000mm
    • Cut to Length: 2000 2440, 3000, 3048 and 6000mm
    • Surface Types: Includes NO.1, NO.4, 8K, Brush, and Checkered
    • Cold-Rolled Steel Sheet/Plate
    • Thickness: Ranging from 0.2mm to 4mm
    • Width: 600mm-2000mm
    • Standard Width: 1000, 1219, 1500, and 2000mm
    • Length:1000mm-6000mm
    • Cut to Length: 2000 2440, 3000, 3048 and 6000mm
    • Form: Sheet Or Coil

Available Round Bar Dimensions (in mm)

  • Diameter
  • General Range: 3mm to 800mm
  • Common Range: 25mm to 152mm
  • Specialized: Up to 300mm or more for certain applications
  • Length
  • Standard: 1 to 6 meters
  • Custom: Available in custom cut lengths
  • Other dimensions
  • Forms: Available in various forms including round, square, hex, flat, billet, and ingot
  • Finishes: Common finishes include bright, polished, and black
  • Tolerance:±0.05 mm (cold-drawn), ±0.4 mm (hot-rolled)

Type Of Flangs (Size/Dimensions)

  • Welding Neck, Reducer Flange,Socket Weld Flange
  • Dimensions:½” – 48″（DN15-DN1200）
  • Pressure Class:150# 300# 600#900#1500#
  • Facing Type:RF,FF,RTJ
  • Slip-On Flange,Lap Joint Flange,Threaded Flange
  • Dimensions:½” NB – 24″ NB（DN15 – DN600）
  • Pressure Class: Class 150 to 2500
  • Face: Raised face (RF), Ring type joint (RTJ)
  • Blind Flange
  • Dimensions:½” – 60″（DN15-DN1500）
  • Pressure Class:150# 300# 600#900#1500#

Types of Steel Pipes & Tubes

  •  Seamless Pipe
  • OD Φ6 – Φ630 mm, WT 0.5 – 80 mm
  • Welded Pipe
  • OD Φ15 – Φ3000 mm (up to 3m for spiral)
  • Precision Tube
  • OD Φ4 – Φ100 mm, WT tolerance ±0.05mm
  • Capillary Tube
  • OD 0.5 – 6 mm, WT down to 0.1mm
  • Coiled Tube
  • Up to 100–1000m long, for OD < Φ25mm

Types of Fittings

  • Elbow:Butt-Weld┃Socket Weld ┃Threaded
  • 90°, 45°, and 180°. Available in Long Radius (LR) and Short Radius (SR) types.
  • Nominal Diameter (DN): DN6 – DN1200 (NPS ¼” – 48″)
  • Schedule : SCH 5, 10, 20, 30, 40, 80, 160, XXS
  • Custom angles (e.g., 30°, 60°), U-bend heat exchanger tubes
  • Tee:Equal┃Reducing┃Butt-Weld┃Socket Weld┃Threaded
  • Nominal Diameter (DN): DN6 – DN1200 (NPS ¼” – 48″)
  • Schedule : SCH 5, 10, 20, 30, 40, 80, 160, XXS<
  • Cap:Butt-Weld┃Threaded┃Socket Weld
  • Nominal Diameter (DN): DN6 – DN1200 (NPS ¼” – 48″)
  • Schedule : SCH 5, 10, 20, 30, 40, 80, 160, XXS
  • Custom non-standard sizes, small batch orders
  • Weldolet,Sockolet,Threadolet,Latrolet,Nipolet,Lapolet
  • Run Pipe: DN25 – DN1200 (NPS 1″ – 48″)
  • Outlet Branch: DN6 – DN200 (NPS ¼” – 8″)
  • Schedule: SCH 40, 80, 160, XXS (matched to run pipe)

Overall Supply Range of Metal Strip & Foil

Strip & Foil
  • Thickness(Thin Strip):0.02 mm – 0.5 mm
  • Thickness(Foil):≤ 0.02 mm（20 μm）
  • Narrow width: 5–50 mm (for electronic leads)
  • Wide width: 50–600 mm (for general coil applications)
  • Coil Length:Continuous rolls, each roll 10–3000 meters
  • Roll weight: 1–500 kg (depending on material density)
  • Finishes:Bright,Matte,Embossed,Coated

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