High Carbon Steel

Overview

High Carbon Steel Strips offer a versatile combination of excellent strength, ease of fabrication, and a smooth surface finish, making them a superior choice over mild steel for applications requiring high tensile strength and hardness. These steel strips can be tailored to meet the specifications of various products, making them an essential material in industries where durability and performance are critical.

High carbon steel strips are commonly used in the production of cold-rolled steel strips due to their optimal balance of hardness, material properties, and cost-effectiveness. They are ideal for manufacturing tools and components that need to maintain sharpness and strength, such as knives and cutting tools, as well as items requiring flexibility and resilience, such as springs, knitting needles, horns, measuring tapes, and washers.
Compared to traditional carbon tool steel, high carbon steel contains a lower amount of carbon and higher levels of impurities. This composition allows it to deliver the strength and toughness required for various applications, although careful temperature and cooling control during heat treatment is crucial to avoid inconsistencies in hardness and structural integrity.

Owing to their workability, hardenability, affordability, and overall performance, high carbon steel strips are the most widely used cold-rolled special steel, suitable for both high-stress applications like blades and tools, and items needing elasticity and toughness like springs and flexible measuring tools. These attributes make high carbon steel strips an indispensable choice across numerous industries.

Specification

Types JIS SAE DN
High Carbon Steel S30CM, S35CM, S45CM, S50CM, S55CM, S60CM, S65CM, S70CM, S75CM, S85CM

SK2M (SK120M), SK3M (SK105M), SK4M (SK95M), SK5M (SK85M), SK6M (SK75M), SK7M (SK65M), SK5M Mo, SK2M Cr4
1030, 1035, 1045, 1050, 1055,1060, 1070, 1074, 1095, 1086 Ck30, Ck35, Ck45, Ck50, Ck55, Ck60, Ck75, C125W2, C105W2
Carbon Tool Steel

Dimensions

Pickled & Oiled Coil (PO)
Thickness (mm) Width (mm) Capacity (MT)
1.2 ~ 10.0 600 ~ 1,400 300,000 MTT
Cold Rolled Coil (CR)
Thickness (mm) Width (mm) Capacity (MT)
0.10 ~ 0.14 9 ~ 420 360,000 MT
0.15 ~ 6.40 * 9 ~ 1,320 *
6.50 ~ 8.00 * 120 ~ 650 *

*Detailed discussion required

Oscillating Coil
Thickness (mm) Width (mm) Capacity (MT)
0.3 ~ 2.5 15 ~ 65 9,000 MT
Mini Shear Line
Thickness (mm) Width (mm) Capacity (MT)
1.2 ~ 6.0 100 ~ 600 11,400 MT

Application

Engine Parts for Automotive
  • Gasket (SPCC)
  • Timing Chain (SAE1050M, SAE1055M, SAE1070M, SAE1552M)
  • Tappet (SCM415)
  • Rocker Arm (16MnCr5)
Transmission Parts for Automotive
  • Drive Plate (S35C, S55C, SK85)
  • Torque Converter (SPHC, SAPH440)
  • Detent Spring (SK85, 51CrV4)
  • Wave Spring (SAE1070, SAE1074, SK85)
  • Transmission Band (S35C, S45C)
  • Friction Plate (SPCC, C35C, S55C, SAE1020, S45C)
  • Plate Stop (SK85, 50CrV4)
  • Separate Plate (SPCC, S20C)
Clutch Parts for Automotive
  • Clutch Diaphragm (SK85, 50CrV4, 51CrV4, 58CrV4)
  • Cushion Plate (S70C, SAE1070, SK85)
Bearing Parts for Automotive
  • Bearing Cage, Cup (SCM415)
  • Thrust Needle Bearing Retainer (SPCC)
  • Thrust Needle Bearing Race (SK85, CK75)
Seat/Seat Rail Parts for Automotive
  • Seat Recliner (SPCC)
  • Seat Rail (SAE1050M, SAE1055M, SAE1070M, SAE1552M)
  • Seat Parts Upper Tooth & Lower Tooth (S45C, SCM415, SCM435, SNCM220)
Interior and Exterior Parts for Automotive
  • Door Latch (S45C, SCM415, SCM435, SNCM220)
  • Snap Ring (S45C, S50C, SK85)
  • Clip (S50C, SK85, 51CrV4)
  • Hose Clamp (S60C, S65C, S70C, SAE1070, 50CrV4, 51CrV4)
  • Washers (S45C, S50C, S60C, S65C, S70C, SAE1074, SK85)
Safety Belt Parts for Automotive
  • Safety Belt Case (S45C, SPFC590, SCM430)
  • Seat Belt Height Adjuster (S45C, S50C, S55C, SPFC590, SPFC780, SCM430, AISI4140)
  • Tongue (S50C, S55C, C60E, SAE1060)
  • Safety Belt Anchor and Bracket (S45C, S50C, S55C)
  • Lock Gear & Lock Plate (S45C, S55C)
  • Safety Belt Spring (SAE1074, SK85)
  • Safety Belt Base & Buckle Frame (S50C, S55C, C60E, SPFC590, SCM430, SCM440)
Industrial Use
  • Shank (SK85, SCM430, SCM435)
  • Weed Knife (S70C, SKS51, SK85)
  • Saw Blade (SK85, SK95, SK105)
  • Safety Shoes Cap (S50C, S55C, S70C)
  • Prune Scissors (S45C, SK85)
  • Measuring Tape (S50C, SK85, SK95)
  • Knitting Needle (SK85, SK95)
  • Knife (SK85, SK105, SK2Cr5)
  • Handcuffs (S10C, S45C)
  • Nail Clipper (SPCC, S15C)
  • Machete (SAE1070)
  • Chain Saw (SAE8660)