Medium Carbon Steel Strips


Meduim Carbon Steels are similar to low carbon steel except that the carbon ranges from 0.30 to 0.60% & the manganese from 0.50 to 1.65%. Increasing the carbon content is approximately 0.5% with an accompanying increase in manganese allows medium carbon steels to be used in the quenched & tempered conditions. This steels are of particular importance because of unique combination of strength & toughness after heat treat treatment.


The following are the specifications covered by us in this range of steel:

Grade C-40

Grade C-55

Grade C-65

Grade C-40

Grade C-40
Chemistry:
Carbon % - 0.35 to 0.45
Silicon % - 0.10 to 0.35
Manganese % - 0.60 to 0.90
Sulphur % - 0.05 max
Phosphorus % - 0.05 max

Physical Properties:

Hardness: 170HV max

Yield Strees: 270N/mm2 min

Tensile Strength: 590N/mm2 max

Elongation %: 30 min


Range:

Thickness: 0.10 mm to 4.00 mm

Width: 8 mm to 500 mm

Hardness: Fully annealed or rolling hard as per customer requirement.

Features: Due to low carbon content, this grade of steel offers better forming & bending quality.It is used for applications, where critical bending operation are required. Due to carbon range of 0.4% and manganese 0.9%, it can also be quenched & tempered and thus it is very suitable for components where, critical bending has to be achieved & high tensil and toughness can be obtained by means of quenching & tempering.

Application:- accessories for guns & cannous, pen clips, hair clips, high tensil steel strapping etc.


Grade C-55

Grade C-55
Chemistry:
Carbon % - 0.50 to 0.60
Silicon % - 0.10 to 0.35
Manganese % - 0.50 to 0.65
Sulphur % - 0.05 max
Phosphorus % - 0.05 max

Physical Properties:

Hardness: 180HV max

Yield Strees: 270N/mm2 min

Tensile Strength: 590N/mm2 max

Elongation %: 30 min


Range:

Thickness: 0.10 mm to 4.00 mm

Width: 8 mm to 500 mm

Hardness: Fully annealed or rolling hard as per customer requirement.

Features: Due to slightly higher carbon, higher hardness can be achieved resulting in higher tensile strength and better toughness in fully annealed condition, this material is also very suitable for component where critical bending or forming is required before heat treatment.

Application:- accessories for guns & cannous, pen clips, hair clips, high tensil steel strapping etc.


Grade C-65

Grade C-65
Chemistry:
Carbon % - 0.60 to 0.70
Silicon % - 0.10 to 0.35
Manganese % - 0.50 to 0.80
Sulphur % - 0.05 max
Phosphorus % - 0.05 max

Physical Properties:

Hardness: 200 HV max

Yield Strees: 270N/mm2 min

Tensile Strength: 590N/mm2 max

Elongation %: 30 min


Range:

Thickness: 0.10 mm to 4.00 mm

Width: 8 mm to 500 mm

Hardness: Fully annealed or rolling hard as per customer requirement.



Note:
The following factors should be kept in mind in selecting a specific grade:-

  1. The grade has a marked influence on hardenability - the property which determines the hardness pattern throughout a piece of steel hardened in a stated manner.
  2. The best properties can be obtained in a steel that has been fully hardened before tempering. incomplete hardening has a harmful effect on some of the properties specially yield strength & toughness.

In selection of a steel for a particular component, the most important question is whether the mechanical properties required can be obtained after suitable heat treatment, in the size and shape at the part in question.





Low Carbon / Mild Steel Strips


Low carbon steels contains up to 0.30% C. The largest category of this class of steel is flat rolled products (sheet or strip), usually in the cold rolled & annealed condition.

The following table will show the specifications of steel we can often off the shelf:

MATERIAL SPECIFICATIONS
  SPECIFICATIONS   CHEMICAL COMPOSITION MECHANICAL PROPERTIES
    Grade C Mn S P Tensile Kgf/mm0$2 Elong.(%) min.(a)
1. ORDINARY IS:513-1986 O 0.15 0.60 0.055 0.055 - -
2. DRAWING IS:513-1986 D 0.12 0.50 0.040 0.040 28-42 28
  BS:1449/Part-1/1983 CR-4 0.12 0.60 0.050 0.050 29 min. -
  JIS:G-3141/1977 SPCC 0.12 0.50 0.045 0.040 28 min. 32(b)
  DIN:1623/Part-1/1983 St12 0.10 - - - 28-42 28(d)
3. DEEP DRAWING
   IS: 513/1986 DD 0.10 0.45 0.035 0.035 28-38 32
  BS:1449/Part-1/1983 CR-3 0.19 0.50 0.040 0.040 20 min. 25(c)
  JIS:G-3141 / 1977 SPCD 0.10 0.45 0.035 0.035 28 min. 34.41(b)
  DIN:1623/Part-1/1983 RRSt13 0.10 - - - 28-38 34(d)
4. EXTRA DEEP DRAWING
  IS:513/1986 EDD 0.08 0.40 0.030 0.030 28-36 36
  BS:1449/Part-1/1983 CR-2 0.08 0.45 0.035 0.030 29 min 27(c)
  JIS:G-3141/1977 SPCE 0.08 0.40 0.030 0.030 28 min 36.43(b)
  DIN:1623/Part-1/1983 RRSt-14 0.08 - - - 28-36 38(d)
5. NON-AGEING EXTRA DEEP DRAWING
  BS:1449/Part-1/1983 CR-1 0.08 0.45 0.030 0.025 29 min. 29(c)

Notes:

Gauge Length

IS-513 : 80 mm

BS-1449 :200 mm

JIS-G 3141 : 50 mm

DIN-1623 : 80 mm


Range:

Thickness: 0.07 mm to 5.00 mm

Width: 4 mm min to 1800 mm max

Hardness: As per customer requirement

  • Dead soft meterial with maximum hardness of 90 VPN
  • Soft/annealed
  • Quarter hard
  • Half hard
  • Full hard

Applications: Typical uses are battery caps, picture tubes, safety pins, hinges, clips, cans, body panels, numerous components for automatic industry, defense, rolling shutters, concertina wire,etc.

Battery

Safety Pin

Cycle Rim

Coils/Sheets: Material can be supplied in coils or sheets as required.


Feel free to contact us with your requirements of Low Carbon Steel Strips, Medium Carbon Steel Strips and we will be happy to get back with a no obligation technical and commercial proposal.

Please get in touch right away and give us an idea about your requirements. We will send you full details and a proposal on no-obligation basis as soon as possible.

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