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Carbon Steel.png

Carbon Steel

Carbon steels, with small amounts of alloying elements such as lead, sulfur, and bismuth, are known as engineering steels or free-cutting steels. These grades have been specifically designed to exhibit good machining properties by forming small chips, extending tool life, or a combination of both.

Depending on the composition, these materials can increase their machinability in line with an increase in their alloying elements. However, this can be to the detriment of the existing mechanical properties of low-carbon steels by increasing the brittleness and reducing ductility. To counter this, many grades can be heat-treated to improve their properties via annealing, nitriding, carburising, and through-hardening.

These steel grades are used to create precision-machined parts for the automobile and aerospace industries, as well as for general engineering purposes.

Integ Metals supplies all of the grades below in the displayed shapes, so please feel free to contact our expert team directly for further information or to place an order.

Carbon Steel

230M07.png

Supplied Shapes

  • Round Bar

  • Flat Bar

  • Hex Bar

  • Square Bar

230M07 (EN1A)

Int'l Equivalents

SAE

Werkstoff

DIN

1213

1.0715

9SMn28

Characteristics

  • Excellent machinability due to addition of sulfur

  • Good tool life

  • Excellent surface finish

  • Suitable for the manufacture of repeated parts

230M07 Pb.png

Supplied Shapes

  • Round Bar

  • Hex Bar

  • Square Bar

230mO7Pb
(EN1APB)

Int'l Equivalents

SAE

Werkstoff

DIN

1213

1.0718

9SMn28Pb

Characteristics

  • A lead-containing version of 230M07.

  • All the properties of 230M07, with enhanced high speed machining properties courtesy of the lead addition. 

070M20.png

Supplied Shapes

  • Round Bar

  • Flat Bar

  • Hex Bar

  • Square Bar

070M20 (EN3A/EN3B)

Int'l Equivalents

SAE

Werkstoff

DIN

1023

1.0402

C22

Characteristics

  • A low carbon mild steel, used as a general commercial quality grade

  • Good machinability

  • Can be case hardened to improve wear resistance

080M40.png

Supplied Shapes

  • Round Bar

  • Hex  Bar

  • Flat Bar

  • Square Bar

080M40 (EN8)

Int'l Equivalents

SAE

Werkstoff

DIN

1040

1.0511

C40

Characteristics

  • Heat-treatable medium carbon steel

  • Good machinability up to moderate machining speeds

  • Good tensile strength

080A42.png

Supplied Shapes

  • Round Bar

  • Hex Bar

  • Square Bar

  • Flat Bar

080A42 (EN8D)

Int'l Equivalents

SAE

Werkstoff

DIN

1042

1.0503

C45

Characteristics

  • Heat-treatable medium carbon steel

  • Good machinability up to moderate machining speeds

  • Good tensile strength

212A42.png

Supplied Shapes

  • Round Bar

  • Hex Bar

212A42 (EN8DM)

Int'l Equivalents

SAE

Werkstoff

DIN

1141

1.0764

46S20

Characteristics

  • Medium carbon free cutting steel

  • May be heat-treated to enhance wear resistance

  • Similar grade to 080M40/EN8, but better suited to repetition machining

070M55.png

Supplied Shapes

  • Round Bar

  • Square Bar

  • Flat Bar

  • Hexagonal Bar

070M55 (EN9)

Int'l Equivalents

SAE

Werkstoff

DIN

1055

1.5035 / 1.1203

C55 / C55E

Characteristics

  • Medium carbon free cutting steel

  • May be heat-treated to enhance wear resistance

  • Higher medium tensile strength for a carbon steel

150M19.png

Supplied Shapes

  • Round Bar

150M19 (EN14)

Int'l Equivalents

SAE

Werkstoff

DIN

1524

1.1170

28Mn6

Characteristics

  • Low carbon manganese steel

  • Good shock resistance

  • Medium tensile strength

  • Good machinability

  • Good weldability

045M10.png

Supplied Shapes

  • Round Bar

045M10 (EN32A)

Int'l Equivalents

SAE

Werkstoff

DIN

1010

1.1121

C10

Characteristics

  • Unalloyed low carbon steel

  • Case-hardenable for enhanced wear characteristics

  • Low tensile strength

  • Good weldability

  • Good machinability

080A15.png

Supplied Shapes

  • Round  Bar

  • Hex Bar

  • Square  Bar

  • Flat Bar

  • Angle Bar

080A15 (EN32B)

Int'l Equivalents

SAE

Werkstoff

DIN

1016

1.0467

C15

Characteristics

  • Low carbon steel

  • Routinely used as a general commercial quality steel

  • Case-hardenable for enhanced wear resistance

  • Good machinability

  • Good weldability

210M15.png

Supplied Shapes

  • Round Bar

210M15 (EN32M)

Int'l Equivalents

SAE

Werkstoff

DIN

1117

1.0721

10S20

Characteristics

  • Semi-freecutting steel

  • Case-hardenable for enhanced wear resistance

  • Low strength, so usually applied to lightly stressed applications

080M50.png

Supplied Shapes

  • Round Bar

  • Square Bar

080M50 (EN43A)

Int'l Equivalents

SAE

Werkstoff

DIN

1049

1.0540

C50

Characteristics

  • Medium carbon steel

  • Moderate tensile strength

  • Through-hardenable to enhance wear-resistance and toughness

  • Good weldability

080M46.png

Supplied Shapes

  • Round Bar

  • Flat Bar

  • Plate

080M46 (C45)

Int'l Equivalents

SAE

Werkstoff

DIN

1045

1.1191

Ck45

Characteristics

  • Medium carbon steel

  • Moderate tensile strength

  • Through-hardenable to enhance wear-resistance and toughness

  • Good weldability

214M15.png

Supplied Shapes

  • Round Bar

214M15 (EN202)

Int'l Equivalents

SAE

Werkstoff

DIN

1117

1.0725

15SMn13

Characteristics

  • Low carbon steel

  • Case-hardenable for enhanced wear characteristics

  • Good machinability