INDUSTRIAL METALS · MATERIAL SOURCING · FABRICATION
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TOOL STEEL (COLD WORK)

C45U (carbon tool steel) equivalents, chemistry & properties.

C45U (carbon tool steel) is a tool steel (cold work) used for mostly used for die sets, bolsters, backing plates, tool holders and unhardened tool parts. Below are its equivalent designations in nine standards, chemical composition, mechanical properties and density.

C45U (carbon tool steel) equivalent grades

USA (ASTM / AISI / SAE)
AISI 1045 / W1 type (nearest)
Europe (EN)
C45U
Werkstoff No. (W.Nr)
1.1730
Japan (JIS)
S45C (nearest)
China (GB)
45 (nearest)

Key data

Family
Tool steel (cold work)
Density
7.85 g/cm³
Typical mechanical
Supplied annealed about 207 HB max; can be flame hardened
Typical uses
Mostly used for die sets, bolsters, backing plates, tool holders and unhardened tool parts
Weight
Calculate weight in C45U (carbon tool steel)

C45U (carbon tool steel) chemical composition (weight %)

ISO 4957:2018 C45U, cast analysis

CSiMnPS
0.42–0.500.15–0.400.60–0.80≤0.030≤0.030

Grades similar to C45U (carbon tool steel)

Frequently asked questions

What is the equivalent of C45U (carbon tool steel)?

C45U (carbon tool steel) equivalents: USA (ASTM / AISI / SAE) AISI 1045 / W1 type (nearest); Europe (EN) C45U; Werkstoff No. (W.Nr) 1.1730; Japan (JIS) S45C (nearest); China (GB) 45 (nearest). Equivalents are close but not always identical; check the standard on your order.

What is the chemical composition of C45U (carbon tool steel)?

C45U (carbon tool steel) (ISO 4957:2018 C45U, cast analysis): C 0.42–0.50, Si 0.15–0.40, Mn 0.60–0.80, P ≤0.030, S ≤0.030 (weight %).

What is the density of C45U (carbon tool steel)?

About 7.85 g/cm³ (7,850 kg/m³), the value used for weight calculations.

Need C45U (carbon tool steel)?

Steel Impex India, Mumbai, supplies C45U (carbon tool steel) in pipes, plates, sheets, bars and fittings as available, with mill test certificates. Send the grade, standard, size and quantity.