C45R steel plate



C45R steel plate

C45R steel

|C45R EN 10083-2:2002, Number: 1.1201 |Comparison of steel grades |

| |JUS |(Č.1580) |

| |DIN |(Cm45) |

| |BS |(080M46) |

| |GOST |- |

| |AISI |(1049) |

| |UNI |- |

| |NF |(XC48H1u) |

C45R Chemical analysis -% by mass

|Chemical elements |

|Symbol |mm |

| |1 |4 |5 |

|+HH4 +HH14 +HL4 +HL14 |- |41 to 60 |- |

| |57 to 62 |41 to 60 |- |

| |- |30 to 49 |- |

| |55 to 60 |30 to 49 |- |

Maximum hardness for products to be supplied in the ’’treated to improve shearability (+S)’’ or ’’soft annealed (+A)’’ condition

|+S (HB max.) |+A (HB max.) |

|255 |207 |

C45R Mechanical properties in the quenched and tempered condition (+QT)

|  |Mechanical properties for the ruling sections (see prEN10083-1:2002, Annex A) with a diameter (d) or|

| |for flat products trickness (t) of |

| |d ≤ 16mm t ≤ 8mm |16mm < d ≤ 40mm 8mm < t ≤ 20mm |40mm < d ≤ 100mm 20mm < t ≤ 60mm |

|Re min (MPa) |490 |430 |370 |

|Rm (MPa) |700-850 |650-800 |630-780 |

|A min. (%) |14 |16 |17 |

|Z min. (%) |35 |40 |45 |

|KV min. (J) |25 |25 |25 |

Mechanical properties in the normalized condition – (+N)

|  |Mechanical properties for products with a diameter (d) or, for flat products trickness (t) of |

| |d ≤ 16mm t ≤ 16mm |16mm < d ≤ 100mm 16mm < t ≤ 100mm|100mm < d ≤ 250mm 100mm < t ≤ |

| | | |250mm |

|Re min. (MPa) |340 |305 |275 |

|Rm min. (MPa) |620 |580 |560 |

|A min. (%) |14 |16 |16 |

Hardness of surface hardened zones for special steels intended for flame and induction hardening

HRC min. 55

C45R Heat treatment conditions

|Quenching 0C |Quenching agent |Tempering temperature 0C|Hardening temperature in|Normalizing 0C |

| | | |the end quench test 0C | |

|820-860 |Water or oil |550-660 |8500±5 |840 to 900 |

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