| 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) | ||
Under EN 10083-2:2002 standard C45R Alloy steel properties and heat treatment forgings, Including C45R Alloy steel application and specifications, We have all specifications，Including C45R bars, rod, Plate, bar, square steel, rectangular steel,forgings, BEBON CHINA can own production and sales.
C45R Alloy steel Chemical analysis -% by mass
| Chemical elements | C | Si max. |
Mn | P max. | S | Cr max. |
Mo max. |
Ni max. |
Cr+Mo+Ni max. |
| %, by mass |
0,42-0,50
|
0,40 | 0,50-0,80 | 0.025 | 0,020-0,040 | 0,40 | 0,10 | 0,40 | 0,63 |
| Permissible deviation | ± 0.02 | +0,03 | ± 0,04 | + 0.005 | ± 0.005 | +0,05 | +0,03 | +0,05 | - |
Jominy’s hardenability band
| Distance in mm from quenched end Hardness in HRC (mm) | ||||||||||||||||||
| Symbol | mm | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 13 | 15 | 20 | 25 | 30 | |
| +H | max. | 62 | 61 | 61 | 60 | 57 | 51 | 44 | 37 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | |
| min. | 55 | 51 | 37 | 30 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | - | - | - | ||
| Symbol | Distance in mm from the quenched end HRC hardness | ||
| 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 |
Mechanical properties in the quenched and tempered condition (+QT)
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|
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 |
Heat treatment conditions
| Quenching 0C | Quenching agent | Tempering temperature 0C | Hardening temperature in the end quench test 0C | Normalizing 0C |
| 820-860 | Water or oil | 550-660 | 8500±5 | 840 to 900 |
Source:
Tags: C45R
