C10E - Nr.1.1121 C10R - Nr.1.1207

C10E - Nr.1.1121 C10R - Nr.1.1207 Steel

Low-Carbon Non-Alloy Carburizing Steel

Low carbon non-alloy carburized steel. Quenched in water.

References and Comparable Standards

Standard Reference: EN ISO 683-3: 2018 (Hot-rolled) | EN 10277: 2018 (Bright products)

EUROPE ITALY GERMANY FRANCE UK USA
EN 10084: 2008
EN 10277-4: 2008
(UNI 7846-78) (DIN 17210-84) (NFA35-551-86) (BS970 pt.3--91) ASTM A 29
Grade   Werkstoff      
C10E  1.1121 C10 Ck10 1.1121 XC 10 045A10 1010
C10R 1.1207 - - -
 

 

Chemical Composition (Cast Analysis) (%)

EUROPE C Si Mn P/max S Cr/max  Mo/max Ni/max Cu/max Al Pb
C10E 0,07÷0,13 0,15÷0,40 0,30÷0,60 0,025 ≤0,035 0,40 0,10  0,40  0,30 0,020÷0,050 -
C10R 0,020÷0,040 -
C10RPb 0,020÷0,040 0,15÷0,30
 

 

Mechanical Properties - As Rolled Condition

Size
(mm)
Annealed to maximum hardness requirement
(+A)
Normalized
(+N)
d≤100 ≤131 85÷140
 

 

 

Mechanical Properties – Bright Steel

Size
(mm)
as Rolled + Turned
(+SH)
Cold drawn
(+C)
+A**+ Turned
(+A+SH)
+A**+ Cold drawn
(+A+C)
Hardness (HB)* Rm (MPa) Rp0,2 (MPa) min Rm (MPa) A5 (%) min Hardness (HB) max Hardness (HB) max
5≤d≤10 - - 350 460÷760 8 - 225
10<d≤16 - - 300 430÷730 9 - 216
16<d≤40 92÷163 310÷550 250 400÷700 10 131 207
40<d≤63 92÷163 310÷550 200 350÷640 12 131 190
63<d≤100 92÷163 310÷550 180 320÷580 12 131 172
* Hardness values valid also in as rolled condition.
**+A = annealed to maximum hardness requirement.
Note: For size <5 mm the mechanical properties may be agreed at the time of enquiry and order.
 

 

Working Temperatures Recommended

Operation °C
Hot forgings deformation 900÷1150
Carburizing temperature  880÷930 
Core quenching temperature   880÷980
Case quenching temperature 780÷820
Tempering 150÷200
Published: 01 January 2025 | Last Updated: 11 June 2026
Published: 01 January 2025 | Last Updated: 11 June 2026
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