EN1092 C45 Forged Steel Flange 1.0503
Product Overview
EN1092 C45 forged steel flange manufactured from 1.0503 steel material, compliant with B16.9 standards for forged steel flanges.
Material Specifications
| Grade |
C45 |
| Number |
1.0503 |
| Classification |
Non-alloy quality steel |
Applicable Standards
- EN 10277-2: 2008 - Bright steel products for general engineering purposes
- EN 10083-2: 2006 - Steels for quenching and tempering
- EN 10250-2: 2000 - Open steel die forgings for general engineering purposes
Chemical Composition (%) - EN 10277-2-2008
Cr + Mo + Ni = max 0.63
| Element |
Content Range |
| C (Carbon) |
0.43 - 0.5 |
| Si (Silicon) |
max 0.4 |
| Mn (Manganese) |
0.5 - 0.8 |
| Ni (Nickel) |
max 0.4 |
| P (Phosphorus) |
max 0.045 |
| S (Sulfur) |
max 0.045 |
| Cr (Chromium) |
max 0.4 |
| Mo (Molybdenum) |
max 0.1 |
Mechanical Properties
Tensile Strength (Rm)
| Nominal Thickness (mm) |
Tensile Strength (+N) MPa |
| to 16 |
620 |
| 16 - 100 |
580 |
| 100 - 250 |
560 |
| 250 - 500 |
540 |
| 500 - 1000 |
530 |
| Nominal Thickness (mm) |
Tensile Strength (+C) MPa |
| 5 - 10 |
750-1050 |
| 10 - 16 |
710-1030 |
| 16 - 40 |
650-1000 |
| 40 - 63 |
630-900 |
| 63 - 100 |
580-850 |
Yield Strength
| Nominal Thickness (mm) |
Upper Yield Strength (+N) MPa |
| to 100 |
305 |
| 100 - 250 |
275 |
| 250 - 500 |
240 |
| 500 - 1000 |
230 |
| Nominal Thickness (mm) |
0.2% Proof Strength (+C) MPa |
| 5 - 10 |
565 |
| 10 - 16 |
500 |
| 16 - 40 |
410 |
| 40 - 63 |
360 |
| 63 - 100 |
310 |
Elongation
| Nominal Thickness (mm) |
Min. Elongation at Fracture (+C) % |
| 5 - 10 |
5 |
| 10 - 16 |
6 |
| 16 - 40 |
7 |
| 40 - 63 |
8 |
| 63 - 100 |
8 |
| Nominal Thickness (mm) |
Min. Elongation Lo = 5,65 √ So (+N) % |
| to 16 |
14 |
| 16 - 100 |
16 |
| 100 - 250 |
16 |
Hardness
| Condition |
Brinell Hardness (HBW) |
| +S |
255 |
| +A |
207 |
| +SH |
172 - 242 |
Material Properties
- Weldability: Can be welded with precautions due to medium-high carbon content
- Hardenability: Low hardenability in water or oil; suitable for surface hardening with high hardness of hardened shell
International Equivalent Grades
| Region |
Standard |
Equivalent Grade |
| EU EN |
C45 |
C45 |
| USA |
ASTM |
1042, 1045, Gr.1043 |
| Germany |
DIN, WNr |
C45 |
| Japan |
JIS |
S45C |
| France |
AFNOR |
AF65C45, C45 |
| England |
BS |
070M46, 50HS |
| Italy |
UNI |
1C45, C45 |
| Spain |
UNE |
C45k |
| China |
GB |
45 |
| Sweden |
SS |
1650 |
| Poland |
PN |
45 |
| Czechia |
CSN |
12050 |
| Austria |
ONORM |
C45SW |
| Russia |
GOST |
45 |
| International |
ISO |
C45 |