| Model: | 1.8509 |
|---|---|
| Brand: | - |
| Origin: | Made In China |
| Category: | Metallurgy , Mining & Energy / Metallurgy & Mining / Stainless Steel |
| Label: | - |
| Price: |
US $1.2
/ KGS
|
| Min. Order: | 10 KGS |
| Last Online:13 Sep, 2022 |
Al-alloyed nitriding steel grade for large-sections.
Application
Structural parts with high surface hardness - piston rods, extruders, cylinders, shafts, straightening tools, measuring tools, etc.
Related Products
Related specifications:
Germany W.Nr. 1.8509
DIN 41CrAlMo7
Great Britain EN 41B
B.S. 905M39
France AFNOR 40CAD6,12
Italy UNI 41CrAlMo7
Belgium NBN 41CrAlMo7
Sweden SS 2940
Spain UNE 41CrAlMo7
Process: EAF/LD+LF+VOD+ hot Forged/hot rolled+Heat Treatment(optional)
SIZE RANGE:
Round: Dia 10mm - 1200mm
SURFACE FINISHES:
Black, grinded, turned
Ultrasonic test: According to SEP 1921-84
Soft Annealing
Heat to 650-700oC, cool slowly. This will produce a maximum Brinell hardness of 248.
Hardening
Harden from a temperature of 870-930oC followed by oil/polymer or water quenching.
Tempering
Tempering temperature: 580-700oC.
Forging
Hot forming temperature: 1050-850oC.
Chemical Composition:
|
Grade |
C |
Mn |
P |
S |
Si |
Cr |
Mo |
Al |
|
41CrAlMo7 |
0.38-
|
0.40-
|
0.025
|
0.035 max |
0.40
|
1.50-
|
0.20-
|
0.80-
|
Mechanical properties of grade 41CrAlMo7 (1.8509)
|
Nominal thickness (mm): |
16 - 40 |
40 - 100 |
100 - 160 |
160 - 250 |
|
|
|
|
|
|
|
Rm - Tensile strength (MPa) (+QT) |
950-1150 |
900-1100 |
850-1050 |
800-1000 |
|
Nominal thickness(mm): |
16 - 40 |
40 - 100 |
100 - 160 |
160 - 250 |
|
|
|
|
|
|
|
Rp0.2 0.2% proof strength (MPa) (+QT) |
750 |
720 |
670 |
625 |
