Martensitic Stainless Steel
ALTA 1.4034 Stainless Steel Specification
Steel properties
ALTA 1.4034 stainless steel is a high-carbon martensitic stainless steel known for its excellent wear resistance and high strength. This steel has good corrosion resistance in moderately corrosive environments.
Due to its high carbon content, 1.4034 steel is capable of achieving extremely high hardness after proper heat treatment, making it excellent in many applications where wear resistance and high strength are required. It has good polishing properties and can be made into high-brightness surfaces, and is widely used in knives, surgical instruments and other fields.
Applications
² Manufacture of various knives, such as kitchen knives, medical device blades, industrial blades, etc. Its hardness and wear resistance make it suitable for knife fields that need to remain sharp and durable
² Surgical instruments, dental tools and other medical devices
² Manufacture of pipes, valves, pumps and other mechanical equipment
Chemical composition
Chemical Composition per %
|
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
Min. |
0.43 |
|
|
|
|
12.5 |
|
|
Max. |
0.50 |
1.00 |
1.00 |
0.030 |
0.030 |
14.5 |
0.25 |
0.30 |
Basic melting process : |
IM/EAF + LF + VD + (ESR) |
Hardness : |
Max 245 HB (annealed) |
Reduction ratio : |
5 : 1 minimum or required |
Grain size : |
≥ 5.0 per ASTM E112 |
Non-metallic inclusion : |
≤ 1.0 (thick), ≤ 1.5 (thin) per ASTM E45 method A (more pure by ESR route) |
Ultrasonic Test |
SEP1921, EN 10308, ASTM A388 or agreed methods |
Macro-structure |
As per ASTM E381 |
Straightness / flatness |
≤ 1.5 mm / m (machined), ≤ 2.5 mm / m (black) |
Tolerance |
Per discussed |
Size range (round bars) |
Ø 12 - 600 mm |
Size range (flats, plates) |
8 - 450 mm in thickness max. 1100 mm in width |
Heat treatment
Annealing |
Temperature(°C) |
Hardness |
750 - 850 |
max. 245 HB |
Hot-forming |
Temperature(°C) |
800 - 1100 |
Hardening and tempering |
Quenching temperature(°C) |
Quenching medium |
Frequently-used tempering temperature(°C) |
980 - 1030 |
Oil |
/ |
Ac1 | Ac3 | Ar1 | Ms |
820 | 930 | 780 | 270 |
Coefficient of thermal conductivity : λ W/(m·K)
Temperature °C | 20 |
λ | 30 |
Coefficient of linear expansion : α(mm/(mm·°C))
Temperature °C | 20~100 | 20~200 | 20~300 | 20~400 | 20~500 |
Αx 10-6 | 10.50 | 10.90 | 11.30 | 11.60 | 12.00 |
Downloads
-
2024-08-05 Alta 1.4034 SPEC (011 - S6 - T1 ).pdf
끂25 272.38 KB
Features
² High strength
² High hardenability
² Good wear resistance
² Good corrosion resistance
² Good machinability
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