UGIMA® 4057 QT900
UGIMA® 4057 QT900 introduction
UGIMA® 4057 is a member of the UGIMA® family of improved machinability martensitic stainless steels. It is developed exclusively by Ugitech.
Its properties are identical to those of 1.4057, except for its machinability which is even better than that of 1.4057:
UGIMA® 4057’s new technological advances are extremely advantageous and a great improvement on 1.4057.
productivity increases of between 10% and 20% over grade 1.4057 have been obtained. Such increases are more noticeable in the case of monobloc carbide drilling or when a carbide-tipped toolbit is used.
In addition to excellent corrosion resistance, this stainless steel has the particular advantage of offering a wide range of mechanical properties in the processed condition. This grade also meets the requirements of EN10272 with respect to pressure vessels.
Its performance - depending on its metallurgical condition - ensures compliance with high mechanical strength require-ments and meets the demands of applications where substantial resilience is needed.
Equivalent material: DIN 1.4057, EN 1.4057, EN X17CrNi16-2, DIN X17CrNi16-2, UNS S43100, ASTM S43100, JIS SUS431, ISO 4057-431-00, ISO X17CrNi16-2, AFNOR Z15CN16.02, BS 431S29, SS 2321
UGIMA® 4057 QT900 general
| Property |
Value |
| Density |
Density of 7.7 g/cm³ |
UGIMA® 4057 QT900 thermal
| Property |
Value |
Comment |
| Coefficient of thermal expansion |
Coefficient of thermal expansion of 0.0000105 1/K |
20 to 100°C |
| Specific heat capacity |
Specific heat capacity of 460 J/(kg·K) |
- |
| Thermal conductivity |
Thermal conductivity of 25 W/(m·K) |
- |
UGIMA® 4057 QT900 chemical
| Property |
Value |
Comment |
| Carbon |
Carbon of 0.16 - 0.2 % |
- |
| Chromium |
Chromium of 15.5 - 17.0 % |
- |
| Manganese |
Manganese of 1.0 |
max. |
| Phosphorus |
Phosphorus of 0.035 |
max. |
| Silicon |
Silicon of 0.8 |
max. |
| Sulfur |
Sulfur of 0.015 - 0.03 % |
- |
UGIMA® 4057 QT900 electrical
| Property |
Value |
| Electrical resistivity |
Electrical resistivity of 7e-07 Ω·m |
UGIMA® 4057 QT900 mechanical
| Property |
Temperature |
Value |
Comment |
| Charpy impact energy, V-notch |
- |
Charpy impact energy, V-notch of 15.0 - 20.0 J |
min., depending on the size |
| Elastic modulus |
23 °C |
Elastic modulus of 215 GPa |
- |
| - |
100 °C |
Elastic modulus of 215 GPa |
- |
| Elongation |
- |
Elongation of 10.0 - 12.0 % |
min., depending on the size |
| Tensile strength |
- |
Tensile strength of 900.0 - 1050.0 MPa |
- |
UGIMA® 4057 QT900 application
| Property |
- |
- |
| Application areas |
| Corrosion properties |
Environment |
Behaviour/ Use |
| Nitric acid |
Good |
| Phosphoric acid |
Restricted use |
| Sulphuric acid |
Restricted use |
| Acetic acid |
Restricted use |
| Sodium carbonate |
Average |
| NaCl (Saline mist ) |
Average |
| Humidity |
Good |
| Sea water |
Restricted use |
Count on us as your trusted partner for all your steel needs, from sourcing to delivery.
-- Our promise
Similar or equivalent steel materials
Get a quote