Aceroinoxidable----Grade T7 Tool Steel (UNS T12007)
Introduction
Tool steels ar a sort of carbon and alloy steels that ar used for tool producing applications. they need resistance to abrasion and deformation at elevated temperatures, distinct hardness and a capability to carry a leading edge.
AISI T7 alloy steel acquires high strength, toughness and also the ability to resist vibration and shock once quenched and tempered.
The data below can offer an summary of grade T7 tool steels.
Chemical Composition
The chemical composition of T7 tool steels is printed within the following table.
|
Element |
Content (%) |
|
Tungsten, W |
13.5-14.5 |
|
Chromium, Cr |
4.5-5 |
|
Vanadium, V |
1.5-1.8 |
|
Carbon, C |
≤ 0.7-0.75 |
|
Silicon, Si |
≤ 0.2-0.4 |
|
Manganese, Mn |
≤ 0.2-0.4 |
|
|
|
Physical Properties The Bellowing table shows the physical properties of T7 tool steels
|
Properties |
Metric |
Imperial |
|
Density |
7.7 g/cm3 |
0.278 lb/in3 |
|
Melting point |
1450 � 1510�C |
2642 � 2750�F |
Mechanical Properties The mechanical properties of T7 tool steels ar displayed within the following table
|
Properties |
Metric |
Imperial |
|
Tensile strength |
650-880 MPa |
94274 -127663psi |
|
Yield strength |
350-550 MPa |
50763-79770 |
|
Young�s modulus |
200000 MPa |
29007.5 ksi |
|
Elongation at break |
8-25% |
8-25% |
Thermal Properties The thermal properties of T7 tool steels ar given within the following table
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient |
10 µm/m°C |
5.5 µin/in°F |
|
Thermal conductivity |
25 W/mK |
173.3 BTU.in/hrft².°F |
Applications The following ar the list of applications of T7 tool steels: Chisels, tiny gas tools, shaping die, Rivets, Carpenter saws and Metal scissors. Key Words: Stainless Steel Plates, Stainless Sheet 304, aceroinoxidable