2012年9月26日
Topics Covered
介绍
化学成分
物理特性
机械性能
Thermal Properties
其他名称
Applications
介绍
Stainless steels are high-alloy steels with good corrosion resistance due to the presence of large amounts of chromium in these steels. Most of the stainless steels contain about 10% of chromium.
Stainless steels are available in three different groups based on their crystalline structure. These groups include martensitic, austenitic and ferritic. The combination of martensitic and ferritic steels forms a fourth group of stainless steels known as precipitation-hardened steels.
The following datasheet provides an overview of grade 403 stainless steel.
化学成分
下表在下表中概述了403级不锈钢的化学成分。
| Element |
Content (%) |
| 铁，铁 |
86 |
| Chromium, Cr |
12.3 |
| 明尼苏达州锰 |
1.0 |
| Silicon, Si |
0.50 |
| Carbon, C |
0.15 |
| 磷，p |
0.040 |
| Sulfur, S |
0.030 |
| Carbon, C |
0.15 |
物理特性
The following table shows the physical properties of grade 403 stainless steel.
| Properties |
Metric |
Imperial |
| Density |
7.80 g/cm3 |
0.282 lb/in³ |
机械性能
The mechanical properties of grade 403 annealed stainless steel are displayed in the following table.
| Properties |
Metric |
Imperial |
| Tensile strength |
485 MPA |
70300 psi |
| Yield strength (@strain 0.200 %) |
310 MPA |
45000 psi |
| Fatigue Strength (annealed, @diameter 25mm/0.984 in) |
275 MPa |
39900 psi |
| Shear modulus (typical for steel) |
76.0 GPA |
11000 ksi |
| Elastic modulus |
190-210 GPa |
27557-30458 ksi |
| Poisson's ratio |
0.27-0.30 |
0.27-0.30 |
| Elongation at break (in 50 mm) |
25.00％ |
25.00％ |
| Izod impact (tempered) |
102 j |
75.2 ft-lb |
| Hardness, Brinell (converted from Rockwell B hardness) |
139 |
139 |
| Hardness, Knoop (converted from Rockwell B hardness) |
155 |
155 |
| Hardness, Rockwell B |
80 |
80 |
| Hardness, Vickers (converted from Rockwell B hardness) |
153 |
153 |
Thermal Properties
The thermal properties of grade 403 stainless steel are given in the following table.
| Properties |
Metric |
Imperial |
| 热膨胀同时（@0-100°C/32-212°F） |
9.90 µm/m°C |
5.50 µin/in°F |
| Thermal conductivity (@500°C/932°F) |
21.5 W/mK |
149 BTU in/hr.ft².°F |
其他名称
Equivalent materials to grade 403 stainless steel are given in the table below.
| AISI 403 |
AISI 614 |
ASTM A176 |
ASTM A276 |
ASTM A473 |
| ASTM A314 |
ASTM A479 |
ASTM A511 |
ASTM A580 |
DIN 1.4000 |
| QQ S763 |
AMS 5611 |
AMS 5612 |
联邦QQ-S-763 |
MIL SPEC MIL-S-862 |
| SAE 51403 |
SAE J405 (51403) |
Applications
Grade 403 stainless steel is used in turbine parts and compressor blades.