1)Shorter technology flow.
2)Micro-crystal structure,higher strength and toughness.
1,Melt-extracted steel fiber is made of adopting newest advanced technique-----Fusion and speedy stretch.And takes many advantages:
(a) Shorter technology flow.
(b) Micro-crystal structure,higher strength and toughness.
(c) Its section is inregular crescent-type with rough surface,therefore,it can combine with fire-resisting material so well.
(d) It has better high-temperature strength and high-temperature corrosive character.
2,Usage:Metallurgy industry (Heating Furnace),Cement industry,Oil chemicals,Construction etc.
3,Physical,mechanical,hot-corrosive properties and specifications of heat resisting stainless steel fiber
Performance (Alloy) | GD446 |
Melting point range °C | 1425--1510 |
Elastic modulus at 870 °C 10-- 4 Mpa | 9.65 |
Tensile Strength at 870°C, Mpa | 52.7 |
Expansile modulus at 870°C 10-- -6/°C | 13.14 |
Conductivity at 500°C w/m.k | 24.4 |
Gravity at normal temperature g/cm3 | 7.5 |
Weight loss after 1000hrs of cyclic oxygeration % | 4 |
Sharp cycling of air,oxygeration temperation °C | 1175 |
1095 | |
Corrosive rate in H2S mil/yr | 100 |
Maximum recommended temperature in SO2 °C | 1025 |
Corrosive ratio in natural gas at 815°C mil/yr | 4 |
Corrosive ratio in coal gas at 982°C mil/yr | 14 |
Nitrified ratio in non-water-amnesia at 525°C mil/yr | 175 |
Corrosive ratio in CH2 at 454°C mil/yr | 8.7 |
Carbon increment of alloy at 982°C,25hrs,40cycles % | 0.07 |
Thickness, mm Width, mm Length, mm | <0.20 <0.5 20,25,30,35 |
4,Its chemical specifications:
Items | Technique data |
| GD446 |
C | < 0.20 |
Si | < 2.0 |
Mn | < 2.0 |
Ni | < 0.60 |
Cr | 23---27 |
P | 0.030 |
5,It is looked like inregular crescent-type.
