W.Nr.2.4602 is a nickel-chromium-molybdenum alloy with enhanced resistance to pitting, crevice corrosion and stress corrosion cracking. It resists the formation of grain boundary precipitates in the weld-heat affected zone making it suitable for use in the as-welded condition. W.Nr.2.4602 has outstanding resistance to both reducing and oxidizing media and because of its resistibility can be used where "upset" conditions are likely to occur. It is proven to possess excellent weldability and high corrosion resistance as consumable filler wires and electrodes. The alloy has proven results as a filler wire in many applications. As filler wire use when other corrosion resistant wires have failed.
W.Nr.2.4602 can easily be cold-worked because of its ductility and cold-forming is the preferred method of forming. More energy is required because the alloy is generally stiffer than austenitic stainless steels. 0.28" thick sheet in the heat-treated at 2050°F
W.Nr.2.4602 (UNS N06022) Chemical composition :
Cr |
Mn |
C |
Mo |
Si |
Fe |
20.0~22.5 |
0.50 |
0.015 |
12.5~14.5 |
0.08 |
2.0~6.0 |
W.Nr.2.4602 (UNS N06022) Mechanical Property Requirements
|
Ultimate Tensile |
Yield Strength (0.2% OS) |
Elong in 2 in(50.8mm) or 4D min. % |
R/A |
Hardness |
Min |
100 KSi |
45 KSi |
45 |
- |
- |
Max |
|
|
- |
- |
- |
Min |
690 MPa |
310 MPa |
- |
- |
- |
Max |
|
|
|
|
- |
Fabrication of W.Nr.2.4602
Although ductile enough to be formed by cold working, intermediate annealing may be necessary due to work hardening. Forging should be performed between 1750-2050° F followed by rapid cooling. Annealing can be performed at a temperature range between 2020-2150° F followed by a rapid quench. Cooling at an accelerated rate avoids the formation of detrimental phases which form between 1400-1800° F. Welding can be done by gas tungsten-arc, gas metal-arc and shielded metal-arc processes.
W.Nr.2.4602 applications :
1.Pharmaceutical industries use W.Nr.2.4602 fittings and tubing to avoid contamination caused by 2 .corrosion related failures
3 .Cellophane manufacturing
4 .Chlorination systems
5 .Pesticide production
6 .Incineration scrubber systems
7 .Chemical process industry in equipment like flue gas scrubbers, chlorination systems, sulfur dioxide scrubbers, pulp and paper bleach plants, pickling systems, and nuclear fuel reprocessing Waste water processing
- Nickle alloys & Super alloys
- Stainless steel & Heat resistant steel
- Carbon steel
- Low alloy high strength steel
- High strength steel
- Boiler steel plate
- Shipbuilding steel plate
- Bridge structural steel
- Weathering steel
- Wear resistant steel
- Pipeline steel
- High carbon steel
- Alloy steel
- CQ/DQ/DDQ/CSS/HSS Grade steel
- Hot rolled steel coil
- Cold rolled steel coil
- Pickled & oiled steel coil
- Electrical steel
- Galvanized and prepainted steel
- Shipbuilding angle steel bar
- Shipbuilding bulb flat bar
- Shipbuilding L shape bars