High temperature high strength alloy steel NA15
NA15 is a fully austenitic low-carbon nickel - iron - chromium alloy in the same series of With NA15, the cobalt content of alloy can be strictly controlled under 0.01%. NA15 ability a lot of corrosion medium corrosion. Its high content of nickel in the aqueous corrosion condition has the very good resistance to stress corrosion cracking performance. NA15 alloy steel usually applied in nitric acid condenser, nitric acid corrosion resistance, steam heating pipe and so one which request 500 degree working environment. NA15alloy steel usually be delivered with annealed state.
1. NA15 equal material:W.Nr.1.4876, X10NiCrAlTi3220,Z8NC32.21, UNS N08811, FeNi32Cr21AlTi, X 8 NiCrAlTi 32-21, Incoloy 800, W.Nr.1.4959. HT
| % | Ni | Cr | Fe | Mo | Co | C | Mn | Si | S | P | Cu | Al | Ti |
| min | 30.0 | 19.0 | 0.06 | 0.15 | 0.15 | ||||||||
| max | 35.0 | 23.0 | 39.5 | 0.1 | 1.5 | 1.0 | 0.015 | 0.75 | 0.60 | 0.60 |
3. NA15 Physical properties :
NA15 alloy steel Density: 8.0g/cm3
NA15 alloy steel Melting temperature range :1350-1400 degree
4. NA15 Mechanical properties at room temperature (minimum)
| NA15 alloy steel product | specifications | yield strength RP0.2 N/mm2 | yield strength RP1.0 N/mm2 | Tensile strength Rm N/mm2 | elongation A50% | hardness HB |
| cold rolling strip hot rolled plate | 0.5-6.4 | 240 | 265 | 585 | 30 | <=200 |
| 5-100 | 135-165 | |||||
| bar Cold working Hot working | 1.6-64 | |||||
| 25-100 | ||||||
| >100-240 | 220 | 250 | 550 | 35 | ||
| pipe Cold working Hot working | 64-240 | 180 | - | 530 | 30 | - |
| 5-100 | 240 | 265 | 585 | 30 | ||
| Condensation and heat exchanger | 16-76 |
5. Application: NA15alloy steel are widely used in various industrial sectors whose working temperature does not exceed 550 degree. Typical applications are:
sulfuric acid pickling factories with the heating pipe, containers, baskets, and chain, etc.
water cooling heat exchanger, Marine products pipeline system, acidic gas pipeline environment. heat exchanger in phosphoric acid production, evaporator, washing, dip tube, etc.
- 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
