Both ASTM B161 ASME SB 161 N02200 Alloy 200 and 201 offer corrosion resistance in reducing and neutral media as well as in oxidizing atmospheres provided that the oxidizing media allows the formation of a passive oxide film. This oxide film accounts for the materials excellent resistance in caustic environments. Corrosion rates in both marine and rural atmospheres are very low.
Alloy 200 Pipe N02200, N02201,Ni200, Ni201, N2, N4, N6 Tubing
Nickel Alloy 200 N02200 DIN 17751 2.4066 NA11 Ni 99,2 are solid solution strengthened, commercially pure wrought materials with good mechanical properties over a wide range of temperature and excellent corrosion resistance, in particular hydroxides. Nickel 201 was a modification of 200 to control carbon (.02 max) which keeps it from being embrittled by intergranular precipitate at temperature of 600° F to 1400° F. Typically, the elemental restrictions of both, Nickel Alloy 200 and nickel 201, dual-certified chemistry resulting in a single alloy with the desired characteristics of both alloys. 2.4066 Equal to Nickel Alloy 200.
Both ASTM B161 ASME SB 161 N02200 Alloy 200 and 201 offer corrosion resistance in reducing and neutral media as well as in oxidizing atmospheres provided that the oxidizing media allows the formation of a passive oxide film. This oxide film accounts for the materials excellent resistance in caustic environments. Corrosion rates in both marine and rural atmospheres are very low.
ASTM B161 B163 Alloy 200 N02200 Chemical Composition, %
| Ni | Fe | Cu | C | Mn | S | Si |
| 99.0 min | 0.40 max | 0.25 max | 0.15 max | 0.35 max | 0.01 max | 0.35 max |
DIN 17744 17750 17752 17753 2.4066 Chemical Composition, %
| Ni+Co | Fe | Cu | C | Mn | S | Si | Mg | Ti |
| 99.2 min | 0.40 max | 0.25 max | 0.10 max | 0.35 max | 0.005 max | 0.25 max | 0.15 max | 0.10 max |
Nickel 201 ( ASTM B161 UNS N02201 ) Chemical Composition,%
| Ni | Fe | Cu | C | Mn | S | Si |
| 99.0 min | 0.40 max | 0.25 max | 0.02 max | 0.35 max | 0.01 max | 0.35 max |
| Material No. | DIN 17744 17750 17751 17752 17753 2.4066 |
| EN symbol (short) | Ni 99.2 |
| UNS | ASTM B160 B161 B162 B163 B366 B564 B704 B705 B725 N02200 |
| B.S. | BS 3072 BS 3073 BS 3074 BS 3075 BS 3076 NA11 |
| Alloy | Nickel Alloy 200 |
| Standards | DIN 17744 17750 17751 17752 17753 2.4066 |
| Standards | Desciption |
| ASTM B160 | Standard Specification for Nickel Rods and Bars |
| ASTM B161 | Standard Specification for Nickel Seamless Pipes and Tubes |
| ASTM B162 | Standard Specifications for nickel sheet metal and ribbons |
| ASTM B163 | Standard Specifications for seamless nickel and nickel ally. condensers and heat-exchanger tubes |
| ASTM B704 | Standard Specification for Welded Alloy Tubes |
| ASTM B366 | Standard Specification for Factory-Made Wrought nickel and nickel alloy fittings |
| ASTM B564 | Standard Specification for Nickel Alloy Forging |
| ASTM B705 | Standard Specification for Nickel-Alloy Welded Pipe |
| ASTM B725 | Standard Specification for Welded Nickel and Nickel Cooper Alloy Pipe |
The resistance of ASTM B161 B163 ASME SB161 SB163 N02200 to corrosion by distilled and natural waters is excellent. Plus it also gives excellent service in flowing sea water even at high velocity, but in stagnant or very low-velocity seawater severe local attack may occur under fouling organisms or other deposits. In hot water systems where the steam contains carbon dioxide and air in certain proportions, corrosion rates will be initially high but will decrease with time if conditions favor the formation of a protective film.
Alloy 200 Standard:
DIN 17751 2.4066 DIN 17744 17750 17752 17753 2.4066
ASTM B161 B163 ASME SB161 SB163 N02200
BS 3072 3073 3074 3075 3076 NA11
Anticorrosion environment: Many kinds of organic solution/alkalinity liquids. Apply to the production soda water, the chlorine, the salty pedantry, the soap, Yuan wash the medicinal preparation, the food industry
ASTM B161 B163 ASME SB161 SB163 N02200 is normally limited to service at temperatures below 600 °F. At higher temperatures Nickel Alloy 200 products can suffer from graphitization which can result in severely compromised properties. When operating temperatures are expected to exceed 600 °F, carbon content becomes critical. The lower carbon content of Nickel 201 makes the material resistant to graphitization and therefore less subject to embrittlement. Nickel Alloy 200 & 201 are approved for construction of pressure vessels and components under ASME Boiler and Pressure Vessel Code Section VIII, Division 1. Nickel Alloy 200 is approved for service up to 600 °F while Nickel 201 is approved for service up to 1230 °F. Melting point is 2615-2635 °F.
ASTM B161 B163 ASME SB161 SB163 N02200 is unalloyed nickel with excellent corrosion resistance and excellent stability against alkaline media and good mechanical properties in a broad temperature range. Shows good corrosion resistance under reducing conditions, e.g. hydrofluoric acid and hydrochloric acid. Shows good stability under oxidizing conditions (by creating a surface protection film). Material 2.4066 (Nickel Alloy 200) is used in the chemical industry and petrochemical industry.
What are the Characteristics of Alloy 200 N02200?
Highly resistant to various reducing chemicals
Excellent resistance to caustic alkalies
High electrical conductivity
Excellent corrosion resistance to distilled and natural waters
Resistance to neutral and alkaline salt solutions
Excellent resistance to dry fluorine
Widely used to handle caustic soda
Good thermal, electrical and magnetostrictive properties
Offers some resistance to hydrochloric acids and sulfuric acids at modest temperatures and concentrations