 |
|
|
|
Im Online Czat teraz
Orzecznictwo
Invar 36 (4J36) Alloy Tube - Ultra-Low CTE for Precision Instruments
|
Szczegóły Produktu:
Zapłata:
|
Szczegółowy opis produktu
| Material: | 4J36 | Supply Type: | tube |
|---|---|---|---|
| Color: | Primary Color | Surface: | Bright and Smooth |
| Podkreślić: | Invar 36 alloy tube,low CTE alloy tube,precision instrument alloy tube |
||
Ultra-Low CTE Invar 36 (Ni36) Alloy - 1.6*10^(-6)/°C Expansion Control ASTM F1684 Certified for Metrology & Cryogenic Systems
4J36 (Invar), also known generically as FeNi36 (64FeNi in the US), is a nickel–iron alloy notable for its uniquely low coefficient of thermal expansion (CTE or α).
4J36 (Invar) is used where high dimensional stability is required, such as precision instruments, clocks, seismic creep gauges, television shadow-mask frames, valves in motors, and antimagnetic watches. In land surveying, when first-order (high-precision) elevation leveling is to be performed, the Level staff (leveling rod) used is made of Invar, instead of wood, fiberglass, or other metals. Invar struts were used in some pistons to limit their thermal expansion inside their cylinders.
Normal composition%
| Ni | 35~37.0 | Fe | Bal. | Co | - | Si | ≤0.3 |
| Mo | - | Cu | - | Cr | - | Mn | 0.2~0.6 |
| C | ≤0.05 | P | ≤0.02 | S | ≤0.02 |
Typical Physical properties
| Density (g/cm3) | 8.1 |
| Electrical resistivity at 20℃(Ωmm2/m) | 0.78 |
| Temperature factor of resistivity(20℃~200℃)X10-6/℃ | 3.7~3.9 |
| Thermal conductivity, λ/ W/(m*℃) | 11 |
| Curie point Tc/ ℃ | 230 |
| Elastic Modulus, E/ Gpa | 144 |
Coefficient of expansion
| θ/℃ | α1/10-6℃-1 | θ/℃ | α1/10-6℃-1 |
| 20~-60 | 1.8 | 20~250 | 3.6 |
| 20~-40 | 1.8 | 20~300 | 5.2 |
| 20~-20 | 1.6 | 20~350 | 6.5 |
| 20~-0 | 1.6 | 20~400 | 7.8 |
| 20~50 | 1.1 | 20~450 | 8.9 |
| 20~100 | 1.4 | 20~500 | 9.7 |
| 20~150 | 1.9 | 20~550 | 10.4 |
| 20~200 | 2.5 | 20~600 | 11.0 |
Typical Mechanical properties
| Tensile Strength | Elongation |
| Mpa | % |
| 641 | 14 |
| 689 | 9 |
| 731 | 8 |
Temperature factor of resistivity
| Temperature range, ℃ | 20~50 | 20~100 | 20~200 | 20~300 | 20~400 |
| aR/ 103 *℃ | 1.8 | 1.7 | 1.4 | 1.2 | 1.0 |
The heat treatment process
| The heat treatment process | |
| Annealing for stress relief | Heated to 530~550℃ and hold 1~2 h. Cold down |
| annealing | In order to eliminate hardening, which be bring out in cold-rolled, cold drawing process. Annealing needs heated to 830~880℃ in vacuum,hold 30 min. |
| The stabilization process |
1) In protective media and heated to 830 ℃, hold 20min. ~ 1h, quench 2) Due to the stress generated by quenching, heated to 315℃,hold 1~4h. |
| Precautions |
1) Can not be hardened by heat treatment 2) Surface treatment can be sandblasting, polishing or pickling. 3) Alloy can be used 25% hydrochloric acid pickling solution at 70 ℃ to clear oxidized surface |
Szczegóły kontaktu
Ohmalloy Material Co.,Ltd
Osoba kontaktowa: Mr. Qiu
Tel: +8613795230939
Wyślij zapytanie bezpośrednio do nas
Jeszcze Low Expansion Alloys
-
Invar Fe-Ni36 4J36 Stop niklu o niskiej rozszerzalności Żelazo 1,2 ppm ° C Antykorozyjny
-
4J29 Kovar FeNi29Co17 Uszczelniające szkło stopy o niskiej rozszerzalności
-
Kovar Low Alloy 4J29 Strip Strip - Metalowa uszczelka do żarówek
-
4J42 Invar Alloy Strip for Glass Sealing ASTM F30 Certified
-
DIN.1.3981 Kovar Wire Dia:00,3 mm KV-1 dla uszczelnień szklanych
-
Precyzyjna rura ze stopów o niskiej rozszerzalności Stop FeNiCo Kovar 30 mm x 1,5 mm x 1500 mm 4J29