 |
|
|
|
Είμαι Online Chat Now
Πιστοποίηση
Invar 36 (4J36) Alloy Tube - Ultra-Low CTE for Precision Instruments
|
Λεπτομέρειες:
Πληρωμής & Αποστολής Όροι:
|
Λεπτομερής Περιγραφή Προϊόντος
| Material: | 4J36 | Supply Type: | tube |
|---|---|---|---|
| Color: | Primary Color | Surface: | Bright and Smooth |
| Επισημαίνω: | 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 |
Στοιχεία επικοινωνίας
Ohmalloy Material Co.,Ltd
Υπεύθυνος Επικοινωνίας: Mr. Qiu
Τηλ.:: +8613795230939
Στείλετε το ερώτημά σας απευθείας σε εμάς
Περισσότεροι χαμηλά κράματα επέκτασης
-
Χαμηλό κράμα 1,2 νικελίου σιδήρου επέκτασης Invar Φε-Ni36 4J36 ppm°C αντιδιαβρωτικό
-
γυαλί 4J29 Kovar FeNi29Co17 που σφραγίζει τα χαμηλά κράματα επέκτασης
-
Χαμηλό γυαλί λουρίδων κραμάτων 4J29 επέκτασης Kovar - - σφραγίδα μετάλλων για τις λάμπες φωτός
-
4J42 Invar Alloy Strip for Glass Sealing ASTM F30 Certified
-
ΔΙΝ.1.3981 Kovar Wire Dia:0.3mm KV-1 για σφραγίδες γυαλιού
-
Χαμηλό κράμα 30mmx1.5mmx1500mm 4J29 FeNiCo Kovar σωλήνων κραμάτων επέκτασης ακρίβειας