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UNS K93600 / W.Nr.1.3912 Nickel Iron Alloy Good Ductility For Laser Component

China Machinery Metal Jiangsu Co., Ltd.

UNS K93600 / W.Nr.1.3912 Nickel Iron Alloy Good Ductility For Laser Component

Brand Name : CMMC

Model Number : As per specification and drawing

Certification : API, PED, ISO, AS etc.

Place of Origin : CMMC in CHINA

MOQ : Negotiable

Price : Negotiable

Payment Terms : D/P, L/C, T/T

Supply Ability : 300 metric tons per month

Delivery Time : 60-90 days

Packaging Details : Water prevent, seaworthy transport, mill's export standard packing

Material : UNS K93600, a binary iron-nickel alloy

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Nickel iron alloy 36 (UNS K93600, W.Nr. 1.3912) bar, tube, strip, wire, forging for laser component etc.

1 PRODUCT

Nickel iron alloy 36 (UNS K93600, W.Nr. 1.3912) semi-products for laser component etc.

Alloy 36 is available in following standard semi-finished forms:

Sheet

Delivery condition: Hot or cold rolled, heat treated, descaled or pickled

Strip

Delivery condition: Cold rolled, heat treated, pickled or bright annealed

Bar and Rod

Delivery condition: Forged, rolled, drawn, heat treated, oxidized, descaled or pickled, turned, peeled, ground or polished

Wire (profile, round, flats, square)

Delivery condition: Drawn bright, ¼ hard to hard, bright annealed in rings, containers, on spools and headstocks

Wire rod

Delivery condition: hot rolled (dia.5.5mm to 40mm)

Others

Other shapes and dimensions such as discs, rings, seamless pipes and forgings can be requested.

2 EQUIVALENT DESIGNATION

W.Nr. 1.3912, Ni36, Fe-Ni36(AFNOR), 1J36, 4J36, NILO alloy 36, VDM® Alloy 36, Pernifer 36, Invar 36

UNS K93600 (for thermostates), K93601 (for pressure vessels), K93602 (for chip removing process), K93603 (for alloys with low heat expansion)

3 OVERVIEW

Alloy 36 is a binary iron-nickel alloy with a particularly low heat expansion coefficient, whereby the levels of carbon and manganese as well as freedom of impurities are significant. Cold forming also reduces the heat expansion. Artificial aging with gradual heat treatment stabilizes the expansion coefficients in a selected temperature range.

Alloy 36 is characterized by:

◘ An extremely low expansion coefficient between -250°C (-418°F) and +260°C (500°F)

◘ Good ductility and toughness.

4 APPLICATION

Alloy 36 contains 36% nickel, mainly for controlled expansion and magnetic applications.

Typical applications are:

◘ Piping for storage and transport of liquefied gases

◘ Components for OLED screens

◘ Measuring and control devices for temperatures below 200°C (392°F), e.g. for thermostats

◘ Bushings for screw or rivet joints between various metals

◘ Bi-metal components and thermostatic bi-metals, where Alloy 36 is the passive component

◘ Forms for the production of carbon-fiber reinforced plastic (CFP), especially for the aerospace industry

◘ Frameworks for electronic control units in satellites and space travel down to -200°C (-328°F)

◘ Support elements for electro-magnetic lenses in laser control units

◘ Pendulum

◘ Components for the automotive industry

◘ Overhead power lines in an alloyed, age-hardenable variant

5 CHEMICAL COMPOSITION (wt%):

Ni Fe Cr Co Mn Si C P S Mo Cu Se
35.0-37.0 Balance ≤0.25 ≤0.50 ≤0.60 ≤0.30 ≤0.05 ≤0.015 ≤0.015 ≤0.50 ≤0.50 ≤0.50

6 PHYSICAL PROPERTY

Density at 20°C: 8.11 g/cm3 (0.293lb/in3)

Curie temperature: 230°C(446°F)

Modulus of elasticity in tension: 20.3 x 103 ksi (140 x 103MPa)

Table 6-1 Melting and inflection points

Alloy Melting point Inflection point
°C °F °C °F
Alloy 36 1430 2605 220 430

Table 6-2 Thermal conductivity at 20°C (68°F)

Alloy W/m°C Btu in/ft²h °F
Alloy 36 10 69.3

Table 6-3 Mean coefficient of thermal expansion

77 to 212°F 7.2 x 10-6 in/in/°F
77 to 302°F 7.5 x 10-6 in/in/°F
77 to 392°F 7.8 x 10-6 in/in/°F

Table 6-4 Thermal Conductivity

77°F 104 BTU-in/hr/ft²/°F
212°F 110.9 BTU-in/hr/ft²/°F
392°F 117.9 BTU-in/hr/ft²/°F
572°F 128.8 BTU-in/hr/ft²/°F

Table 6-5 Electrical resistivity

Temperature Microhm cm (ohm.circ mil/ft)
°C °F Alloy 36
20 68 80 (481)
100 212 86 (517)
200 392 97 (583)
300 572 105 (632)
400 752 111 (668)
500 932 117 (704)
600 1112 121 (728)

Table 6-6 Typical thermal expansion of Alloy 36

Temperature Range Total Expansion Mean Linear Coefficient
°C °F 10-3 10-6/°C 10-6/°F
-220 -396 -0.33 1.5 0.8
-120 -216 -0.16 1.3 0.7
20-100 68-212 0.12 1.5 0.8
20-150 68-302 0.26 2 1.1
20-200 68-392 0.47 2.6 1.4
20-250 68-482 0.8 3.5 1.9
20-300 68-572 1.54 5.5 3.1
20-350 68-662 2.37 7.2 4
20-400 68-752 3.19 8.4 4.7
20-450 68-842 4.01 9.3 5.2
20-500 68-932 4.85 10.1 5.6

7 METALLOGRAPHY

In the soft annealed condition, Alloy 36 has a cubic face-centered crystal structure.

8 CORROSION RESISTANCE

In a dry atmosphere, Alloy 36 is corrosion resistant at room temperature. In unfavorable conditions, for example a humid atmosphere, corrosion may occur on the surface.

9 MECHANICAL PROPERTIES

Table 9-1 Typical Mechanical Properties of Alloy 36 in soft annealed condition

Temperature Tensile Strength Yield Strength (0.2% Offset) Elongation on 50 mm (2 inch) Reduction of Area
°C °F MPa ksi MPa ksi % %
20 68 490 71 240 35 42 70
100 212 430 62 180 26 43 70
200 392 430 62 110 16 45 70
300 572 410 59 93 13 48 70
400 752 350 51 93 13 53 70
500 932 290 42 93 13 59 69
600 1112 210 30 77 11 68 67

Table 9-2 Typical mechanical properties of soft annealed rods following cold forming at room temperature

Cold forming 0.2 % yield strength Rp 0.2 Elongation at fracture A5
% MPa ksi %
0 292 42.4 40
23 645 93.5 15
39 679 89.5 13
53 702 102 12

Table 9-3 Hardness

Alloy Condition HV HRB
Alloy 36 Annealed 150 max. 80 max.
Full hard 220 min. 96 min.

10 WORKING INSTRUCTION

Alloy 36 can be easily formed both hot and cold and can also be machined. The workability is comparable to that of austenitic stainless steels.

Hot forming

Alloy 36 can be hot-formed in a temperature range between 1050 and 800°C (1922-1472°F) with subsequent rapid cooling down in water or air.

Cold forming

For cold forming, the workpiece should be in the annealed condition. Alloy 36 has a similar work hardening rate to austenitic stainless steels. This should be taken into account when selecting forming equipment and planning forming processes. Intermediate annealing is necessary for major cold forming work.

Heat treatment

The annealing should be performed at temperatures of 820 to 900°C (1580-1652°F), followed by air cooling. Compared with air cooling, water cooling following annealing results in a lower heat expansion coefficient.

Machining

Alloy 36 is preferably processed in the annealed condition. The machined characteristics of Alloy 36 are similar to those of austenitic stainless steels. Thanks to its high ductility, the chips resulting during machining tend to be string-like and tough, and can therefore result in fast wear to the cutting tool edge guides. The tool should be engaged at all times. A relatively low cutting speed should be used with a feed speed that is not too high. An adequate chip depth is important in order to cut below a previously formed work-hardened zone.

11 STANDARD SPECIFICATION

ASTM B388 Plate, strip

ASTM B603 Strip, wire

ASTM B753 Plate, sheet

ASTM F1684 Plate, sheet, bar, rod

DIN 1715 Sheet and strip

DIN 17470 Strip, wire

DIN 17745 Plate, sheet, bar, rod

SEW 385 Plate, sheet, bar, rod

AFNOR NF A54-301Composition

12 COMPETITIVE ADVANTAGE:

(1) More than 50 years experience of research and develop in high temperature alloy, corrosion resistance alloy, precision alloy, refractory alloy, rare metal and precious metal material and products.
(2) 6 state key laboratories and calibration center.
(3) Patented technologies.

(4) Ultra-purity smelting process: VIM + IG-ESR + VAR

(5) Excellent high performance.

13 BUSINESS TERM

Minimum order quantity Negotiable
Price Negotiable
Packing details Water prevent, seaworthy transport, mill’s export standard packing
Mark As per order
Delivery time 60-90 days
Payment terms T/T, L/C at sight, D/P
Supply ability 300 metric tons / Month


Product Tags:

heat resistant alloys

      

high performance alloys

      

UNS K93600 Nickel Iron Alloy

      
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