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Precision cold rolled strip and foil

Membranes, snap domes and bursting discs

Membranes and bursting discs are used in a variety of applications. Material specifications are therefore extremely diverse. The main applications for the thin strips of Lamineries MATTHEY in this sector can be divided into three groups: pressure sensors, bursting discs and snap switches.

Precision strip used in membranes for pressure sensors must have a blemish-free surface, should be highly formable, absolutely impermeable, dimensional uniformity and corrosion-resistant to the ambient medium. Lamineries MATTHEY also offers solutions in the area of safety engineering. Application examples include bursting discs, decoupling systems to protect against explosion, flames and sparks, explosion pressure absorption systems and flame and detonation. The main characteristics of the thin strip and foil used in these applications are dimensional uniformity, corrosion resistance in the ambiant environment and constant mechanical properties. The airbag gas generator in an automobile which enables the bag to inflate in a fraction of a second in case of an accident is a good example for the application of such cold-rolled products. The disc which prevents overpressure must burst in a pre-defined fashion to enable a controlled deflation of the airbag, is an essential component which must be fully functioning during the whole life of the vehicle.

In the area of safety engineering and membranes for pressure sensors, Lamineries MATTHEY is one of the principal suppliers of precision strip and foil. Please find below a selection of alloys for this field of application:

SuperalloysTechnical file
Duratherm® 600 / 2.4781      Duratherm_v22E.pdf
Nickel and Nickel alloysTechnical file
Ni - Nickel 200 / 2.4068 / N02200     Nickel_v22E.pdf
Ni - 2.4061 / 2.4060 / 2.4066 / Nickel 201/200 / N02200 / N02201     Nickel_v22E.pdf
Ni - Nickel hohe Reinheit 99.8% / 2.4061 / N02201      Nickel_v22E.pdf
NiCr15Fe - (Inconel) Alloy 600 / ~ 2.4816 / N06600 
NiCr19Fe18.5Mo3 Alloy 718 (Inconel, Hastelloy) / N07718 / 2.4668     Alloy718_v22E.pdf
NiCr22Fe18Mo9 Alloy X (Inconel, Hastelloy) / N06002     All_X_C.pdf
NiCr22Mo9Fe5 - (Inconel) Alliage 625 / ~ 2.4856 / N06625 
NiCu30Fe - (Monel) Alloy 400 / 2.4360 / N04400 
NiMo16Cr15W - (Hastelloy) All. C-276 / 2.4819 / N10276     HastelloyC276_v22E.pdf
NiMo29Cr2Fe2 Hastelloy B-3 / N10675 / 2.4600 
Stainless steelsTechnical file
1.4401 - Stainless steel / X5CrNiMo17-12-2 / ~ AISI 316     1.4401-316_v22E.pdf
1.4404 - Stainless steel / X2CrNiMo17-12-2 / ~ AISI 316L     1.4404-316L_v22E.pdf
1.4435 - Stainless steel / X2CrNiMo18-14-3 / ~ AISI 316L     1.4435-316L_v22E.pdf
1.4571 - Stainless steel / X6CrNiMoTi17-12-2 / ~ AISI 316Ti     1.4571-316Ti_v22E.pdf
M 350 - Precipitation hardening stainless steel / S35000 / AISI 633  
Beryllium Copper and Beryllium NickelTechnical file
CuBe2 - Alloy 25 / C17200 / CW101C     CuBe2-All.25-P_v22E.pdf
CuBe2 - Alloy 190 mill hardened / C17200 / CW101C     CuBe-Alloy190_v22E.pdf
NiBe2 - Alloy 360 / N03360     NiBe-Alloy360_v22E.pdf
Coppers and low alloyed coppersTechnical file
Cu-ETP - E Cu 58 / Cu a1 (Cu99) / CW004A / C11000     Cu-ETP_22E.pdf
Cu-OF - OF-Cu / Cu c1 / CW008A / C10200     Cu-OF_v22E.pdf
Cu-OFE - OFE-Cu / C10100     Cu-OFE_v22E.pdf
Copper alloysTechnical file
CuNi12Zn24 - Nickel Silver (M12) / CW403J / ~ C75700     CuNi12Zn24_v22E.pdf
CuNi18Zn20 - Nickel Silver (M18) / CW409J / ~ C76400     CuNi18Zn20_v22E.pdf
Other specialtiesTechnical file
Alloy 902 (Thermelast®) / N09902 / ~ Ni-Span-C Alloy 902® 
Ta - Tantalum / R05200 
Ti - Titanium Grade 1 / 3.7025 / R50250     Titane-Gr1_v22E.pdf
Ti - Titanium Grade 2 / 3.7035 / R50400     Titane-Gr2_v22E.pdf

See also dimensional tolerances and material safety datasheet (MSDS) :

 

Mechanical strength, long life expectancy and high corrosion resistance play an important role in the design of snap switches (snap domes) which are increasingly used in key boards and control panels. The broad range of spring materials with narrowly defined chemical compositions offered by Lamineries MATTHEY allows the design of of snap domes with a practically constant force-deformation ratio across the working temperature range and which offer above standard life expectancy. Please find below a selection of those alloys we supply for this application:

Other alloys are also available. There is a list with all presently available alloys.

Stainless steelsTechnical file
1.4310 - Stainless steel / X10CrNi18-8 / ~ AISI 301     1.4310_v22E.pdf
1.4310.4 - Stainless steel / X10CrNi18-8 / ~ AISI 301     1.4310.4_v22E.pdf
Beryllium Copper and Beryllium NickelTechnical file
CuBe2 - Alloy 25 / C17200 / CW101C     CuBe2-All.25-P_v22E.pdf
CuBe2 - Alloy 190 mill hardened / C17200 / CW101C     CuBe-Alloy190_v22E.pdf
Copper alloysTechnical file
CuSn6 - Phosphor Bronze, 6% / CW452K / C51900     CuSn6_v22E.pdf
CuSn8 - Phosphor Bronze, 8% / CW453K / C52100     CuSn8_v22E.pdf
CuZn23Al3Co - Special Brass / CW703R / ~C68800     CuZn23Al3Co_v22E.pdf
Other specialtiesTechnical file
CuNi15Sn8 - BrushForm® 158 / ToughMet 3 / C72900     BrushForm158_v22E.pdf
CuNi15Sn8 - BrushForm® 158 mill hardened (Toughmet 3) / C72900     BrushForm158_v22E.pdf
Aluminium alloysTechnical file
AlMg3 - (Peraluman 300) / AW5754     Peraluman_v22E.pdf
AlMg4.5Mn (Peraluman 460) / AW-5083 / AA5083 

See also dimensional tolerances and material safety datasheet (MSDS) :

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