Saturday, May 11, 2013
Zirconium Copper Alloy Usage
Due to the extreme resistance to corrosion, This alloy may be utilized in future wiring for housing, alternators, generators, computers, electronics and other items. The use of this alloy may provide a very long term usage wiring that is fail proof.
Tuesday, August 14, 2012
Pure Metals and Minerals
Tantalum:
[1] Melting point=2,996*C
[2] very hard gray ductile metal
[3] d 16.69
[4] very resistant to chemical attack
[5] reacts with fluorine, chlorine, d2 on heating. At high temperatures absorbs
several times its volume of hydrogen. combines with nitrogen and carbon.
[6] platinum substitute
Silicon:
[1] silica is Quartz
[2] poor conductor of low frequency electricity
[3] d 25/4 2.33
[4] melting point: 1m410*C
[5] attacked by HF or HNO4 + HF. Soluble in molten alkali metals. Burns in Fl and
Chlorine
Silver:
[1] excellent conductor ofheat and low frequency electricity
[2] melting point: 960.5*C/ Boiling Point: 2,000*C
[3] d15 10.49
[4] inert to most acids, atmospheric oxygen. readily reacts wit dilute H2NO4 and
hot concentrated H2SO4
[5] has been used to purify drinking water due to toxicity to most lower forms of
life
Aluminum:
[1] non magnetic to lower frequency magnetism
[2] d 2.70
[3] melting point: 660*C/ boilimg Point: 2,327*C
Boron Carbide:
[1] abrasive
[2] hardness less than industrial diamonds but higher than silicon carbide
[3] moh's hardness: 9.3
[4] melting point: 2,350*C/ boiling point: 3,500*C
[5] black shiny colour
Borazon:
[1] boron nitride
[2] hardest substance known
[3] melting point: 3,000*C [amorphous modification]
[4] resistant to chemical attack
Pure Metals and Minerals
Tantalum:
[1] Melting Point: 2,996*C
[2] Boiling Point: 5,429*C
[3] very hard ductile material
[4]d 16.69
[5] very resistant to chemical attack
[6] reacts with fluorine, chlorine, d2 on heating. At high temperaturres absorbs
several hundred times its volume of hydrogen. combines with nitrogen and carbon.
[7] platinum substitute
Silicon:
[1] silica is quartz
[2] poor conductor of low frequency elrctricity
[3] d 25/4 2.33
[4] melting point: 1,410*C
[5] attacked by hydrogen fluoride. soluble in molten alkali metals. Burns in
fluorine and chlorine.
Silver:
[1] excellent conductor of low frequency electricity and heat
[2] melting point: 960.5*C
[3] boiling point: 2,000*C
[4] d15 10.49
[5] inert to most acids,atmospheric oxygen. readily reacts with dilute h2no4; but,
not concentrated h2so4.
[6] has been used to purify drinking water due to toxicity to most lower forms of
life.
Aluminum:
[1] non magnetic to lower frequency magnetism
[2] d 2.70
[3] melting point: 660*C
[4] boiling point: 2,327*C
Boron Carbide:
[1] abrasive
[2] hardness less than industrial diamonds; but, higher than silicon carbide
[3] moh's hardness: 9.3
[4] melting point: 2,350*C
[5] boiling point: 3,500*C
[6] black shiny colour
Borazon:
[1] hardest substance known
[2] melting oint: 3,000*C [amorphous modification]
[3] resistant to chemical attack
Tuesday, March 17, 2009
Superalloys/ Alloys
SUPERALLOYS/ALLOYS:
NITINOL:40-45% titanium/55-60% nickel 110k-124k t.s.[tensile strength rockwell:42-52
*TUNGSTEN ALLOY 15C: for percussion applcations subject to medium to heav impact
*ZIRCONIUM COPPER N-4 0.25 Zr/bal.Cu 3k T.S.[75*F] high strength and conductivity at high temperatures.
*ZIRCONIUM ATR: 0.5 Cu/0.5 Mo/bal. Zr 45k T.S.[at 600*f] corrosion resistant at high temperatures[from CO2] for nuclear reactors.
*LOIRE SP20: for exhaust valves,jet engine components/corrosion and heat resistant to 1000*c.
*RMI 6A-4V ELI:
for high pressure cryogenics
-320*F=220k T.S./-423*F=65k T.S./205k T.S.
Ti alloy
*STAUFFER 90Ta-10W:
cold drawn=160k T.S.
or flame barriers,rocket engine parts,nozzles
usefull in the temperature range of -200*F to 5200*F
*PROPLATINUM:
platinum substitute for corrosion resistance
*TURBISTON BRONZE:
55 CU/41 Zn/2 Ni/1 Al/0.84 Fe/0.16 Mn
for pistons,
highly resistant to sea water/also called a brass
*UDIMET 71:
0.05 C/18 Cr/18 Fe/3 Mo/5.2 Cb/1 Ti 0.06 Al/0.004 B/bal Ni
190k T.S.[70*F]/170k T.S.[1200*F]
-423*F to 1300*F
applications:for components of gas turbines,missile and booster assemblies
*UDIMET 625:
0.05 C/22 Cr/3 Fe/9 Mo/4 Cb/0.2 Ti/0.2 Al/bal. Ni
103k T.S.[1200*F]
good oxidation and corrosion resistance
high strength from cryogenic to 2000*F
*VIRGO 1:
for molten salt containers
type 410
corrosion resistant
most suitable as a coating
*SILVER BEARING COPPER 114:
electrical conductivity:100
*MAGNESIUM LA 142:
at 200 *F=15.3 T.S.
for armoured ordinance vehicles
*TUNGSTEN ALLOY 30H:
forparts subjected to extra heavy impact
*TUNGSTEN ALLOY 15C:
medium to heavy impact resistance
*NICKEL "C":
69k T.S.
best corrosion resistance to salt solutions
*SUPER RADIOMETAL:
58k T.S.
for magnetic shields/soft magnet/hgh permeability and low losses
*BERYLCO 717:
age hardened:145k T.S. min.
rockwell:c29
for piping,high velocity heat exchangers,hydrophone parts
high sea water corrosion resistance
*MOLYBDENUM PERMALLOY 4-79:
for high frequency-high pemeability-high resistance
81% Ni
*COVANDUR:
for electrical equipment,sonar,ultrasonic transducers
soft magnet/high magnetic saturation
*CUPRO-NICKEL 30% 715:
cold rolled 58k-90k T.S.
good corrosion resistance to high velocity salt water
for heat exchanger tubes and sheets
*CARBALOY 268:
490 T.S.
87.0 rockwell
high shock resistance for mining
*COMMERCIAL BRONZE 25:
90 Cu/10 Zn
for weather stripping
*CO-NETIC AA:
57k T.S.
for electrostaic shielding
*CO-NETIC B:
58k T.S.
for magnetic shielding
*ZURCO NO. 25:
25-30 Cr/0.01 C/bal. Fe
rustless steel
for continuous heat up to 2200*F
*HYFLUX ALNICO 4:
coercive force:1400 oersteds
residual induction:10,500 gausses
for straight field focusing devices,motors,spac age applications
permanent magnet/resists demagnification
*IMPHY IR:
for cutting tools,drills,lathes
high red hardness
*JOSYLIN SAINLESS TYPE 615:
140k T.S.
for jet engine parts
magnetic
*NICKEL VAC L-605:
55k T.S.[1500*F]
oxidation and corrosion resistance/high strength above 1600*F
for afterburners,igh temperature valves and springs
-------------------------------------------------------------------------------------------------
*NITINOL 55:
55% nickel/balanced titanium
120k T.S.
rockwell 50
*STAINLESS STEEL A:
260k T.S.
rockwell 50
*TITANIUM EP 90-10:
20k T.S.[70*F]/150k T.S.[800*F}
*TITANIUM 314A:
139k T.S.
*TITANIUM 371:
148k T.S.
for high temperature applications to 1000*F
*SUPERTHERM:
35 Ni/26 Cr/15 Co/5 W/1.6 Si/0.5 C/bal. Fe
75k T.S.
heat resistance up to 2300*F
*TUNGSTEN RHC:
4 Re/0.35 Hf/0.25 C/BAL. W
75 k T.S. minimal at 3500*F
high heat and oxidation resistance
*RHENIUM:
70 k T.S.
99.5% Re
for electroplating
*ZIRCONIUM COPPER 150:
99.83 % Cu/0.17% Zr
93% electrical conductivity
corrosion resistant
*HIDUMINIUM R.R. 56:
60k-72k T.S.
automobile connecting rods,Rolls Royce,supercharger motors
* Nitinol: [1] 40-45% Ti/ 55-60% ni [2] 110,000-124,000 T.S./ 40,000- 50,000 Y.S. [3] Rock A 42-45 [4] Nonmagnetic, corrosion resistant Nitinol 55 [1] 55 Ni/ bal Ti [2] 120,000 T.S./ 50,000 Y.S. [3]Rock A 50 [4] non magnetic, corrosion resistant Stainless steel A: [1] 260,000 T.S. [2] 510 brn [3] corrosion resistant Tantalum Bronze: [1] 698,700 T.S./ 44,000 Y.S. [2] corrosion resistant KYONKhm: [1] 368,000 T.S./ 248,000 Y.S. [2] up to 400*C service [3] 88 Rock AMCARB D-50: [1] 425,000 T.S. [2] 15 co/ 85 wc [3] A87 Rock [4] wear/ abrasion resistant ARNOX-1: [1] permanent magnet. Non conducting. non orienting Beryllium Malleable: [1] For x-ray windows [2] 99.8 Be/ 0.2Ti Carpenter Hy-Sat 48 FM; [1] ultrasonic transducer material [2] 0.04 C/ 0.80 Mn/ 0.40 Si/ 49.0 Co/ 1.9 V/ 0.20 Se/ bal. Fe Carprnter Stainless 304+B: [1] shielding for nuclear reactors [2] 100,000 T.S./ 50,000 Y.S. Carbaloy HM-1 Hevimet: [1] 300,000 T.S. [2] C25 Rock [3] 90% W/ 7.5% Ni/ 2.5 Co [4] radiation shielding. Vibration damping Rynalloy: [1] m-!211 [2] Ball socket/ joints in aircraft exhaust systems. [3] for use up to 1,800*F Sandavik 11R51: [1] 341,000 T.S. [2] For springs for instruments. High fatigue life and tensile Strength[T.S.] Scholler Masoy Superior: [1] 80,000 T.S. [2] B78 Rock [3] Type 316 Stainless Steel [4] For chemical plant equipment Semalloy No.A978: [1] melting range: 2,876*F-3,110*F [2] Au and Pt Semalloy No. 3900: [1] melting range: 5,425*F for M1729 [2] Ta SEmalloy No. 3910: [1] melting point: 5,756*F [2] Rh SGS Tantalum: [1] M-1624 [2] 11Ta + Yttrium [3] 300% stronger than tantalum at 1,650*C [4] used in electric/ electrical components, aerospace ,and nuclear systems Tizit FM: [1] M-1246 [2] Wc/ TiC/ TaC/ Co/ [3] For cutting tools and dies No. 1040 Alloy: [1] For electrical equipment. Magnetic alloy. Achorn T2 High Speed Alloy: [1] tungsten type high speed steel ACIPCO HK: [1] completely austentitic stainless. Service to 2,000*F APA MAS TITAN 80: [1] finish machining and boring alloys and superalloys. A.E.B. Stainless: [1] for razpor blades, surgical instruments. Corrosion resistant Aeralloy 23: [1] For electrical contacts. Resists arc corrosion AGMOLITE: [1] For electrical contacts for circuit breakers. A-l 18 NiCoMo[250]: [1] Rocket cases, aircraft landing gears Alcoa 5456: [1] For overhead cranes. ALCOLOY R 688: [1] Excellent corrosion resistance, high strength. [2] Forrelay springs and electric terminals. Allegheny A-286: [1] jet engine, supercharger parts, and after burners for jets. *Allegheny LUDLUM-LXX: [1] 454,000 bond strength [2] Type 1 high speed steel. High ed hardness Allegheny Type 203 EZ: [1] austentitic Stainless [2] Free cutting [3] 135,000-208,000 T.S. Alloy CB-7: [1] 60,800 Y.S. [2] high temperature applications. High temperature strength to 2,000*F Alloy L.T.C.: [1] For resistors. High electrical resistance Alloy W.6.: [1] For spark plug electrodes. Resists high temperature corrosion, ALL-PRO: [1] For overlay orbuildup on scrapers, loaders, dozer bits, blades, shovels, buckets. [2] good abrasion resistance ALMAR 20: [1] For bolts, cryogenic and high temperature equipment. [2] Maraging steel . Shock resistant [3] 253,000- 265,500 T.S. *ALNICO5: [1] cast permanent magnet material [2] M-60 for high energy *ALNICO v111: [1] For Focusing of elecxtron beams *ALNIFER: [1] for electron tubes Allegheny Z5-12S: [1] M-1. For stainless steel castings [2] Resists H2SO4/ HNO4/ Acetic acids [3] cast (0K T.S./ 40K Y.S. [4] 0.11 max C/ 22-26 Cr/ 12-14 Ni/ bal Fe Allegheny 88X: [1] M-1 [2] For large electrical transformers, switchboard parts [3] non magnetic. high electrical reesistivity [4] 0.2- 0.3 C/ 10-12.5 Mn/ 7- *.5 Ni/ Bal Fe *Allegheny Am 357: [1] M-1 [2] sheet 309K T.S./ 303K Y.S./ at 1,000*F= 158K T.S./ 141K Y.S. [3] For valves, pressure tanks, aircraft jet engine parts. [4] semi- austentitic Stainkess steel [5] 0.21- 0.26C/ 0.50- 1.25 Mn/ 13.5-14.5 Cr/ 4.0- 5.0 Ni/ 2.5- 3.25 Mo/ 0.07- 0.13N/ Bal Fe Allegheny LUDLUM 129: [1] M-1 [2] ht.tr. 322K T.S./ 265K Y.S. [3] For tools, bearings for high temperature applications. [4] Stainless. high corrosion resistant [5] 0.7 C/ 0.3 Mn/ 1.0 Si/ 12 Cr/ 5.25 Mo/ bal Fe Allegheny 2000: [1] M-1216 [2] For plating anodes [3] 100 NI Alloy W.5.: [1] m-121 [2] For high temperature corrosion resistant spark plug electrodes [3] 4 Si/ 0.5 Mn/ bal Ni ALLVAC 18-15B: [1] For neutron control rods, atomic energy uses. [2] Austenitic Stainless [3] 0.01C/ 18Cr/ 15Ni/ 0.8B/ bal Fe [4] M-1490 ALMET 17-7PH: [1] Ht.tr.[ heat treated] 244K-345K T.S./ 234K-340K Y.S. [2] For springs, cli[s, aircraft parts [3] Stainless. M-248 [4] 0.09 max C/ 17Cr/ 7Ni/ 0.75-1.25Al/ bal Fe
for high pressure cryogenics
-320*F=220k T.S./-423*F=65k T.S./205k T.S.
Ti alloy
*STAUFFER 90Ta-10W:
cold drawn=160k T.S.
or flame barriers,rocket engine parts,nozzles
usefull in the temperature range of -200*F to 5200*F
*PROPLATINUM:
platinum substitute for corrosion resistance
*TURBISTON BRONZE:
55 CU/41 Zn/2 Ni/1 Al/0.84 Fe/0.16 Mn
for pistons,
highly resistant to sea water/also called a brass
*UDIMET 71:
0.05 C/18 Cr/18 Fe/3 Mo/5.2 Cb/1 Ti 0.06 Al/0.004 B/bal Ni
190k T.S.[70*F]/170k T.S.[1200*F]
-423*F to 1300*F
applications:for components of gas turbines,missile and booster assemblies
*UDIMET 625:
0.05 C/22 Cr/3 Fe/9 Mo/4 Cb/0.2 Ti/0.2 Al/bal. Ni
103k T.S.[1200*F]
good oxidation and corrosion resistance
high strength from cryogenic to 2000*F
*VIRGO 1:
for molten salt containers
type 410
corrosion resistant
most suitable as a coating
*SILVER BEARING COPPER 114:
electrical conductivity:100
*MAGNESIUM LA 142:
at 200 *F=15.3 T.S.
for armoured ordinance vehicles
*TUNGSTEN ALLOY 30H:
forparts subjected to extra heavy impact
*TUNGSTEN ALLOY 15C:
medium to heavy impact resistance
*NICKEL "C":
69k T.S.
best corrosion resistance to salt solutions
*SUPER RADIOMETAL:
58k T.S.
for magnetic shields/soft magnet/hgh permeability and low losses
*BERYLCO 717:
age hardened:145k T.S. min.
rockwell:c29
for piping,high velocity heat exchangers,hydrophone parts
high sea water corrosion resistance
*MOLYBDENUM PERMALLOY 4-79:
for high frequency-high pemeability-high resistance
81% Ni
*COVANDUR:
for electrical equipment,sonar,ultrasonic transducers
soft magnet/high magnetic saturation
*CUPRO-NICKEL 30% 715:
cold rolled 58k-90k T.S.
good corrosion resistance to high velocity salt water
for heat exchanger tubes and sheets
*CARBALOY 268:
490 T.S.
87.0 rockwell
high shock resistance for mining
*COMMERCIAL BRONZE 25:
90 Cu/10 Zn
for weather stripping
*CO-NETIC AA:
57k T.S.
for electrostaic shielding
*CO-NETIC B:
58k T.S.
for magnetic shielding
*ZURCO NO. 25:
25-30 Cr/0.01 C/bal. Fe
rustless steel
for continuous heat up to 2200*F
*HYFLUX ALNICO 4:
coercive force:1400 oersteds
residual induction:10,500 gausses
for straight field focusing devices,motors,spac age applications
permanent magnet/resists demagnification
*IMPHY IR:
for cutting tools,drills,lathes
high red hardness
*JOSYLIN SAINLESS TYPE 615:
140k T.S.
for jet engine parts
magnetic
*NICKEL VAC L-605:
55k T.S.[1500*F]
oxidation and corrosion resistance/high strength above 1600*F
for afterburners,igh temperature valves and springs
-------------------------------------------------------------------------------------------------
*NITINOL 55:
55% nickel/balanced titanium
120k T.S.
rockwell 50
*STAINLESS STEEL A:
260k T.S.
rockwell 50
*TITANIUM EP 90-10:
20k T.S.[70*F]/150k T.S.[800*F}
*TITANIUM 314A:
139k T.S.
*TITANIUM 371:
148k T.S.
for high temperature applications to 1000*F
*SUPERTHERM:
35 Ni/26 Cr/15 Co/5 W/1.6 Si/0.5 C/bal. Fe
75k T.S.
heat resistance up to 2300*F
*TUNGSTEN RHC:
4 Re/0.35 Hf/0.25 C/BAL. W
75 k T.S. minimal at 3500*F
high heat and oxidation resistance
*RHENIUM:
70 k T.S.
99.5% Re
for electroplating
*ZIRCONIUM COPPER 150:
99.83 % Cu/0.17% Zr
93% electrical conductivity
corrosion resistant
*HIDUMINIUM R.R. 56:
60k-72k T.S.
automobile connecting rods,Rolls Royce,supercharger motors
* Nitinol: [1] 40-45% Ti/ 55-60% ni [2] 110,000-124,000 T.S./ 40,000- 50,000 Y.S. [3] Rock A 42-45 [4] Nonmagnetic, corrosion resistant Nitinol 55 [1] 55 Ni/ bal Ti [2] 120,000 T.S./ 50,000 Y.S. [3]Rock A 50 [4] non magnetic, corrosion resistant Stainless steel A: [1] 260,000 T.S. [2] 510 brn [3] corrosion resistant Tantalum Bronze: [1] 698,700 T.S./ 44,000 Y.S. [2] corrosion resistant KYONKhm: [1] 368,000 T.S./ 248,000 Y.S. [2] up to 400*C service [3] 88 Rock AMCARB D-50: [1] 425,000 T.S. [2] 15 co/ 85 wc [3] A87 Rock [4] wear/ abrasion resistant ARNOX-1: [1] permanent magnet. Non conducting. non orienting Beryllium Malleable: [1] For x-ray windows [2] 99.8 Be/ 0.2Ti Carpenter Hy-Sat 48 FM; [1] ultrasonic transducer material [2] 0.04 C/ 0.80 Mn/ 0.40 Si/ 49.0 Co/ 1.9 V/ 0.20 Se/ bal. Fe Carprnter Stainless 304+B: [1] shielding for nuclear reactors [2] 100,000 T.S./ 50,000 Y.S. Carbaloy HM-1 Hevimet: [1] 300,000 T.S. [2] C25 Rock [3] 90% W/ 7.5% Ni/ 2.5 Co [4] radiation shielding. Vibration damping Rynalloy: [1] m-!211 [2] Ball socket/ joints in aircraft exhaust systems. [3] for use up to 1,800*F Sandavik 11R51: [1] 341,000 T.S. [2] For springs for instruments. High fatigue life and tensile Strength[T.S.] Scholler Masoy Superior: [1] 80,000 T.S. [2] B78 Rock [3] Type 316 Stainless Steel [4] For chemical plant equipment Semalloy No.A978: [1] melting range: 2,876*F-3,110*F [2] Au and Pt Semalloy No. 3900: [1] melting range: 5,425*F for M1729 [2] Ta SEmalloy No. 3910: [1] melting point: 5,756*F [2] Rh SGS Tantalum: [1] M-1624 [2] 11Ta + Yttrium [3] 300% stronger than tantalum at 1,650*C [4] used in electric/ electrical components, aerospace ,and nuclear systems Tizit FM: [1] M-1246 [2] Wc/ TiC/ TaC/ Co/ [3] For cutting tools and dies No. 1040 Alloy: [1] For electrical equipment. Magnetic alloy. Achorn T2 High Speed Alloy: [1] tungsten type high speed steel ACIPCO HK: [1] completely austentitic stainless. Service to 2,000*F APA MAS TITAN 80: [1] finish machining and boring alloys and superalloys. A.E.B. Stainless: [1] for razpor blades, surgical instruments. Corrosion resistant Aeralloy 23: [1] For electrical contacts. Resists arc corrosion AGMOLITE: [1] For electrical contacts for circuit breakers. A-l 18 NiCoMo[250]: [1] Rocket cases, aircraft landing gears Alcoa 5456: [1] For overhead cranes. ALCOLOY R 688: [1] Excellent corrosion resistance, high strength. [2] Forrelay springs and electric terminals. Allegheny A-286: [1] jet engine, supercharger parts, and after burners for jets. *Allegheny LUDLUM-LXX: [1] 454,000 bond strength [2] Type 1 high speed steel. High ed hardness Allegheny Type 203 EZ: [1] austentitic Stainless [2] Free cutting [3] 135,000-208,000 T.S. Alloy CB-7: [1] 60,800 Y.S. [2] high temperature applications. High temperature strength to 2,000*F Alloy L.T.C.: [1] For resistors. High electrical resistance Alloy W.6.: [1] For spark plug electrodes. Resists high temperature corrosion, ALL-PRO: [1] For overlay orbuildup on scrapers, loaders, dozer bits, blades, shovels, buckets. [2] good abrasion resistance ALMAR 20: [1] For bolts, cryogenic and high temperature equipment. [2] Maraging steel . Shock resistant [3] 253,000- 265,500 T.S. *ALNICO5: [1] cast permanent magnet material [2] M-60 for high energy *ALNICO v111: [1] For Focusing of elecxtron beams *ALNIFER: [1] for electron tubes Allegheny Z5-12S: [1] M-1. For stainless steel castings [2] Resists H2SO4/ HNO4/ Acetic acids [3] cast (0K T.S./ 40K Y.S. [4] 0.11 max C/ 22-26 Cr/ 12-14 Ni/ bal Fe Allegheny 88X: [1] M-1 [2] For large electrical transformers, switchboard parts [3] non magnetic. high electrical reesistivity [4] 0.2- 0.3 C/ 10-12.5 Mn/ 7- *.5 Ni/ Bal Fe *Allegheny Am 357: [1] M-1 [2] sheet 309K T.S./ 303K Y.S./ at 1,000*F= 158K T.S./ 141K Y.S. [3] For valves, pressure tanks, aircraft jet engine parts. [4] semi- austentitic Stainkess steel [5] 0.21- 0.26C/ 0.50- 1.25 Mn/ 13.5-14.5 Cr/ 4.0- 5.0 Ni/ 2.5- 3.25 Mo/ 0.07- 0.13N/ Bal Fe Allegheny LUDLUM 129: [1] M-1 [2] ht.tr. 322K T.S./ 265K Y.S. [3] For tools, bearings for high temperature applications. [4] Stainless. high corrosion resistant [5] 0.7 C/ 0.3 Mn/ 1.0 Si/ 12 Cr/ 5.25 Mo/ bal Fe Allegheny 2000: [1] M-1216 [2] For plating anodes [3] 100 NI Alloy W.5.: [1] m-121 [2] For high temperature corrosion resistant spark plug electrodes [3] 4 Si/ 0.5 Mn/ bal Ni ALLVAC 18-15B: [1] For neutron control rods, atomic energy uses. [2] Austenitic Stainless [3] 0.01C/ 18Cr/ 15Ni/ 0.8B/ bal Fe [4] M-1490 ALMET 17-7PH: [1] Ht.tr.[ heat treated] 244K-345K T.S./ 234K-340K Y.S. [2] For springs, cli[s, aircraft parts [3] Stainless. M-248 [4] 0.09 max C/ 17Cr/ 7Ni/ 0.75-1.25Al/ bal Fe
Pure Metals
PURE METALS
*TANTALUM:
MP: 2996*C
BP:5429*C
D:16.69
very resistant to chemical attack
reacts with fluorine,chlorine,oxygen[on heating],at high temperatures,absorbs several times its
volume of hydrogen;combines with nitrogen and carbon
*SILICON:
silicon dioxide is quartz
poor conductor of electricity
D 25/4 2.33
M.P.:1410*c
attacked by hydrogen fluoride or HNO4 +HF;soluble in molten alkali metals;burns in Fl/Cl
*BORAZON:
boron nitride
hardest substance known
M.P.:3000*c[amorphous modification]
resistant to chemical attack
*TANTALUM:
MP: 2996*C
BP:5429*C
D:16.69
very resistant to chemical attack
reacts with fluorine,chlorine,oxygen[on heating],at high temperatures,absorbs several times its
volume of hydrogen;combines with nitrogen and carbon
*SILICON:
silicon dioxide is quartz
poor conductor of electricity
D 25/4 2.33
M.P.:1410*c
attacked by hydrogen fluoride or HNO4 +HF;soluble in molten alkali metals;burns in Fl/Cl
*BORAZON:
boron nitride
hardest substance known
M.P.:3000*c[amorphous modification]
resistant to chemical attack
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