Our Products
Specialty Alloys

We work with a range of specialty alloys, including low-temperature alloys, babbitt, pewter, and solder.  

Specialty Alloy Categories

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Low Temp Alloys

Alloys & Industrial Equivalents

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Alloy Name Part #

Industry Equivalents
AIM AsarcoLo Cerro Indalloy Ostalloy
   Lead Rich Alloys
    LOW 158 BIPB27SN13CD10 70 158 CerroBEND 158 158
    LOW 158-190 BIPB38SN11CD9 70 158 CerroBEND 158 158
    LOW 174
    LOW 203 BIPB32SN15.5 Bi46 CerroSHIELD 42
    LOW 217-440 BIPB29CD15SB9 217-440 CerroMATRIX 217-440
    LOW 255 BIPB44.5 124 255 CerroBASE 255 255
   Lead-Free Alloys
    LOW 281 BISN42 138 281 CerroTRU 281 281
    LOW 281-338 BISN40 138/170 CerroCAST 281338

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LOW 158
Typical End Use Melt Temp:  158°F (70°C)
Bismuth  50%
Lead 26.7%
Tin 13.3%
Cadmium 10%
  •  Anchor bushings in drill jigs
  •  Internal or external support of delicate parts for machining
  •  Cores for spinning
  •  Fusible mandrels in filament winding.
  •  Fiberglas lamination
  •  Drop hammer and embossing dies
  •  Tube bending filler (up to 1-3/4″ diameter)
  •  Heat transfer medium in processing plastics, chemicals, etc. (up to 255°F)
  •  Shielding Blocks for Nuclear Medicine
INDUSTRY EQUIVALENTS: AIM 70, AsarcoLo 158, CerroBEND, Indalloy 158, Ostalloy 158

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LOW 158-190
Typical End Use Melt Temp:  158-190°F (70-88°C)
Bismuth 42.5%
Lead 37.7%
Tin 11.3%
Cadmium 8.5%
  • Toy soldier casting
  • Proof casting cavities (threads, dies, moulds, blind holes)
  • Duplicate patterns in foundry match-plate making
  • Supporting work pieces while machining
  • Spray coating wood patterns
  •  Masks for electroplating and spray-painting.
INDUSTRY EQUIVALENTS: AIM 70/88, AsarcoLo 158-190, CerroSAFE

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LOW 174
Typical End Use Melt Temp:  174°F (79°C)
Bismuth 57%
Tin 17%
Indium 26%
INDUSTRY EQUIVALENTS:

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LOW 203
Typical End Use Melt Temp:  203°F (95°C)
Bismuth 52.5%
Lead 32%
Tin 15.5%

  • Cadmium Free alternative for LOW 158 for Nuclear Medicine.
INDUSTRY EQUIVALENTS: AIM Bi46, CerroSHIELD, Indalloy 42

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LOW 158-190
Typical End Use Melt Temp:  158-190°F (70-88°C)
Bismuth 42.5%
Lead 37.7%
Tin 11.3%
Cadmium 8.5%
  • Toy soldier casting
  • Proof casting cavities (threads, dies, moulds, blind holes)
  • Duplicate patterns in foundry match-plate making
  • Supporting work pieces while machining
  • Spray coating wood patterns
  •  Masks for electroplating and spray-painting.
INDUSTRY EQUIVALENTS: AIM 70/88, AsarcoLo 158-190, CerroSAFE

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LOW 217-440
Typical End Use Melt Temp:  217-440°F (103-227°C)
Bismuth 48%
Lead 28.5%
Cadmium 14.5%
Antimony 9%
  • Originated by GE for anchoring punches in dies
  • Anchor non-moving parts in machinery; hold down bolts in concrete floors, locator parts in tooling docks
  • Split jaw chucks, jigs, fixtures
  • Metal forming dies, form blocks, joggle jaws
  • Repairing broken dies
  • Filling blowholes in castings.
INDUSTRY EQUIVALENTS: AsarcoLo 217-440, CerroMATRIX, Indalloy 217-440

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LOW 255
Typical End Use Melt Temp:  255°F (124°C)
Bismuth  55.5%
Lead 44.5%
  • Anchor cutlery handles, inserts in wood, metal parts in glass (Tuflex doors)
  • Make fusible spinning chucks
  • Mandrel for electroforms
  • Drop hammer dies, stretch form blocks
  • Moulds for plaster, plastics
  • Tube bending filler (over 1-3/4″ diameter)
  • Hydrodynamic forming, seamless fittings
  • Duplicate patterns in pottery and foundry
  • Liquid metal in autoclaves, heat-treating
  • Heat transfer (Up to 327 °F)
  • Shielding Blocks for Nuclear Medicine
INDUSTRY EQUIVALENTS: AIM 124, AsarcoLo 255, CerroBASE, Indalloy 255, Ostalloy 255

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LOW 281
Typical End Use Melt Temp:  281°F (138°C)
Bismuth 58%
Tin 42%
  • Anchor shafts in permanent magnet rotors, locator members in aircraft assembly fixtures, metal parts in glass, magnets in fixtures
  • Make nests for parts in jigs and dial feed stations
  • Cores for electroforming
  • Embossing dies, form blocks
  • Joggle jaws
  • Lost wax pattern dies
  • Duplicate foundry patterns
  • Tracer models in profiling
  • Moulds for plastics, sheet plastics, plastic teeth, prostethetic development
  • Potting electronic components
  • Laps for rifle barrels.
INDUSTRY EQUIVALENTS: AIM 138, AsarcoLo 281, CerroTRU, Indalloy 281, Ostalloy 281

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LOW 281
Typical End Use Melt Temp:  281°F (138°C)
Bismuth 58%
Tin 42%
  • Anchor shafts in permanent magnet rotors, locator members in aircraft assembly fixtures, metal parts in glass, magnets in fixtures
  • Make nests for parts in jigs and dial feed stations
  • Cores for electroforming
  • Embossing dies, form blocks
  • Joggle jaws
  • Lost wax pattern dies
  • Duplicate foundry patterns
  • Tracer models in profiling
  • Moulds for plastics, sheet plastics, plastic teeth, prostethetic development
  • Potting electronic components
  • Laps for rifle barrels.
INDUSTRY EQUIVALENTS: AIM 138, AsarcoLo 281, CerroTRU, Indalloy 281, Ostalloy 281

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LOW 281-338
Typical End Use Melt Temp:  281-338°F (138-170°C)
Bismuth 60%
Tin 40%
  • Parallels LOW 281 in its end uses
  • Electroforming mandrels, lost wax pattern dies due to greater dimensional accuracy
  • Holding jet turbine engine blades for machining.
INDUSTRY EQUIVALENTS:  AIM 138/170, CerroCAST, Ostalloy 281338

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Eutectics Non-Eutectics
Properties Low Low Low Low Low Low
158 255 281 158-190 217-440 281-338
Melting Temperature (F) 158 255 281 165 240 302
Range F 158-158 255-255 281-281 158-190 217-440 281-338
Yield Temp 158 255 281 162.5 240 302
Tensile Strength Lbs/In2 5990 6400 8000 5400 13000 8000
%Elongation in slow Loading 200 60-70 200 220 <1% 200
Brinell Hardness No. 9.2 10.2 22 9 19 22
*Specific Heat – Liquid .040 .042 .045 .040 .040 .047
*Specific Heat – Solid .040 .03+ .045 .040 .045 .047

*Latent Heat – Fusion Btu/Lb.

 14 7.2 20 10 – 22

Conductivity (Electrical)
Compared with Pure Copper

 4% 3% 4.5% 4% 3.2% 4.6%

*Maximum Load –
30 Seconds Lbs/In2

 10000 8000 15000 9000 16000 15000

*Maximum Load –
5 Minutes Lbs/In2

 4000 4000 9000 3800 10000 9500

*Safe Load Sustained –
Lbs/In2

 300 300 500 300 300 50
  • *Approximate

Eutectics

 Non Eutectics

Growth/Shrinkage Time after Casting

 Low Low Low Low Low Low
158 255 281 158-190 217-440 281-338
2 Minutes +.0025 -.0008 +.0007 -.0004 +.0008 -.0001
6 Minutes +.0027 -.0011 +.0007 -.0007 +.0014 -.0001
30 Minutes +.0045 -.0010 +.0006 -.0009 +.0047 -.0001
1 Hour +.0051 -.0008 +.0006 .0000 +.0048 -.0001
2 Hours +.0051 -.0004 +.0006 +.0016 +.0048 -.0001
5 Hours +.0051 .0000 +.0005 +.0018 +.0049 -.0001
7 Hours +.0051 +.0001 +.0005 +.0019 +.0050 -.0001
10 Hours +.0051 +.0003 +.0005 +.0019 +.0050 -.0001
1 Day +.0051 +.0008 +.0005 +.0022 +.0051 -.0001
4 Days +.0051 +.0015 +.0005 +.0025 +.0055 -.0001
8 Days +.0051 +.0019 +.0005 +.0025 +.0058 -.0001
21 Days +.0051 +.0022 +.0005 +.0025 +.0061 -.0001
  • Cumulative Growth and Shrinkage, Inch per Inch Compared to Cold Mold Dimensions.
  • Test Bar 2″ x 2″ x 10″.

White Metal Bearing Alloys (Babbitt Metal) – Lead and Tin Based

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Dimensions10-3/4″ x 2″ x 1-1/4″
(L x W x H)26″ x 2″ x 1-1/2″
(L x W x H)17-1/2″ x 4″ x 3-1/2″
(L x W x H)

Bar Shape Ingot Margash Pig
Pure Lead 10 LB 25 LB 55 LB
Pure Tin 6-1/2 LB 16 LB 35 LB

Tin-Based Alloys

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Marine 11D SNSB5CU4
No. 1 (ASTM #1) SNSB4.5CU4.5
Marine 11R SNSB7.75CU2.75
Nickel Genuine (ASTM #2) SNSB7.5CU3.5
Marine 11 SNSB5.75CU5.25
Diesel Special SNSB6.75CU5.5
No. 11 (ASTM #11) SNSB6.75CU5.75
SAE 11 SNSB7.5CU6.5
Imperial Genuine SNSB7CU7
Turbine SNSB7CU8
Royal Amature SNSB8.25CU8
Super Tough (ASTM #3) SNSB8CU8

Lead-Based Alloys

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No. 13 (ASTM #13) PBSN6SB10
Mill Anchor PBSN5SB12
Durite (ASTM #15) PBSN1SB16
Star PBN5.25SB14
Silvertone PBSN2SB18
Royal (ASTM #8) PBSN5SB15
Heavy Pressure (ASTM #7) PBSN10SB15
Special Sawguide PBSN10SB19

Tin-Based Alloys – Chemical Composition (%) Chart

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INDUSTRY NAME ASTM B23 Sn
(Tin)		 Sb
(Antimony)		 Cu
(Copper)		 Pb
(Lead)
Marine 11 D – 90.0 – 92.0 4.5 – 5.5 3.5 – 4.5 0.35 (Max)
No. 1 Grade 1 90.0 – 92.0 4.0 – 5.0 4.0 – 5.0 0.35 (Max)
Marine 11R – 89.0 – 89.5 7.5 – 8.5 2.5 – 3.0 0.35 (Max)
Nickel Genuine Grade 2 88.0 – 90.0 7.0 – 8.0 3.0 – 4.0 0.35 (Max)
Marine 11 – 88.0 – 90.0 5.5 – 6.0 5.0 – 5.5 0.35 (Max)
4X Royal Nickel Genuine – 87.5 – 89.5 7.25 – 7.75 3.25 – 3.75 0.35 (Max)
Diesel Special – 87.5 – 88.0 6.5 – 7.0 5.0 – 6.0 0.35 (Max)
No. 11 Grade 11 86.0 – 89.0 6.0 – 7.5 5.0 – 6.5 0.35 (Max)
SAE 11 – 85.0 – 87.0 7.0 – 8.0 6.0 – 7.0 0.35 (Max)
Imperial Genuine – 85.0 – 87.0 6.5 – 7.5 6.5 – 7.5 0.35 (Max)
Turbine – 84.0 – 86.0 6.5 – 7.5 7.5 – 8.5 0.35 (Max)
Royal Armature – 83.5 – 84.0 8.0 – 8.5 7.5 – 8.5 0.35 (Max)
Super Tough Grade 3 83.0 – 85.0 7.5 – 8.5 7.5 – 8.5 0.35 (Max)

Maximum Allowable Impurities:      Fe=0.08, As=0.10, Bi=0.08, Zn=0.005, Al=0.005, Cd=0.05

Lead-Based Alloys – Chemical Composition (%) Chart

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INDUSTRY NAME ASTM B23 Sn
(Tin)		 Sb
(Antimony)		 Pb
(Lead)		 As
(Arsenic)
No. 13 Grade 13 5.5 – 6.5 9.5 – 10.5 Balance 0.25 (Max)
Mill Anchor – 4.0 – 6.0 11.5 – 12.5 Balance 0.25 (Max)
Durite Grade 15 0.8 – 1.2 14.5 – 17.5 Balance 0.8 – 1.4
Star – 5.0 – 5.5 13.5 – 14.5 Balance 0.30 – 0.60
Silverstone – 1.0 – 3.0 17.5 – 18.5 Balance 0.25 (Max)
Royal Grade 8 4.5 – 5.5 14.0 – 16.0 Balance 0.30 – 0.60
Heavy Pressure Grade 7 9.3 – 10.7 14.0 – 16.0 Balance 0.30 – 0.60
Special Sawguide – 9.0 – 11.0 18.5 – 19.5 Balance 0.25 (Max)

Maximum Allowable Impurities:     Cu=0.50, Fe=0.10, Bi=0.10, Zn=0.005, Al=0.005, Cd=0.05

In selecting the proper type of Babbitt for a particular job there are a number of
factors to take into consideration, the most import of which are as follows:

  1. Surface speed of the SHAFT
  2. Load bearing is required to carry

Secondly, but no less important, the following points must also be taken into account:

  1. Continuity of service
  2. Bonding possibilities
  3. Cooling facilities
  4. Lubrication
  5. Cleanliness
  6. Attention given to the bearings in question

There is no doubt that if a bearing is highly loaded in relation to its size, a high tin alloy is desirable; whereas for much slower speed work and less heavily loaded bearings, a lead-based one may be employed and is far more economical.

    1. Surface speed of the shaft: (The number of feet travelled per minute by the shaft circumferentially.)

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Pi = 3.1416

Formula:

 Pi x D x RPM = S D = Diameter of Shaft
12 RPM = Revolutions Per Minute
S = Surface speed of the Shaft

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Example:

 Determine the surface of a 2 inch diameter shaft going 1,400 RPM
Pi x D x RPM

= 3.1416 x 2 x 1,400 = 733.04 Ft/min

12 12
    1. Load Bearing is required to carry: (The weight which is being exerted through the combined weights of the shaft and any other direct weights on the shaft and measured in pounds per square inch.)

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W = Total weight carried by bearing

    Formula:

___W___

 = L I.D = Inside diameter of bearing

I.D x L.O.B.

 L = Load bearing required to carry
L.O.B = Length of Bearing

    Example:

 Determine the load on a bearing of a 2 inch I.D bearing,
5 inches long and carrying a weight of 3,100 lbs

_____W_____

 = 3,100 = 310 Lbs/sq.in

I.D x L.O.B.

    2 x 5

There are many formulas for standard grade babbitts but they fall into two main classifications:

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Babbitt Classification

 LIMITS
Surface Speeds
(# of Ft/min)		 LOAD
(Lbs/sq.in.)
MIN. MAX. MIN. MAX.
Tin-Based Babbitts 1,000 2,400 100 2,000
Lead Based Babbitts 100 1,000 100 500

Pewter Alloys

  • Any size or shape of pewter alloy product is available.
  • We can provide quantities all the way from large orders for production purposes, to small orders for the hobbyist or artist.
  • The low temperature melting point is perfect for various wooden molds or spin-casting purposes.
  • Our lead-free pewter and leaded pewter are commonly used for lapel pins, belt buckles, plaques, ornaments, costume jewelry, medals, medallions etc.

Alloys & Industry Equivalents

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Alloy Name Part # Industry Equivalents
AIM AsarcoLo Cerro Indalloy Ostalloy
   Lead Rich Alloys
    LOW 158 BIPB27SN13CD10 70 158 CerroBEND 158 158
   Lead-Free Alloys
    LOW 281 BISN42 138 281 CerroTRU 281 281
    LOW 281-338 BISN40 138/170   CerroCAST   281338

Alloys & Their Uses

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LOW 158
Typical End Use Melt Temp:  158°F (70°C)
Bismuth  50%
Lead 26.7%
Tin 13.3%
Cadmium 10%
  •  Anchor bushings in drill jigs
  •  Internal or external support of delicate parts for machining
  •  Cores for spinning
  •  Fusible mandrels in filament winding.
  •  Fiberglas lamination
  •  Drop hammer and embossing dies
  •  Tube bending filler (up to 1-3/4″ diameter)
  •  Heat transfer medium in processing plastics, chemicals, etc. (up to 255°F)
  •  Shielding Blocks for Nuclear Medicine
INDUSTRY EQUIVALENTS: AIM 70, AsarcoLo 158, CerroBEND, Indalloy 158, Ostalloy 158

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LOW 281
Typical End Use Melt Temp:  281°F (138°C)
Bismuth 58%
Tin 42%
  • Anchor shafts in permanent magnet rotors, locator members in aircraft assembly fixtures, metal parts in glass, magnets in fixtures
  • Make nests for parts in jigs and dial feed stations
  • Cores for electroforming
  • Embossing dies, form blocks
  • Joggle jaws
  • Lost wax pattern dies
  • Duplicate foundry patterns
  • Tracer models in profiling
  • Moulds for plastics, sheet plastics, plastic teeth, prostethetic development
  • Potting electronic components
  • Laps for rifle barrels.
INDUSTRY EQUIVALENTS: AIM 138, AsarcoLo 281, CerroTRU, Indalloy 281, Ostalloy 281

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LOW 281-338
Typical End Use Melt Temp:  281-338°F (138-170°C)
Bismuth 60%
Tin 40%
  • Parallels LOW 281 in its end uses
  • Electroforming mandrels, lost wax pattern dies due to greater dimensional accuracy
  • Holding jet turbine engine blades for machining.
INDUSTRY EQUIVALENTS:  AIM 138/170, CerroCAST, Ostalloy 281338
Environmentally-Friendly
We’re proud to supply solder products from AIM
Solder Products

Heat Exchange Products

We offer a full range of solder & flux products for Brass & Copper Heat Exchangers. We offer tin-lead and lead-free alloys in various forms such as ingot, wire, core wire, foils, fluxes, preforms, & solder reclamation services.

Spray Metallization

We offer Grade 2 Babbitt & 100% SN wires which provide an effective and uniform spray metallization. Our Babbitt wire exceeds ASTM B23 Grade 2 specification and all federal and legal guidelines for lead-free alloys.

Alloy Sheets

Solder Wire

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