hot dip tinning services, pure tin, tin lead, tin silver coatingstin silver coatings, tin copper, tin bronze, tin brassslitting services, tin silver, tinned copper, tinned bronze, tinned brass Marjan Inc. Marjan Inc.
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Tentative Specification For Hot Dip Tin Coatings

Para. 1.0

Coating Types
1.1 Pure Tin
1.1a HALT Tin-Silver
1.2 60/40 (Tin-Lead)

Para. 2.0

Coating Applications Mechanical Wipe Type 1.1 - 1.2 Air Wipe Leveled Type 1.1, 1.1a - 1.2

Para. 3.0 Coating Thickness Range

3.1 Mechanical 80 micro-inches maximum for Type 1.1 - 1.2
3.1a 20-80 Micro-inch Hot Air Wipe
3.1b Thickness of IMC Layer less than 1 micrometer when initially coated
3.2 Hot Air Level Intermediate:
Range is 50-150 micro-inch for type 1.1, 1.1a - 1.2
3.3 Hot Air Level Hevi-Kote:
Range is 100-300 micro-inch for type 1.1, 1.1a - 1.2
3.4 Hot Air Level Hevi-Kote:
Range is 300 micro-inch minimum for type 1.1, 1.1a - 1.2
3.5 Phase 2 (Task Force) would set standard covering all aspects including thickness requirements to tolerances & testing procedures.

Para. 4.0 Standard Test for Porosity in Coatings

Coating Types 1.1, 1.1a Coating Thickness Commercial range up to 80 micro-inches A.S.T.M. Specification - B809-90-B246 There are no A.S.T.M. specs in print, covering other than what is mentioned above.

Para. 5.0 Thickness Measurement

5.1 X-Ray Fluorescence/Beta Back Scatter
5.2 In case of dispute, X-Ray Fluorescence will dominate.
1. Commercial Coatings-Mechanical Wipe

Strip Gauge
.003"-.025"
.026"-.032"
.033"-.045"
.046"-.050"
.051"-.062"

Strip Width
3.00" to 13.500"
3.00" to 12.500"
3.00" to 10.00"
3.00" to 8.00"
3.00" to 5.00"

Coating Thickness:

100% Complete coverage to .00008" maximum per side.

2. Air-Wipe (HALT)

Strip Gauge
.005"-.010"
.011"-.015"
.016"-.025"
.026"-.032"

Strip Width
3.00" to 15"
3.00" to 15"
3.00" to 8"
3.00" to 8"

Coating Thickness:

1.

Intermediate Coat - .00002" minimum to .00015" maximum. Marjan is now holding a coating spec. of .00004" to .00008" using Intermediate Pricing. We do ask for a .0001" spread with our Tin/Lead coatings. (Ex: .00005" to .00015")

2.

Hevi-Kote - .00006" minimum to .0015" maximum. We ask for a .0001" spread between minimum and maximum. A larger spread is needed for any coating with .0003" minimum.

Give us a call with any inquiry not within above parameters. Clean, flat strip is necessary for a high quality coated product.


Preparation for Analyzing Purity of Tin Bath


Copper & Brass Servicenter Association
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