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ASTM A193 B7 Stud Bolt with Zinc Nickel Plating and PTFE Coating

C&N offers high quality of ESPARRAGOS STUD BOLT A193 Grade  B7 w/2 NUTS A194 2H. Zinc Nickel Plating Zinc-Nickel electroplating is an acid coating that is used in the protection of steel, cast iron, malleable iron, copper, and brass. Zinc-Nickel is recognized as an environmentally safe alternative tocadmium electroplating. In specific applications, Zinc-Nickel demonstrates equivalent, or better, corrosion properties when compared to cadmium. Zinc-Nickel is normally applied for corrosion protection purposes, and functions as a “sacrificial coating”, corroding before the base material. Zn-Ni alloy coated stud bolts, zn-ni alloy coatings (usually composed of approximately 85% zinc and 15% nickel) are electroplated on carbon steel as a protective coating in a process similar to the way zinc coatings are applied. Zn-Ni…

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C&N offers high quality of ESPARRAGOS STUD BOLT A193 Grade  B7 w/2 NUTS A194 2H.

Zinc Nickel Plating

Zinc-Nickel electroplating is an acid coating that is used in the protection of steel, cast iron, malleable iron, copper, and brass. Zinc-Nickel is recognized as an environmentally safe alternative tocadmium electroplating. In specific applications, Zinc-Nickel demonstrates equivalent, or better, corrosion properties when compared to cadmium. Zinc-Nickel is normally applied for corrosion protection purposes, and functions as a “sacrificial coating”, corroding before the base material.

Zn-Ni alloy coated stud bolts, zn-ni alloy coatings (usually composed of approximately 85% zinc and 15% nickel) are electroplated on carbon steel as a protective coating in a process similar to the way zinc coatings are applied. Zn-Ni coatings typically consist of 8 to 14 µ m layer of 12 to 16% nickel alloy next to the substrate topped by a 0.06 to 0.15 µ m trivalent passivate layer and a 0.5 to 4.0 µ m top coat layer.

Stud bolt with zinc-nickel (12-18% Ni) plating ,plating thickness of 8 to 13μm.

After ZN-NI plating,we can apply the PTFE coating,Xylan 1014 coating.

then the stud bolts and nuts can achieve up to 3000 hours salt spray resistance. Typical DFT coating 20 – 25 um, available in a wide range of colours.

Salt Spray Test Result (SST : Zn-Ni + Xylan 1014, Min. 3000 hrs (<= 15% Red Rust)

ASTM B117 Salt Spray Corrosion Testing is used primarily to compare the corrosion resistance of painted or metal coated samples. 

Xylan 1424/ xylan 1070/ xylan 1014 FluoroCarbon coated stud bolts
Description: PTFE based fasteners class coating Xylan 1424/ xylan 1070/ xylan 1014 has superb chemical and salt-spray resistance, It performs well in caustic environments, and comes in a wide range of colors. Xylan 1424 is ideal for offshore applications and in environments from sub-sea to splash zone to radio antennas. Xylan 1424 also reduces make-uptorque by as much as 70% and can be made up and broken out numerous times with little or no damage to the coating.
Main Properties: Low coefficient of friction. Abrasion /wear resistant. Dry film lubricant. Thermoset.. Corrosion resistant.
Typical Applications: Piston casing. Compressors. Threaded fasteners.

Fluorcarbon coating-Surface Coatings XYLAN 1070XYLAN 1014.

Diameter:1/4″~3 3/4″
Length:20mm~6000mm(usually 12 feet)
Grade :B7
Standard: M6-M100

Material: ASTM A193 B7.
Surface finished: Zn-Ni + Xylan 1014 PTFE Coated.
Standard: ANSI B18.1.1.

Xylan 1424 coated stud bolt

HIGH AND LOW TEMPERATURE
ASTM A193 / ASTM A320

ASTM A193 GR. B7 (AISI 4140, 4142, 4145)
ASTM A193 GR. B7M (AISI 4140, 4142, 4145)
ASTM A193 GR. B16
ASTM A320 GR. L7 (AISI 4140, 4142, 4145)
ASTM A320 GR. L7M (AISI 4140, 4142, 4145)
ASTM A320GR. L43 (AISI 8740)
ASTM A193/A320 GR. B8 CL. 2 (AISI 304)
ASTM A193/A320 GR. B8 CL. 1
ASTM A193/A320 GR. B8M CL. 2 (AISI 316)
ASTM A193/A320 GR. B8M CL. 1
ASTM A193/A320 GR. B8C CL. 2 (AISI 347)
ASTM A193/A320 GR. B8T CL. 2 (AISI 321)

SUPER HIGH TEMPERATURE &
CORROSION RESISTANCE

ASTM A435 GRADE 660 CLASS A
ASTM A435 GRADE 660 CLASS B
ASTM A435 GRADE 660 CLASS C
ASTM A435 GRADE 660 CLASS D
SUPER DUPLEX UNS S31803
SUPER DUPLEX UNS S32750
SUPER DUPLEX UNS S32760

ASTM A194 NUTS MATERIAL FOR
ASTM A193 / ASTM A320

ASTM A194 GRADE 2H
ASTM A194 GRADE 2HM
ASTM A194 GRADE 4
ASTM A194 GRADE 7
ASTM A194 GRADE 7M
ASTM A194 GRADE 8 (AISI 304)
ASTM A194 GRADE 8M (AISI 316)
ASTM A194 GRADE 8C (AISI 347)
ASTM A194 GRADE 8T (AISI 321)

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