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STANDARD FOR GALVANIZING
1. BS EN ISO 1461 : 1999
Coating minimum thicknesses on samples that are not
centrifuge
Article and its thicknessLocal coating thickness(minimum)
m
Mean coating thickness (minimum)
m
Steel 6 mm 70 85
Steel 3 mm to
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%. -IS /641
%.1 "ppearance #he coate surface shall +e practicall, smooth an
free from +are spot an other
efects that are etrimental to practical use.
%.! $inimum Coating $ass +, Steel Categor, Stel #hickness 0ange
g2m!
Steel
Category
Thickness o' steel
mn to # mm &er # mm to
"mm
&er " mm to
mm
&er
"olled steels e#cluding tues
Steel porduct
Casting and $orging
%&'35
350(4)m*
%&'40
400(56m*
%&'45
450(63m*
%&'50
500(6)m*
Bolts + ,uts 1- mm and oer in dia.
!ashers oer -.3 mm in thic/
%&'35
350(4)m*
0emarks: 0olle steel e3cluing tu+es Steel proucts Casting an
forging to +e ser)e uner se)ere
corrosion en)ironmental conitions minimum coating mass 55'
g2m!
&6m* 7855
%.% Num+er of times Copper sulfate test +, steel Categor, steel
#hickness 0ang
Steel
Category
Thickness o' steel
Up to mm &er mm
"olled steels e#cluding tues
Steel products Steel tuular products
Casting and $orgings
4 times 5 times
Bolts + ,uts 1- mm and oer in dia.
!asgers ier -.3 mm in thic/.
4 times
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4. "S2N8S 46/' : !''6
otip gal)anie &8inc( coating on fa+ricate ferrous
articles
#a+le 1.
R*+UR*M*-TS R CAT-/ T0C1-*SS A-2
MASS R ARTCL*S T0AT AR* -T C*-TRU/*2
Article Thicknesses
mm
Local coating
thickness Microns
A&erage coating
thickness Microns
A&erage coating
mass g/m2
1.5 mm or less 35 45 3-0
2er 1.5 to 3 mm 45 55 3)0
2er 3 to 6 mm 55 70 500
2er 6 mm 70 85 600
#a+le !.
R*+UR*M*-TS R CAT-/ T0C1-*SS A-2
MASS R ARTCL*S T0AT AR* -T C*-TRU/*2
Article Thicknesses (incl.castings)
mm
Local coating
thickness Microns
A&erage coating
thickness Microns
A&erage coating
mass g/m2
1.5 mm or less -5 35 -50
2er 1.5 to 3 mm 40 55 3)0
#he thickness of the gal)anie coating shall first +e teste +,
the purchaser2esigner at the gal)anier;s
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=here a paint finish is to +e applie to the gal)anie coating
this shoul +e a)ise at the time of orer
an all spikes shall +e remo)e an all eges shall +e free from
lumps an runs.
"hesion
#he gal)anie coating shall +e sufficientl, aherent to
