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IS 3150:1982 is the Indian Standard (BIS) for hexagonal wire netting for general purposes. This standard specifies the requirements for materials, dimensions, and testing of hexagonal wire netting (often called chicken wire) made from galvanized mild steel wire, intended for general purposes such as fencing, poultry enclosures, and light reinforcement.
Hexagonal Wire Netting for General Purposes
Overview
Status
Current
Usage level
Specialized
Domain
Materials Science — Sieves, Sieving and Other Sizing Methods
! Mesh size is measured as the distance at right angles between two opposite sides of the hexagonal opening, not from corner to corner.
! Wire can be galvanized either before or after weaving. Galvanizing after weaving provides better corrosion resistance at the joints and is often preferred for outdoor applications.
! Always check the base wire diameter conformity against IS 280 before evaluating the zinc coating.
BS EN 10223-2:2012BSI (British Standards Institution) / CEN (European Committee for Standardization), UK/Europe
HighCurrent
Steel wire and wire products for fencing and netting. Hexagonal steel wire netting for agricultural, insulation and general purposes
Covers hexagonal wire netting for nearly identical applications, specifying materials, dimensions, and coatings.
JIS G 3554:2017JSA (Japanese Standards Association), Japan
HighCurrent
Hexagonal wire netting
Directly specifies hexagonal wire netting, including galvanized and PVC-coated types for general use.
ASTM A975 - 11(2021)ASTM International, USA
MediumCurrent
Standard Specification for Double-Twisted Hexagonal Mesh Gabions and Revet Mattresses
Covers heavier-duty double-twisted hexagonal mesh for civil engineering, not light-duty general purposes.
Key Differences
≠IS 3150 specifies 'regular twist' manufacturing, whereas modern standards like BS EN 10223-2 mandate 'reverse twist' (double twist), which provides superior strength and prevents unravelling if a wire breaks.
≠Modern international standards offer a wider range of corrosion protection, explicitly defining zinc-aluminium (Zn-Al) alloy coatings and polymer (PVC) coatings, which provide longer service life than the standard hot-dip galvanizing specified in IS 3150.
≠IS 3150 specifies 'mild steel wire' without a defined tensile strength, while standards like BS EN 10223-2 specify a clear tensile strength range (e.g., 350-550 N/mm²), ensuring more consistent mechanical properties.
≠The method for specifying coating weight in IS 3150 refers to older Indian standards with 'light/medium/heavy' grades, while EN/ASTM standards use defined classes (e.g., Class A, Class B) with specific minimum mass per unit area in g/m².
Key Similarities
≈All standards define the fundamental product as a mesh formed by twisting steel wires to create a hexagonal pattern.
≈The primary parameters used to specify the netting—mesh size (distance between parallel sides), wire diameter, and roll dimensions—are consistent across all standards.
≈All standards recognize and specify the use of a heavier gauge selvage wire along the edges of the netting to provide reinforcement and stability.
≈The base material across all standards is low-carbon steel wire, with galvanization being the primary method for providing corrosion resistance.
Parameter Comparison
Parameter
IS Value
International
Source
Twist Type
Regular twist (single twist)
Reverse twist (double twist)
BS EN 10223-2:2012
Wire Tensile Strength
Not specified (defined as 'mild steel wire')
350 - 550 N/mm²
BS EN 10223-2:2012
Mesh Size Tolerance (for 50 mm mesh)
±10%
±5% on nominal mesh size (methodology differs but generally tighter)
BS EN 10223-2:2012
Advanced Coating Option
Not specified (primarily hot-dip zinc)
Zinc-Aluminium Alloy (Zn95Al5) coating available as standard class
BS EN 10223-2:2012
Minimum Zinc Coating (Class A Equivalent)
Refers to IS 4826 'light/medium' grades (e.g., ~40-60 g/m² for light use)
Class A: min. 70 g/m² for a 1.20mm wire
BS EN 10223-2:2012
Selvage Wire Requirement
One or two gauges heavier than mesh wire
Specified minimum diameter (e.g., >= 1.40 mm for 1.00 mm mesh wire)
BS EN 10223-2:2012
⚠ Verify details from original standards before use
What base material is required for the wire netting?+
Mild steel wire conforming to IS 280.
How is the uniformity of the zinc coating tested?+
It is tested in accordance with IS 2633, usually requiring a specified number of dips in a copper sulphate solution without showing a bright copper deposit.
What is the standard tolerance for the width of the wire netting roll?+
The tolerance on the width of the roll is ± 5 percent.