IS 207:1990 is the Indian Standard (BIS) for mild steel butt hinges. This standard specifies the requirements for materials, dimensions, manufacture, and finishes for mild steel butt hinges used in builders' hardware. It classifies hinges into light, medium, and heavy weights, detailing exact dimensional tolerances and screw configurations for proper fitment in doors, windows, and shutters.
Specifies requirements for mild steel butt hinges for general building purposes.
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Classification System | Based on length, weight (light/medium/heavy), and type (e.g., Type A, B, C). | 8-digit code for category of use, durability, door mass, fire suitability, safety, corrosion, security, and hinge grade. | EN 1935:2002 |
| Durability Test (Endurance) | Not specified. Durability is implied by material and dimensional requirements. | Performance grades based on cycles (e.g., Grade 1: 2,500,000 cycles; Grade 3: 350,000 cycles). | ANSI/BHMA A156.1-2022 |
| Corrosion Resistance | Requires a protective finish (e.g., plating, painting). No performance test mandated. | Graded 0-5 based on hours in a Neutral Salt Spray test (e.g., Grade 4 = 240 hours). | EN 1935:2002 |
| Material Specification | Mild Steel conforming to IS 2062 (formerly IS 226) or IS 1079. | Covers steel, stainless steel (304, 316), brass, and bronze with specific chemical compositions. | ANSI/BHMA A156.1-2022 |
| Load Bearing Capacity | Implicitly defined by hinge dimensions; no explicit load test. | Explicitly tested and graded for use with specific test door masses (e.g., 20 kg, 40 kg, 80 kg, 120 kg). | EN 1935:2002 |
| Suitability for Fire Doors | Not specified in the standard. | A specific classification digit (Digit 4, Grade 1) indicates suitability for use on fire/smoke door assemblies. | EN 1935:2002 |