What grade of stainless steel is required for IS 12817 hinges?

Grade X04Cr19Ni9 as per IS 6911, which is equivalent to AISI 304 grade (Clause 4.1).

How many cycles must a hinge withstand in the endurance test?

The hinge must complete 200,000 operating cycles under a specified test load without any breakage (Table 2).

What are the standard dimensions for a 100 mm hinge?

For a 100 mm hinge, typical dimensions are 100mm (length) x 75mm (width) x 2.5mm (thickness) as per Table 1.

Is a corrosion test mandatory for these hinges?

Yes, the hinge must pass a 96-hour neutral salt spray test according to IS 9847, as specified in Clause 7.3.

IS 12817

: 1997

Stainless steel butt hinges - Specification

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This standard specifies the requirements for materials, dimensions, manufacture, performance, and testing of stainless steel butt hinges. It covers various sizes of hinges used for doors, windows, and cabinets, ensuring quality through specifications on material grade (SS-304), dimensional accuracy, and durability via endurance and corrosion resistance tests.

Stainless steel butt hinges - Specification

Quick Reference Values

Required Stainless Steel GradeGrade X04Cr19Ni9 of IS 6911 (equivalent to AISI 304)

Endurance Test Requirement200,000 cycles under specified load

Corrosion Resistance Test96 hours in neutral salt spray test (as per IS 9847)

Minimum Leaf Thickness for 100 mm hinge2.5 mm

Minimum Leaf Thickness for 75 mm hinge2.0 mm

Maximum Wear on Pin after Endurance Test0.40 mm

Practical Notes

Always verify the grade of stainless steel. Grade 304 is specified, but inferior grades like 202 are common in the market and have poor corrosion resistance, especially in coastal areas.

Ensure the hinge dimensions, particularly leaf thickness, match the values in Table 1 for the specified hinge size. Undersized hinges will fail prematurely.

The ISI mark is a key indicator of conformity to this standard. Look for the mark on both the hinge and its packaging.