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Cold Heading Wires

KEl’s Stainless Steel Wire for Cold Heading is made by special heat treatment, copper-bearing austenitic steel302CHQ, 304HQ, normal 304 and 430 are also used for cold heading fasteners.

Special Characteristics

Excellent corrosion resistance and mechanical strength and is the most suitable material for bolts,screws and other fasteners and has a marked work hardening characteristics.

Supply Conditions

All KEI wires are coated to ensure smooth heading operations Condition. Cold drawn and Annealed, Cold drawn, Annealed and skin pass or as per customer requirement with very fine tolerance.

MECHANICAL PROPERTIES

Annealed finishLight drawn
TypeGradeTensile Strength N/mm2 (Kgf/mm2)Elongation
(%)
Reduction of
area rate (%)
Tensile Strength
N/mm2 (Kgf/mm2)
Elongation
(%)
Reduction
of area rate (%)
AusteniteAISI
304/316
490-740
(60-75)
40 over70 over650-800
(66-81)
2565
AISI
302HQ
440-90
(45-60)
40 over70 over460-640
(47-65)
2565
FerriteAISI
430
40-5520 over65 over460-640
(47-65)
1060

DIAMETER TOLERANCES AND OVALITY

Dia (mm)Tolerances(mm)Ovality(mm)
0.80-1.90+0.00-0.020.010
2.00-3.50+0.00-0.030.015
3.51-8.00+0.00-0.040.020
In coils on formers placed on pallets.

CLASSIFICATION

TypeGradeDiameter (mm)Surface Finish
AusteniteAISI304
AISI302HQ
0.80-8.00Bright De-coated wire or sterate coated
AISI3160.80-8.00
FerriteAISI4300.80-8.00Bright De-coated wire or sterate coated
Packing specifications

Chemical Composition table