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 finish Light drawn
Type Grade Tensile Strength N/mm2 (Kgf/mm2) Elongation
(%)
Reduction of
area rate (%)
Tensile Strength
N/mm2 (Kgf/mm2)
Elongation
(%)
Reduction
of area rate (%)
Austenite AISI
304/316
490-740
(60-75)
40 over 70 over 650-800
(66-81)
25 65
AISI
302HQ
440-90
(45-60)
40 over 70 over 460-640
(47-65)
25 65
Ferrite AISI
430
40-55 20 over 65 over 460-640
(47-65)
10 60

DIAMETER TOLERANCES AND OVALITY

Dia (mm) Tolerances(mm) Ovality(mm)
0.80-1.90 +0.00-0.02 0.010
2.00-3.50 +0.00-0.03 0.015
3.51-8.00 +0.00-0.04 0.020
In coils on formers placed on pallets.

CLASSIFICATION

Type Grade Diameter (mm) Surface Finish
Austenite AISI304
AISI302HQ
0.80-8.00 Bright De-coated wire or sterate coated
AISI316 0.80-8.00
Ferrite AISI430 0.80-8.00 Bright De-coated wire or sterate coated
Packing specifications

Chemical Composition table