PZP Steel Tyre Cord Analysis

ASTM 1070 Steel Tyre Wire

There are approximately 2.5 pounds of steel belts and bead wire in UK sourced passenger car tyres. The material is high carbon steel with a nominal tensile strength of 2,750 MN/m2 and the following typical composition:

	STEEL BELTS	BEAD WIRE
Carbon	0.67 – 0.73%	0.60% min.
Manganese	0.40 – 0.70%	0.40 – 0.70%
Silicon	0.15 – 0.03%	0.15 – 0.30%
Phosphorus	0.03% max.	0.04% max.
Sulphur	0.03% max.	0.04% max.
Copper	Trace	Trace
Chromium	Trace	Trace
Nickel	Trace	Trace
COATING	66% Copper/34% Zinc	98% Brass/2% Tin

Steel from Scrap Tyres

Preparation

Consumer and supplier to agree upon preparation for transport, such as the following:

Loose – Chopped. If wire is chopped or shredded, parties may wish to specify the means of processing and/or characteristics of the final product (density, length of pieces, etc.).

ISRI Code No. 272 

Item:    Processed tire wire (Ferrous) – Grade 1. Chopped. Less than two percent (<2%) rubber/fibre.

PYReco tyre shred is less than 1% contaminant and that contaminate is carbon char which can be shaken off the wire.

PZP Steel  – COMPACTED INTO BRIQUETTES FOR THE STEEL INDUSTRY