High Carbon Steel Wire Hot-Dip Galvanized ASTM B-498 Standard

Everbright supplies quality hot dipped galvanized wire of high carbon steel material, wire diameter ranging from 1.55mm to 4.11mm, meeting ASTM B-498 standards.

Raw Material:
High Carbon Steel - Chemical Composition

Carbon	Manganese	Phosphorus (max)	Sulfur (max)	Silicon
0.45 up to 0.70%	0.50 to 1.10%	0.035%	0.045%	0.10 to 0.35 %

Zinc Coating (MINIMUN) ASTM B-498 Standard
Preece Test according to ASTM A 239-95 (Reapproved 2004).

Diameter (mm)	Minimum Zinc Coating for Class B (g/m²)	Preece Test – number of 1 minute immersions
1.55	244	3 ½
1.78	305	3 ½
1.95	430	3 ½
2.06	430	3 ½
2.18	430	3 ½
2.31	460	4
2.45	460	4
2.54	460	4
2.8	490	5
2.9	490	5
3.15	520	6
3.25	520	6
3.55	550	6
3.66	550	6
3.95	550	6
4.11	550	6

We also supply class A zinc coating according to the ASTM B-498 for high carbon steel wire materials.

 

Permissible Variations in Diameter of Zinc-Coated High Carbon Steel Wire

Diameter	Tolerance Plus (mm)	Minus (mm)
From 1.55 up to 2.30	0.03	0.02
From 2.31 up to 3.05	0.04	0.04
From 3.06 up to 3.60	0.04	0.04
From 3.61 up to 4.60	0.07	0.08

 

Tensile Requirements for all wire diameters

	Tensile Strength	Elongation in 250mm (10")
All diameters	From 1400 up to 1500 MPa	From 4.0% up to 4.5%

REQUIRED TESTS

Coating Tests
- Shall be conducted according to the instruction of the item 10.2 of the ASTM B-498

Preece Test
- Shall be conducted according to the ASTM A 239 – 95 (Reapproved 2004)

"Dropping" Test – THIS IS A VERY IMPORTANT TEST
This test MUST be done according to the method described below.
A piece (sample - approximately 1.5/2.0 meters) of the galvanized steel wire should be cut and dropped in the ground, the wire MUST lie totally in the ground (cast and helix must be almost 0 - no more than 15 cm), if one or both sides go up from the floor more than 15 cm the material IS NOT APPROVED.

When the wire is dropped in the ground use the reference below (drawings) to check the cast and helix.

PERFECT	NOT APPROVED

Wrap Test for the wire (ductility of steel)
According to the item 9 of the ASTM B-498 BUT the diameter of the mandrel MUST BE the same diameter of the wire and the material must accomplish with this standard.

Adherence of Coating Test
According to items 10 and 11 of ASTM B-498:

Specified Wire Diameter	Ratio of Mandrel Diameter to Wire Diameter
from 1.55 to 2,59	1
from 2.60 to 3.24	2
from 3.25 to 4.80	3

The surface must be reasonably smooth, continuous, uniform thickness and free of imperfections.

The tests must be done in all coils or reels

Joints are permitted but maximum 1 each 250 Kg (more or less) to diameters up to 2.50mm and 1 joint each 400 Kg for diameters more than 2.51mm. Each joint must be marked in red in an area of 2 meters.

Package: Coils or reels about 800 Kg.

Customized specifications and packing also supplied.