GB/T 8919-1996Wire for steel wire ropes use (English PDF)

Foreword

This Standard complies with the national standard "Steel wire ropes" and

replaces GB 8919-88 "Quality wire for steel wire ropes use" and GB 1178-74

"Steel wires for ropes". In terms of technical content, it is equivalent to the

international standards ISO 2232:1990 "Round drawn wire for general purpose

non-alloy steel wire ropes and for large diameter steel wire ropes -

Specifications" and ISO 6984:1990 "Round non-alloy steel wires for stranded

wire ropes for mine hoisting - Specifications". The contents of these two

international standards are incorporated into this Standard, which provide for

wire for steel wire ropes for general and important purposes.

This Standard is an amendment to the GB 8919-88 standard. It retains content

which has been proven to be suitable for national conditions in China's long-

term practice. This Standard has been changed in the following clauses:

- 1 (Scope);

- 3 (Classification);

- 4 (Dimensions, shape, and tolerances);

- 5 (Technical requirements);

- 7.2 (Reinspection).

This Standard was first issued in February 1988.

This Standard was proposed by Ministry of Metallurgical Industry of the PRC.

This Standard shall be under the jurisdiction of China Metallurgical Information

and Standardization Institute.

Drafting organizations of this Standard: Anshan Iron and Steel Group

Corporation, China Metallurgical Information and Standardization Institute,

Tianjin No.2 Steel Wire Rope Factory.

Main drafters of this Standard: Liu Xuyuan, Feng Wenhua, Wang Ping.

Wire for steel wire ropes use

1 Scope

This Standard specifies the classification, dimensions, shape and tolerances,

technical requirements, test methods, inspection rules, packing, marking, and

quality certification of wire for steel wire ropes use.

This Standard applies to the smoothly-surfaced and zinc-coated wire with a

round cross section for the manufacture of steel wire ropes for general and

important purposes.

2 Reference standards

The following standards contain provisions which, through reference in this

Standard, constitute provisions of this Standard. At the time of publication of

this Standard, the editions shown are valid. All standards will be revised. Parties

using this Standard shall explore the possibility of using the latest editions of

the following standards.

GB 228-87 Metallic materials - Tensile testing

GB 238-84 Metallic materials - Wire - Reverse bend test

GB 239-84 Metallic materials - Wire - Torsion test

GB 2103-88 General provisions for checking, packing, marking and quality

certification of steel wire

GB/T 2973-91 Zinc-coated steel wire - Test method for weight of zinc coating

GB 2976-88 Metallic materials - Wire - Wrapping test

GB/T 4354-1994 Hot-rolled quality carbon steel wire rods

3 Classification

4 Dimensions, shape, and tolerances

6 Test methods

The inspection items, test methods, sampling quantity and methods of wires

shall meet the requirements in Table 8.

Table 8 -- Test methods

No. Inspection items Test methods Sampling quantity and methods

Tensile test

Torsion test

Reverse bend test

Knotting tensile test

GB 228

GB 239

GB 238

GB 228

Wire coil: both ends of each coil

I-shaped wheel (or reel): one end of

each I-shaped wheel (or reel)

Test for weight of zinc coating

Wrapping test

GB/T 2973

GB 2976

TAKE the ends of one of every five

wire coils; TAKE one of every ten I-

shaped wheels

One end of I-shaped wheel

7 Shape and dimensions

USE a micrometer

with a division

value of 0.01 mm

to measure

Coil-by-coil (wheel-by-wheel)

measurement for wire coils (or I-

shaped wheels)

8 Surface quality Naked eye Coil-by-coil (wheel-by-wheel) check for wire coils (or I-shaped wheels)

7 Inspection rules