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Appendix A of this Standard is informative.
This Standard is proposed by the China Iron and Steel Association.
This Standard is under the jurisdiction of the National Technical Committee on Iron and Steel of Standardization Administration of China.
Drafting organizations of this Standard: Fasten Group Corporation, Jiangsu Langshan Wirerope Co., Ltd., Nantong Shuailong Wirerope Co., Ltd. and China Metallurgical Information and Standardization Institute.
Chief drafters of this Standard: Dong Dong, Lu Jianfeng, Deng Haiyan, Yang Wei, Zhang Chunlei, Feng Ping, Yu Jianhong, Shi Zhong, Dai Shifeng and Wang Lingjun.
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
中華人民共和國國家標(biāo)準(zhǔn)
GB/T 24202-2009
Carbon Steel Wire for Optical Fiber Cable Tension Members
光纜增強(qiáng)用碳素鋼絲
1 Scope
This Standard specifies the dimension, appearance and permissible deviation, technical requirements, test methods, inspection rules and packaging, marking as well as quality certificate of the carbon steel wire for optical fiber cable tension members. .
This Standard applies to zinc-coated and phosphatized round carbon steel wire (hereinafter referred to as steel wire) for the reinforcing parts of optical fibers and cables and other similar purposes.
2 Normative References
The following documents contain provisions which, through reference in this Standard, constitute provisions of this Standard. For dated references, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, Parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest editions of the document referred to apply.
GB/T 228 Metallic Materials - Tensile Testing at Ambient Temperature
GB/T 238 Metallic Materials - Wire - Reverse Bend Test
GB/T 239 Metallic Materials Wire Torsion Test
GB/T 1839 Steel Product Zinc Coating Mass Testing Method
GB/T 2103 General Provisions for Checking, Packing, Marking and Quality Certification of Steel Wire
GB/T 2976 Metallic Materials - Wire - Wrapping Test
GB/T 4354 Hot Rolled Quality Carbon Steel Wire Rod
GB/T 8653 Metallic Materials; Determination of Youngs Modulus, Chord Modulus, Tangent Modulus and Poisson
GB/T 9792 Conversion Coatings on Metallic Materials - Determination of Coating Mass Per Unit Area - Gravimetric Methods
3 Terms and Definitions
For the purposes of this Standard, the terms and definitions established in GB/T 228 and those listed below apply.
Phosphated steel wire
Finished steel wire via phosphating with phosphate coating on the surface.
4 Ordering Content of Steel Wire
Order Contract of this Standard shall include the following items:
a) Standard No.;
b) Name of product;
c) Nominal diameter;
d) Quantity (length);
e) Surface condition;
f) Nominal tensile strength grade;
g) Manner of packing;
h) Other requirements.
5 Dimension, Appearance and Permissible Deviation
5.1 Dimension
5.1.1 Nominal diameter
Nominal diameter of steel wire shall be in accordance with those specified in Table 1, as for acceptance of steel wire, various inspection results shall be based on the nominal diameter.
Other specifications of steel wire may also be adopted as agreed by both the Supplier and the Purchaser.
5.1.2 Diameter and permissible deviation
Steel wire diameter refers to the arithmetic average of the twice measured diameter in the mutually perpendicular direction on the same cross section. The permissible deviation shall be consistent with those specified in Table 1.
Table 1 Nominal Diameter and Permissible Variation of Steel Wire mm
Nominal diameter of steel wire, d Permissible deviation
0.50≤d<0.80 ±0.01
0.80≤d<1.60 ±0.02
1.60≤d<3.00 ±0.03
5.1.3 Non-circularity
The non-circularity of the steel wire shall not be greater than half of the nominal diameter.
5.2 Straightness
Steel wire shall be flat and smooth. In the event that a circuit of steel wire is randomly clipped from the spool for delivery and laid flat on the plane, its free circle diameter shall not be less than the outside diameter of spool and the warped height shall be no greater than 50 mm.
5.3 Length
The length of steel wire shall be produced in accordance with specified length or multiple length as purchaser required, with the deviation during delivery referring to (0~+1)%.
Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
4 Ordering Content of Steel Wire
5 Dimension, Appearance and Permissible Deviation
6 Technical Requirements
7 Test Methods
8 Inspection Rules
9 Packaging, Marking, Transportation, Storage and Quality Certificate
Appendix A (Informative) Appearance and Dimension of Spool
