GB/T 14981-2009 PDF English
US$70.00 · In stock · Download in 9 secondsGB/T 14981-2009: Dimension, shape, mass and tolerance for hot-rolled round wire rod Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB/T 14981: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 14981-2009 | English | 70 |
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Dimension, shape, mass and tolerance for hot-rolled round wire rod
| Valid |
| GB/T 14981-2004 | English | 279 |
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Dimensions, shape, mass and tolerances for hot-rolled wire rods
| Obsolete |
| GB/T 14981-1994 | English | 199 |
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2 days
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Dimenisions shape weight and tolerances for hot-rolled wire rods
| Obsolete |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 14981-2009
GB/T 14981-2009: Dimension, shape, mass and tolerance for hot-rolled round wire rod---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT14981-2009
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.70
H 44
GB 14981-2009
Replacing GB/T 14981-2004
Dimension, Shape, Mass and Tolerance for
Hot-rolled Round Wire Rod
(ISO 16124.2004, Steel Wire Rod - Dimensions and Tolerances, MOD)
Issued on: JULY 15, 2009
Implemented on: APRIL Y 1, 2010
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
1 Scope ... 5
2 Dimension, Shape and Tolerance ... 5
3 Mass ... 7
4 Inspection ... 7
Foreword
This standard was modified in relation to ISO 16124. 2004 "Steel Wire Road - Dimensions
and Tolerances" (English Edition).
Compared with ISO 16124. 2004, technical differences in this standard are as follows.
- Only the wire rods with circular cross-section were selected and the nominal diameter
range was enlarged to 60 mm;
- Technical indexes with nominal diameter of 50 mm~60 mm were added;
- Disk mass requirements were added.
These technical differences have already been marked with perpendicular single line on
the margin of relevant clauses.
This standard replaces GB/T 14981-2004 "Dimensions, Shape, Mass and Tolerances for
Hot-rolled Wire Rods"; compared with GB/T 14981-2004, the main technical differences
are as follows.
- Application scope of wire rod diameter is enlarged (nominal diameter scope is
enlarged from original 5 mm~40 mm to 5 mm ~60 mm);
- Corresponding technical requirements on 40 mm ~60 mm were added in Table 1;
- Proper adjustment was made on out-of-roundness of Grade A accuracy in Table 1 to
be kept consistent with international standard.
- The term of agreement in Section 2.4 was deleted;
- Only original Group II was maintained among mass groups.
This standard was proposed by China Iron and Steel Association.
This standard shall be under the jurisdiction of National Technical Committee on Iron and
Steel of Standardization Administration of China.
Drafting organizations of this standard. Metallurgical Information and Standardization
Institute, Jiangsu Shagang Group Co., Ltd, Qingdao Iron and Steel Group Co., Ltd.,
Maanshan Iron & Steel Co., Ltd, Xuanhua Iron & Steel Group Co., Ltd., Xingtai Iron &
Steel Group Co., Ltd., Shougang Group and Sichuan Dazhou Iron & Steel Group Co., Ltd.
Chief drafting staffs of this standard. Wang Lingjun, Dai Shifeng, Huang Zhengyu, Yang
Yiming, Liu Yulan, Li Li, Hou Yuehua, Tang Mu and Li Yuanting.
The previous editions replaced by this standard are as follows.
Dimension, Shape, Mass and Tolerance for Hot-rolled
Round Wire Rod
1 Scope
This standard specifies dimension, shape, mass and requirements of hot-rolled wire
rods, unless otherwise specified in product standard, they shall meet requirements of
corresponding product standards.
This standard is applicable to steel round wire rods with nominal diameter of 5 mm~60
mm.
2 Dimension, Shape and Tolerance
2.1 Nominal diameter and nominal cross-sectional area of wire rods are listed in
Table 1.
2.2 Diameter tolerance of wire rods shall meet the requirements of corresponding
grade accuracy in Table 1 and the out-of-roundness shall be less than or equal to 80%
of corresponding grade of diameter tolerance.
2.3 Accuracy grade shall be indicated in corresponding product standard or contract
and any accuracy grade which is not indicated shall be implemented according to
Grade A accuracy.
2.4 As required by the Purchaser, upon the agreement between the Supplier and the
Purchaser, other dimensions and tolerances may be adopted, but tolerances shall be
not greater than specified value of corresponding specification in Table 1.
Table 1
Nominal
diameter/mm
Tolerance/mm Out-of-roundness/mm
Cross-sectional
area /mm2
Theoretical
mass/
(kg/m)
Grade A
accuracy
Grade B
accuracy
Grade C
accuracy
Grade A
accuracy
Grade B
accuracy
Grade C
accuracy
±0.30 ±0.25 ±0.15 ≤0.48 ≤0.40 ≤0.24
19.63 0.154
5.5 23.76 0.187
6 28.27 0.222
6.5 33.18 0.260
7 38.48 0.302
7.5 44.18 0.347
8 50.26 0.395
8.5 56.74 0.445
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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