Q/BQB 517-2023 PDF English
US$695.00 · In stock · Download in 9 secondsQ/BQB 517-2023: Wire rods for cold heading Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureQ/BQB 517: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| Q/BQB 517-2023 | English | 695 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Wire rods for cold heading
| |
| Q/BQB 517-2019 | English | 205 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Cold Heading Steel Wire Rod
| |
| Q/BQB 517-2018 | English | 190 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Steel wire rod for cold heading
| Obsolete |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: Q/BQB 517-2023
Q/BQB 517-2023: Wire rods for cold heading---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/QBQB517-2023
BQB
ENTERPRISE STANDARD OF
BAOSHAN IRON AND STEEL CO., LTD
Replacing Q/BQB 517-2019
Wire Rods for Cold Heading
Issued on. APRIL 9, 2023
Implemented on. JULY 1, 2023
Issued by. Baoshan Iron and Steel Co., Ltd.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative References... 5
3 Terms and Definitions... 6
4 Ordering Content... 6
5 Size, Shape, Weight and Tolerance... 7
6 Technical Requirements... 7
7 Inspection and Test... 9
8 Packaging, Marking and Inspection Documents... 10
9 Numerical Rounding Rules... 10
10 Appendix... 10
Appendix A (Normative) Special Quality Requirements... 19
Appendix B (Informative) Approximate Comparison of Designations in this Document
and Relevant Standards... 20
Foreword
This Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for
Standardization – Part 1.Rules for the Structure and Drafting of Standardizing Documents.
This document is formulated based on the characteristics of the company's products and
processes.
This Document replaced Q/BQB 517-2019.Compared With Q/BQB 517-2019, this Document
made the major changes as follows besides the editorial modifications.
--- Change the normative references; and some standards have been changed to undated
citations (the latest version, including all amendments, applies to this Document) (see
Clause 2 of this Edition; Clause 2 of the 2019 Edition);
--- Add the Clause 3 "Terms and Definitions";
--- Change the "Information Required for Ordering" into "Ordering Content" (see Clause 4
of this Edition; Clause 3 of the 2019 Edition);
--- After negotiation between the supplier and the purchaser, the requirements for P and S
content of the melting ingredients of some designations in Tables 1 and 2 can be further
tightened; and assign the ordering identification code Z1; and accordingly included in
the "ordering content" (see 6.1.4, Appendix A and Clause 4 of this Edition; 5.1, Appendix
A and Clause 3 of the 2019 Edition);
--- Add the designations 10, 20, SAE1015 and corresponding technical requirements;
--- Add DS inclusion requirements (see 6.6, Tables 3 and 4 of this Edition; 5.6, Tables 3 and
4 of the 2019 Edition);
--- Add provisions on tensile test methods and test rates (see 7.1 of this Edition; 6.1 of the
2019 Edition);
--- Change Table 5 (see 7.1 and Table 5 of this Edition; see 6.1 and Table 5 of the 2019
Edition);
--- Change the approximate comparison table of designations between this Document and
domestic and foreign standards (Appendix B of this Edition; Appendix B of the 2019
Edition).
The Appendix A of this Document is normative.
The Appendix B of this Document is informative.
This Document was proposed by Manufacturing and Management Department of Baoshan Iron
and Steel Co., Ltd.
This Document shall be under the jurisdiction of Manufacturing and Management Department
of Baoshan Iron and Steel Co., Ltd.
This Document was drafted by Manufacturing and Management Department of Baoshan Iron
and Steel Co., Ltd.
Chief drafting staff of this Document. Xu Qing.
The historical editions replaced by this Standard are as follows.
--- This Document was first time published in 1998; first time revised in 2003; second time
revised in 2009, third time revised in 2014, and fourth time revised in 2018.
--- When taking the fifth revision in 2019, it integrated the original WISCO enterprise
standard (covers all designations of the original WISCO enterprise standard Q/WG(DX)
14-2014 and adds designation comparison with the original WISCO enterprise standard);
--- It is sixth time revised hereby.
Wire Rods for Cold Heading
1 Scope
This Document specifies the size, shape, weight and tolerance, technical requirements,
inspection and testing, packaging, marking and inspection documents of wire rods for cold
heading.
This Document applies to hot-rolled wire rods for cold heading produced by Baoshan Iron and
Steel Co., Ltd. It is mainly used for manufacturing high-grade cold-formed fasteners, special-
shaped parts, etc. used in the automotive, electronics, machinery and other industries.
2 Normative References
The provisions in following documents become the essential provisions of this Document
through reference in this Document. For the dated documents, only the versions with the dates
indicated are applicable to this Document; for the undated documents, only the latest version
(including all the amendments) is applicable to this Document.
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 223 Methods for chemical analysis of iron, steel and alloy
GB/T 224-2019 Determination of the depth of decarburization of steels
GB/T 228.1-2021 Metallic materials - Tensile testing - Part 1.Method of test at room
temperature
GB/T 230.1 Metallic materials - Rockwell hardness test - Part 1.Test method
GB/T 2975 Steel and steel products - Location and preparation of samples and test pieces
for mechanical testing
GB/T 4336 Standard Test Method for Spark Discharge Atomic Emission Spectrometric
Analysis of Carbon and Low-Alloy Steel (Routine Method)
GB/T 6394 Metal - Methods for estimating the average grain size
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of
limiting values
GB/T 10561-2005 Steel - Determination of Content of Nonmetallic Inclusions -
Micrographic Method Using Standards Diagrams
GB/T 11261 Steel and Iron - Determination of oxygen content - The pulse heating inert
gas fusion-infra-red absorption method
GB/T 13298 Inspection methods of microstructure for metals
3 Terms and Definitions
For the purposes of this Document, there are no terms and definitions apply.
4 Ordering Content
The contract or order for wire rod ordered according to this Document shall include the
following contents.
5 Size, Shape, Weight and Tolerance
5.1 When the coil weight group category is Group-I. the coil weight in the coil shall generally
be 1700 kg ~ 2400 kg; 10% of the number of coils in each delivery batch (less than two coils
are allowed to have two coils) is allowed to have a coil weight less than 1 700kg,
5.2 Other requirements for size, shape, weight and tolerance shall comply with the provisions
of Q/BQB 501.
6 Technical Requirements
6.1 Designation and chemical composition
6.1.1 The designation and chemical composition (smelting composition) of cold heading steel
shall comply with the provisions of Table 1.The designation and chemical composition
(smelting composition) of B-series cold heading steel shall comply with the provisions of Table 2.
6.1.2 The chemical composition tolerance of the finished wire rod shall comply with the
provisions of GB/T 222.
6.1.4 According to the requirements of the purchaser, the special quality requirements specified
in Appendix A.2 can also be met after negotiation between the supplier and the purchaser and
noted in the contract (order code Z1).
6.2 Smelting methods
Steel is smelted in an oxygen converter or electric furnace and refined outside the furnace. If
the purchaser does not specify otherwise, the smelting method shall be determined by the
supplier.
6.3 Delivery status
Wire rod is delivered in hot-rolled condition.
6.6 Non-metallic inclusions
Wire rods shall be inspected for non-metallic inclusions. Non-metallic inclusions in wire rods
shall be rated according to Method-A in GB/T 10561-2005.For the designations in Table 1, the
qualification level shall comply with the provisions of Table 3;
6.7 Surface quality
6.7.1 The surface of the wire rod shall be smooth and shall not have cracks, folds, scars, ears
and other defects that are harmful to use. Indentations and local bumps, pits, scratches, pits, and
hair lines are allowed, but their depth or height (calculated from the actual size). for the
designations in Table 1, it shall be no greater than 0.10 mm;
6.7.2 Harmful defects at the head and tail of the wire rod shall be cut off, and the cross-section
shall be free of shrinkage holes, delamination and inclusions.
6.8 Other special requirements
According to the requirements of the purchaser and upon agreement between the supplier and
the purchaser, tensile properties (wire rods with specifications 18.0 mm below), hardness tests
(wire rods with specifications of 18.0 mm and above), grain size, microstructure or other items
can be inspected; the indicators are stipulated through the agreement between the supplier and
the purchaser.
7 Inspection and Test
7.1 Inspection items, specimen quantity, sampling methods and locations, and test
methods
The inspection items, sample quantity, sampling methods and locations, and test methods for
each batch of wire rods shall be implemented in accordance with the provisions of Table 5.
If a tensile test is required, the tensile test shall be in accordance with Method-B in GB/T 228.1-
2021.
7.2 Inspection method of iron oxide scale
Take one or several coils of wire rod specimen and weigh it. Remove iron oxide scale from the
surface and weigh it again. The difference in weight before and after is the weight of the iron
oxide scale of the specimen.
7.3 Batching rules
Wire rods shall be inspected in batches; and each batch consists of wire rods of the same
designation, furnace number, and size.
7.4 Reinspection and judgment rules
If one test result of any inspection does not meet the standard requirements, in addition to
rejecting the unqualified wire rod, randomly double the specimen quantity from the same batch
for reinspection of the unqualified item.
8 Packaging, Marking and Inspection Documents
The packaging, marking and inspection documents of wire rods shall comply with the
provisions of Q/BQB 500.
9 Numerical Rounding Rules
The numerical judgment adopts the rounding value comparison method; and the numerical
rounding rules shall comply with the provisions of GB/T 8170.
Appendix A
(Normative)
Special Quality Requirements
A.1 Scope
According to the requirements of the purchaser, the supplier shall adopt the requirements of
A.2 and/or A.3 of this Appendix after negotiation between the supplier and the purchaser and
being noted in the contract.
A.2 Chemical composition (order code Z1)
After negotiation between the supplier and the purchaser and being specified in the contract,
the mass fraction requirements for P and S content in the smelting ingredients of some
designations in Tables 1 and 2 shall be replaced by the following requirements.
A.3 Surface quality (order code Z4)
After negotiation between the supplier and the purchaser, and being noted in the contract, the
requirements in Subclause 6.7.1 shall be replaced by the following requirements.
The surface of the wire rod shall be smooth and shall be free of cracks, folds, scars, ears and
other defects that are harmful to use. Indentations and local bumps, pits, scratches, pits, and
hair lines are allowed, but their depth or height (calculated from the actual size). for the
designations in Table 1, it shall be no greater than 0.07 mm; for the designation in Table 2, it
shall be no larger than 0.05 mm.
Appendix B
(Informative)
Approximate Comparison of Designations in this Document
and Relevant Standards
B.1 The approximate comparison of designations in this Document and Relevant standards can
refer to Tables B.1 ~ B.18.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of Q/BQB 517-2023 be delivered?Answer: The full copy PDF of English version of Q/BQB 517-2023 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of Q/BQB 517-2023_English with my colleagues?Answer: Yes. The purchased PDF of Q/BQB 517-2023_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- Q/BQB 517-2023 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. Question 5: Should I purchase the latest version Q/BQB 517-2023?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version Q/BQB 517-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. How to buy and download a true PDF of English version of Q/BQB 517-2023?A step-by-step guide to download PDF of Q/BQB 517-2023_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "Q/BQB 517-2023".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|