The contents specified in Q/BQB 518-2018 Wire rod used for steel fiber developed and published by Baoshan Iron & Steel Co., Ltd. (hereinafter referred to as “Baosteel”) meet the requirements of relevant national laws and regulations, mandatory standards and relevant industrial policies, and are published upon approval by the legal representative of the enterprise in accordance with the prescribed procedures. Our products meet the technical requirements given in this standard, the reference number of which is expressly indicated on the applicable products or product packages. We are held responsible for the authenticity, accuracy and legality of the publicly declared information, and bear all legal responsibilities for the consequences arising from the implementation of this standard.
Baoshan Iron & Steel Co., Ltd.
2018-02-05
Technical indicator 1
Description: Major indicators including chemical composition and mechanical properties
Requirements: Refer to the attachment for major indicators including chemical composition and mechanical properties and corresponding test methods (see Page 4 for details).
Document of the requirements of technical indicator 1
Self-commitment
The contents specified in Q/BQB 518-2018 Wire rod used for steel fiber developed and published by Baoshan Iron & Steel Co., Ltd. (hereinafter referred to as “Baosteel”) meet the requirements of relevant national laws and regulations, mandatory standards and relevant industrial policies, and are published upon approval by the legal representative of the enterprise in accordance with the prescribed procedures. Our products meet the technical requirements given in this standard, the reference number of which is expressly indicated on the applicable products or product packages. We are held responsible for the authenticity, accuracy and legality of the publicly declared information, and bear all legal responsibilities for the consequences arising from the implementation of this standard.
Baoshan Iron & Steel Co., Ltd.
2018-02-05
Technical indicator 1
Description: Major indicators including chemical composition and mechanical properties
Requirements: Refer to the attachment for major indicators including chemical composition and mechanical properties and corresponding test methods (see Page 4 for details).
Document of the requirements of technical indicator 1
Table 1
Designation Chemical composition (m/m), %
C Si Mn P S Cu Cr Ni Al N
B04XW ≤0.06 ≤0.05 0.20~0.50 ≤0.025 ≤0.025 ≤0.10 ≤0.10 ≤0.10 ≤0.04 ≤0.008
Note: B04XW is the designation developed by Baosteel.
Table 2
Tensile strength, Rm/MPa Elongation at break, A/% Reduction of area, Z/%
330~380 ≥22 ≥75
Table 3
No. Inspection item Test specimen(s) Sampling method and position Test method
1 Chemical composition
(by ladle analysis) 1/heat GB/T 20066 GB/T 223, GB/T 4336, GB/T 20123, GB/T 20124, GB/T 20125, GB/T 20126
2 Tensile test 2/lot GB/T 2975, from different wire rod individuals GB/T 228.1
