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Wire Rod And Part, Having Improved Delayed Fracture Resistance, For Use In Bolt And Method For Manufacturing Same
Abstract: Disclosed are high-strength wire rods and parts, having improved delayed fracture resistance, for use in bolts and a method for manufacturing same. The high-strength wire rod, having improved delayed fracture resistance, for use in bolts according to the present invention comprises, by weight%, 0.15 to 0.30% of C, 0.05 to 0.35% of Si, 0.95 to 1.35% of Mn, 0.030% or less of P, 0.030% or less of S, 0.005 to 0.030% of Ti, 0.0010 to 0.0040% of B, and the balance of Fe and inevitable impurities.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
23 June 2023
Publication Number
31/2024
Publication Type
INA
Invention Field
METALLURGY
Status
Email
Parent Application
Applicants
POSCO CO., LTD
6261, Donghaean-ro, Nam-gu,
Pohang-si,
Gyeongsangbuk-do 37859
Inventors
1. CHUN, Youngsoo
207-205, 278, Jigok-ro, Nam-gu
Pohang-si
Gyeongsangbuk-do 37669
2. CHOI, Seok-hwan
107-203, 8, Haebyeong-ro 181beon-gil, Ocheon-eup, Nam-gu
Pohang-si
Gyeongsangbuk-do 37904
3. KIM, Kyoungsik
211-1001, 16, Haedoji-ro 120beon-gil
Yeonsu-gu
Incheon 21995
4. CHOI, Myungsoo
215-1105, 278, Jigok-ro, Nam-gu
Pohang-si
Gyeongsangbuk-do 37669
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202317041860-STATEMENT OF UNDERTAKING (FORM 3) [23-06-2023(online)].pdf | 2023-06-23 |
| 2 | 202317041860-REQUEST FOR EXAMINATION (FORM-18) [23-06-2023(online)].pdf | 2023-06-23 |
| 3 | 202317041860-POWER OF AUTHORITY [23-06-2023(online)].pdf | 2023-06-23 |
| 4 | 202317041860-FORM 18 [23-06-2023(online)].pdf | 2023-06-23 |
| 5 | 202317041860-FORM 1 [23-06-2023(online)].pdf | 2023-06-23 |
| 6 | 202317041860-DRAWINGS [23-06-2023(online)].pdf | 2023-06-23 |
| 7 | 202317041860-DECLARATION OF INVENTORSHIP (FORM 5) [23-06-2023(online)].pdf | 2023-06-23 |
| 8 | 202317041860-COMPLETE SPECIFICATION [23-06-2023(online)].pdf | 2023-06-23 |
| 9 | 202317041860-FORM-26 [27-07-2023(online)].pdf | 2023-07-27 |
| 10 | 202317041860-Proof of Right [23-08-2023(online)].pdf | 2023-08-23 |
| 11 | 202317041860-FORM 3 [23-08-2023(online)].pdf | 2023-08-23 |
| 12 | 202317041860-Verified English translation [24-08-2023(online)].pdf | 2023-08-24 |
| 13 | 202317041860-Verified English translation [24-08-2023(online)]-1.pdf | 2023-08-24 |
| 14 | 202317041860-GPA-040923.pdf | 2023-10-12 |
| 15 | 202317041860-Correspondence-040923.pdf | 2023-10-12 |