英国 · Lloyds

LR 3Y40

LR:2016 — Rules for the Manufacture, Testing and Certification of Materials——Chapter 11- Section 3:Approval of Welding Consumables - Electrodes for manual and gravity welding

力学性能

按热处理状态分组
屈服强度 Rp0.2≥400 MPa抗拉强度 Rm≥510 MPa抗拉强度 Rm510–690 MPa伸长率 A≥22 %

高温 / 低温性能

性能随温度变化
38.040.543.045.548.0-60-60-60-40-40-40-20-20-20000°C
  • Covered electrodes · 冲击功 Kv/Ku

力学性能

热处理 / 状态屈服强度抗拉强度伸长率断面收缩率冲击功硬度
Covered electrodes≥400 Deposited metal tests≥510 Butt weld tests；510–690 Deposited metal tests≥22 Lo=50mm;Deposited metal tests

高/低温力学性能

冲击功 Kv/Ku (J)
热处理 / 状态温度 ℃min备注
Covered electrodes047Butt weld tests
Covered electrodes039Butt weld tests;in the vertical position with upward progression.
Covered electrodes-2047Butt weld tests
Covered electrodes-2039Butt weld tests;in the vertical position with upward progression.
Covered electrodes-4047Butt weld tests
Covered electrodes-4039Butt weld tests;in the vertical position with upward progression.
Covered electrodes-6047Butt weld tests
Covered electrodes-6039Butt weld tests;in the vertical position with upward progression.
Covered electrodes047Deposited metal tests
Covered electrodes-2047Deposited metal tests
Covered electrodes-4047Deposited metal tests
Covered electrodes-6047Deposited metal tests