| 摘要 |
FIELD: metallurgy.SUBSTANCE: invention refers to metallurgy, particularly to oil-field schedule pipes. To ensure low anisotropy of yield strength of the pipe upon various stresses application to it depending on the application the austenite alloy pipe is produced with tension yield strength YSat least 689.1 MPa. Tension yield strength during tension YSand compression yield strength YSin pipe axial direction, tension yield strength YSin pipe peripheral direction, and compression yield strength YSin pipe peripheral direction comply with equations (1)-(4): 0.90?YS/YS?1.11 (1), 0.90?YS/YS?1.11 (2), 0.90?YS/YS?1.11 (3), 0.90?YS/YS?1.11 (4).EFFECT: assurance of low anisotropy of pipe yield strength.9 cl, 10 dwg, 2 tbl, 1 ex |
