15-5pH kila kila i hoʻolālā ʻia e ʻoi aku ka paʻakikī ma mua o 17-4 PH.ʻO ka huila 15-5 he martensitic i ke ʻano i ke kūlana annealed a hoʻoikaika hou ʻia e ka mālama wela haʻahaʻa haʻahaʻa e hoʻoheheʻe ai i kahi keleawe i loko o ka ʻāpana.Ua kapa ʻia ʻo 15-5 ʻo XM-12 i kekahi mau kikoʻī
C | Cr | Ni | Si | Mn | P | S | Cu | Nb |
≤0.07 | 14.0-15.5 | 3.5-5.5 | ≤1.0 | ≤1.0 | ≤0.04 | ≤0.03 | 2.5-4.5 | 0.15-0.45 |
ʻO ka mānoanoa | ʻAiʻa uila | ʻO ka mana kikoʻī wela | Koefficient hoʻonui wela |
7.8 | 0.98 | 460 | 10.8 |
Kūlana | бb/N/mm2 | б0.2/N/mm2 | δ5/% | ψ | HRC | |
Ka ua | 480 ℃ ka ʻelemakule | 1310 | 1180 | 10 | 35 | ≥40 |
550 ℃ ka ʻelemakule | 1070 | 1000 | 12 | 45 | ≥35 | |
580 ℃ ka ʻelemakule | 1000 | 865 | 13 | 45 | ≥31 | |
620 ℃ ka ʻelemakule | 930 | 725 | 16 | 50 | ≥28 |
AMS 5659, AMS 5862, ASTM-A564 (XM-12), BMS 7-240 (Boeing), W.Nr./EN 1.4545
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