ASTM A514 grade P waa nooc ka mid ah birta ASTM A514. Guryaha la xusay waxay ku habboon yihiin xaaladda la demiyay iyo kuwa xanaaqsan. Baararka garaafyada ee kaadhadhka guryaha ee hoose waxay barbar dhigayaan ASTM A514 darajada P iyo: Biraha daawaha la sameeyay ee isla qaybta (sare), dhammaan birta birta ah (dhexe), iyo kaydka oo dhan (hoose). Bar buuxa macnaheedu waa kani waa qiimaha ugu sarreeya ee ku habboon. Bar bar-buuxa ah waxay ka dhigan tahay 50% ee ugu sarreeya, iyo wixii la mid ah.
Saxan bir ah A514 Fasalka P wuxuu ku hoos jiraa qeexitaanka heerka birta ee xoogga dhalidda sare ASTM A514/A514M.A514GrP waa saxan bir daawaha ah oo leh dawaynta kulaylka daminta marka la rogo 514 /SA 514M. Marka alaabta birta la keeno ASTM A514Gr.P, birta birta waxay soo saari doontaa shahaadada tijaabada milkiilaha asalka ah, sidoo kale gaaban MTC taas oo soo sheegta qiyamka kiimikada ugu weyn, hantida makaanikada, dhammaan natiijada baaritaanka marka la duubo birta A514 Darajada P.
Hantida farsamada ee A514 GrP alloy steel:
Dhumucda (mm) | Awood wax-soo-saar (≥Mpa) | Xoog xajin (Mpa) | Kordhinta ≥,% |
50mm | |||
T≤65 | 690 | 760-895 | 18 |
65 | 620 | 690-895 | 16 |
Halabuurka kiimikada ee A514GrP alloy steel (Falanqaynta kulaylka Max%)
Waxyaabaha ugu muhiimsan ee kiimikada A514GrP | ||||||||
C | Si | Mn | P | S | B | Cr | Mo | Ni |
0.12-0.21 | 0.20-0.35 | 0.45-0.70 | 0.035 | 0.035 | 0.001-0.005 | 0.85-1.20 | 0.45-0.60 | 1.20-1.50 |