Lub zog siab qis alloy steel phaj ASTM A709GR.50W kuj muaj npe hu ua weathering steel phaj A709 Qib 50W hauv qhov zoo ntawm nws cov cuab yeej hauv huab cua corrosion kuj. Raws li qhov sib txawv cov ntsiab lus tseem ceeb muaj, A709 Qib 50W tau muab faib ua A709Gr50w hom A, A709Gr50w hom B, A709Gr50w hom C.Cov peb qib steel yog sib npaug rau specification ASTM A 588 / A 588M A558 Grade A. thiab A588 Qib C.Low alloy steel phaj A709 Qib 50W kuj muaj tib yam yam tsawg kawg nkaus lub zog ntawm 345 Mpa li A709 Qib 50 steel phaj.
A709 Gr.50W weathering steel daim hlau, uas yog nto moo rau nws cov cuab yeej nyob rau hauv huab cua corrosion kuj. A709 Qib 50W steel daim hlau yog dav siv hauv kev tsim kho tshuab, mining machinery, tsheb, txuas hniav, siab hlab ntsha thiab lwm yam.,
Technical Requirements & Additional Services:
Yog xav paub ntxiv cov cuab yeej hauv A709 Gr.50S steel phaj, thov xyuas lawv hauv qab no;
A709 Qib 50S Tshuaj muaj pes tsawg leeg ntsuas kub
Element | Tshuaj % |
C, max | 0.23 |
Mn | 0.50-1.60 A |
Si, max | 0.40 |
V, max | 0.15b ua |
Nb, max | 0 ,05b |
P, max | 0.035 |
S, max | 0.045 |
Cu, max | 0.60 |
Nim xma | 0.45 |
Cr, max | 0.35 |
Mas, max | 0.15 |
A709 qib | tuab mm |
Yield [MPa] |
Tensile [MPa] | Elongtation Min % | txo Min % |
HB | |||
Hlau Phaj | Cov qauv hlau | ||||||||
8 hauv [200mm] | 2 hauv [50mm] | 8 hauv [200mm] | 2 hauv [50mm] | ||||||
36[250] | ≤100 | [250] min | 400-550 | 20 | 23 | 20 | 21 | … | … |
[250] min | 400 min | … | … | 20 | 19 | … | … | ||
50[345] | ≤100 | 345 nqi | 450 min | 18 | 21 | 18 | 21 F | … | … |
50S [345S] | G | 345-450 Ib | 450 min H | … | … | 18 | 21 | … | … |
50W [345W] HPS 50W [HPS 345W] |
≤100 | 345 nqi | 485 nqi | 18 | 21 | 18 | 21 J | … | … |
HPS70W [HPS485W] | ≤100 | 485 nqi | 585-760 | … | 19k ua | … | … | … | … |
100 [690], 100W [690W], HPS 100W [HPS690W] | ≤65 | 690m wb | 760-895 | … | 18k ib | … | … | L | 235-293 M |
100 [690], 100W [690W], | 65-100 | 620mn ib | 690-895 | … | 16 K | … | … | L | … |