Imbaraga nyinshi zifite icyuma giciriritse icyuma ASTM A709GR.50W nanone yitwa icyuma cyangiza ikirere A709 Icyiciro cya 50W kubwinyungu zayo mukurwanya kwangirika kwikirere. Ukurikije ibintu bitandukanye byingenzi bya shimi birimo, A709 Icyiciro cya 50W cyagabanijwe nkubwoko bwa A709Gr50w A, ubwoko bwa A709Gr50w B, ubwoko bwa A709Gr50w C.Ibiciro bitatu byibyuma bihwanye nibisobanuro ASTM A 588 / A 588M A588 Icyiciro A, A588 Icyiciro B Icyiciro cya A588 C. Hasi icyuma gisya icyuma A709 Icyiciro cya 50W nacyo cyari gifite ingufu nkeya zingana na 345 Mpa nka A709 Icyiciro cya 50 Icyuma.
A709 Gr.50W ikirere cyerekana ibyuma, kizwi cyane kubera umutungo wacyo mukurwanya kwangirika kwikirere. Icyuma cya A709 Icyiciro cya 50W icyuma gikoreshwa cyane mumashini yubwubatsi, imashini zicukura amabuye, amakamyo, ibiraro, inyubako zubaka ingufu nibindi,
Ibisabwa bya tekiniki & Serivisi zinyongera:
Kubindi bintu byinshi muri A709 Gr.50S icyuma, nyamuneka ubisuzume bikurikira;
A709 Icyiciro cya 50S Ibigize imiti Isesengura ubushyuhe
Ikintu | Imiti% |
C, max | 0.23 |
Mn | 0.50-1.60A |
Si, max | 0.40 |
V, max | 0.15B |
Nb, max | 0.05B |
P, max | 0.035 |
S, max | 0.045 |
Cu, max | 0.60 |
Ni xma | 0.45 |
Cr, max | 0.35 |
Mo, max | 0.15 |
A709 Icyiciro | Umubyimba mm |
Tanga umusaruro [MPa] |
Tensile [MPa] | Kurambura Min% | kugabanuka Min % |
HB | |||
Isahani | Ibyuma byubaka | ||||||||
8in [200mm] | 2in [50mm] | 8in [200mm] | 2in [50mm] | ||||||
36[250] | ≤100 | [250] min | 400-550 | 20 | 23 | 20 | 21 | … | … |
[250] min | 400min | … | … | 20 | 19 | … | … | ||
50[345] | ≤100 | 345min | 450min | 18 | 21 | 18 | 21F | … | … |
50S [345S] | G. | 345-450HI | 450minH | … | … | 18 | 21 | … | … |
50W [345W] HPS50W [HPS345W] |
≤100 | 345min | 485min | 18 | 21 | 18 | 21J | … | … |
HPS70W [HPS485W] | ≤100 | 485min | 585-760 | … | 19K | … | … | … | … |
100 [690], 100W [690W], HPS100W [HPS690W] | ≤65 | 690minB | 760-895 | … | 18K | … | … | L. | 235-293M |
100 [690], 100W [690W], | 65-100 | 620minB | 690-895 | … | 16K | … | … | L. | … |