20# Dhuumaha birta
GB3087: Tuubo bir ah oo aan kala go 'lahayn ee kuleyliyaha cadaadiska hooseeya iyo midka dhexe
GB9948: Dhuun bir ah oo aan kala go 'lahayn oo loogu talagalay dildilaaca batroolka
GB6479: Tuubooyinka birta ah ee aan kala go'a lahayn ee qalabka bacriminta cadaadiska sare
GB/T17396:Kulul duuban oo bir bir ah oo aan fiicneyn oo loogu talagalay qalabka hawo-mareenka
20 # bir ahwaxay ka tirsan tahay birta kaarboon-kaarboon-yar ee tayadeedu sarreyso, qabow-baxsan iyo birta adag.Birtu waxay leedahay xoog hoose, adkeysi wanaagsan, caag iyo alxan.Waxay ka tirsan tahay birta kaarboon-kaarboon-yar ee tayadeedu sarreyso, qabow-baxsan iyo birta adag.Birtu waxay leedahay xoog hoose, adkeysi wanaagsan, caag iyo alxan.Guud ahaan waxaa loo isticmaalaa in lagu soo saaro tuubooyin aan fiicneyn oo leh cadaadis hoose iyo shuruudaha adag ee adag.
Darajo | Baaxadda cabbirka | ||||||||||||||
| OD | WT | |||||||||||||
20# | 21 ilaa 1200 | 3 ilaa 130 |
Darajo | Qayb kiimiko % | ||||||||||||||
| C | Si | Mn | Cr | Mo | V | Ti | B | Ni | Cu | Nb | N | W | P | S |
20# | 0.17- | 0.17- | 0.35- | ≤ | - | - | - | - | ≤ | ≤ | - | - | - | ≤ | ≤ |
Darajo | Hantida Makaanikada | ||||||||||||||
| Xoogga Jilitaanka (MPa) | Xoogga Jilitaanka (Mpa) | Kordhinta (L/T) | Saamaynta (J) Toosan/Horezonal | Adag (NB) | ||||||||||
20# | 410- | ≥ | ≥20% | ≥40/27 | - |
1. Muddada keenista: Alaabada waaweyn xaqiiji wakhtiga ugu yar ee keenista, badiyaa 5-7 maalmood.
2. Maareynta Qiimaha: Khayraadka gacanta iyo waayo-aragnimada ballaadhan ee maaraynta kharashku waxaynu ku siin karnaa saldhigga isku-darka kheyraadka ugu habboon baahida macaamiisha
3. Khayraadka wax-shiidka ee ugu sarreeya: Waxa uu ku siin karaa shahaado dhammaystiran iyo dukumentiyo aqooneed si loo caddeeyo tayada sare iyo bixinta taageerada tartanka.
4. Nidaamka QC adag: Kormeerka qulqulka oo dhan ee goobta, si buuxda u tijaabi oo warbixin, kormeer dhinac saddexaad
5. Adeegga ka dib: dhammaan alaabooyinka la raadin karo, Baafinta isha mas'uuliyadda