HSS waxay ka dhigan tahay qaybta birta godan. Qaybta birta godan (HSS) waxay ka kooban tahay oo keliya bir qaab-dhismeed kood ahaan. Saxanka birta fidsan ayaa si tartiib tartiib ah loogu beddelaa qaabab kala duwan iyadoo la isku dhejiyo geesaha sida wareegsan ama wareegsan, elliptical, square, iyo leydi inta lagu jiro habka wax soo saarka. Qaybaha godan ee birta afargeeska ah iyo leydi waxaa mararka qaarkood loo yaqaannaa qaybaha birta tuubada ama sanduuqa.
Youfa iib kulul qaybta bir godan oo khafiif ah
Qaybaha godan ee birta khafiifka ah, oo sidoo kale loo yaqaan tuubo bir ah oo qaab-dhismeed ama qaybo qaab-dhismeed oo godan, waa nooc bir ah oo loo sameeyay qayb tuubo godan ah. Qaybaha godan ee birta khafiifka ah waxaa loo kala saaraa saddex nooc oo waaweyn: qaybo godan oo leydi ah (RHS), qaybo godan oo laba jibbaaran (SHS) iyo qaybo godan oo wareegsan (CHS). Nooc kasta oo qayb godan ah wuxuu leeyahay sifooyin u gaar ah wuxuuna u adeegaa ujeedo gaar ah. Qaybaha godan ee birta khafiifka ah waxay ku jiraan labadaba darajooyin qabow iyo kuwo kulul oo la dhammeeyay, S275 iyo S355. Qaybaha godan ee birta khafiifka ah waxaa badanaa loo isticmaalaa codsiyo badan oo dhisme iyo farsamo, halkaas oo loo isticmaalo qaab-dhismeedyo, tiirar, bir-xidh iyo alwaaxyo.
Heerarka iyo heerka birta ee qaybaha godan ee birta
| Heerarka | GB/T3091 GB/T13973 | API 5L ASTM A53 | ISO65 | BS1387 EN10219 | DIN2440 | JIS G3444 |
| U dhigma heerka birta | Q195 | GR.A | √ | S195 | S195 | - |
| Q235 | GR.B | - | S235 | - | STK400 | |
| Q355 | GR.C | - | S355 | - | STK490 |
Sifooyinka kiimikada ee qaybaha godan ee qaab-dhismeedka
| Qaybta godan ee birta khafiifka ah Halabuurka kiimikada, WT ≤16mm | |||||||||||
| Heerka Caadiga ah | heerka birta | C (ugu badnaan)% | Si (ugu badnaan.)% | Mn (ugu badnaan)% | P (ugu badnaan)% | S (ugu badnaan)% | Cr (ugu badnaan)% | Ni (ugu badnaan)% | Cu (ugu badnaan)% | N (ugu badnaan)% | CEV (ugu badnaan)% |
| GB/T 700-2006 | Q235A | 0.22 | 0.35 | 1.4 | 0.045 | 0.05 | - | - | - | - | - |
| GB/T 700-2006 | Q235B | 0.2 | 0.35 | 1.4 | 0.045 | 0.045 | - | - | - | - | - |
| GB/T1591—2018 | Q355B | 0.24 | 0.55 | 1.6 | 0.035 | 0.035 | 0.3 | 0.3 | 0.4 | 0.012 | 0.45 |
Sifooyinka farsamada ee qaybaha godadka birta ah ee qaab-dhismeedka fudud
| Guryaha farsamada, WT ≤16mm | |||
| Heerka Caadiga ah | Wax-soo-saarka ugu yar xoog MPA | Xoogga jiidista MPA | Kordhinta ugu yar % |
| GB/T 700-2006 | 235 | 370-500 | 26 |
| GB/T 700-2006 | 235 | 370-500 | 26 |
| GB/T1591—2018 | 355 | 470-630 | 20 |
qaybaha godan ee birta khafiifka ah ee laga sameeyay astaanta Youfa
1. Qaybta birta godan ee galvanized
2. Qaybta birta godan ee RHS SHS
Waqtiga boostada: Luulyo-25-2025