Q420 po'latdan yuqori kuchga ega, ayniqsa normallashtirilgan yoki normallashtirilgan holatda, yuqori keng qamrovli mexanik xususiyatlarga, yuqori bosimli va yuqori bosimli anjomlarda, yuqori bosimli kemalar, ko'tarish texnikasi va boshqa yirik payvandlangan tarkibiy qismlarda ishlatilishi mumkin.
Kimyoviy tarkibi va mexanik mulki
Q420 po'latining kimyoviy tarkibi
| Kimyoviy tarkib% (GB / T 1591 - 2008) | ||||||||||||||||
| Po'lat nav | Baho | C (kam yoki unga teng) | Si (undan kam yoki unga teng) | Mn (kam yoki unga teng) | P (dan kam yoki unga teng) | S (kam yoki unga teng) | Nb (kam yoki unga teng) | V (kam yoki unga teng) | Ti (kam yoki unga teng) | Cr (kam yoki unga teng) | Ni (kichik yoki unga teng) | Cu (undan kam yoki unga teng) | N (undan kam yoki unga teng) | Mo (kam yoki unga teng) | B (undan kam yoki unga teng) | ALS (undan katta yoki unga teng) |
| Q420 | Q420A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.20 | 0.20 | 0.30 | 0.80 | 0.30 | 0.015 | 0.20 | – | – |
| Q420B | 0.035 | 0.035 | – | |||||||||||||
| Q420C | 0.030 | 0.030 | 0.015 | |||||||||||||
| Q420D | 0.030 | 0.025 | 0.015 | |||||||||||||
| Q420E | 0.025 | 0.020 | 0.015 | |||||||||||||
| Kimyoviy tarkib% (GB / T 1591 - 2018) | |||||||||||||||
| Po'lat nav | Baho | C (kam yoki unga teng) | Si (undan kam yoki unga teng) | Mn (kam yoki unga teng) | P (dan kam yoki unga teng) | S (kam yoki unga teng) | Nb (kam yoki unga teng) | V (kam yoki unga teng) | Ti (kam yoki unga teng) | Cr (kam yoki unga teng) | Ni (kichik yoki unga teng) | Cu (undan kam yoki unga teng) | N (undan kam yoki unga teng) | Mo (kam yoki unga teng) | B (undan kam yoki unga teng) |
| Q420 | Q420B | 0.20 | 0.55 | 1.70 | 0.035 | 0.035 | 0.05 | 0.13 | 0.05 | 0.30 | 0.80 | 0.40 | 0.015 | 0.20 | – |
| Q420C | 0.030 | 0.030 | |||||||||||||
2-jadval, uglerod ekvivalenti qiymati (CEV)
Chelirda qilingan po'latdan yasalgan holatda (eritma tahlil asosida)
| Cev (massa ulushi% yoki% ga teng); Nominal qalinligi yoki diametri Ø | ||||||
| Po'lat nav | Sifat darajasi | 30 dan kam yoki unga teng | 30 <ø 63 dan kam yoki unga teng | 63 <ø 150 dan kam yoki unga teng | 150 <ø 250 dan kam yoki unga teng | 250 <ø 400 dan kam yoki unga teng |
| Q420 | Q420B | 0.45 (Cev) | 0.47 | 0.48 | 0.49 | – |
| Q420C | ||||||
3-jadval, Q420 po'lat mexanik xususiyatlari (issiq o'ralgan)
| Qalinligi yoki diapazon. (Ø) mm; Kuch berish kuchi (n / mm2 ga teng yoki teng) | ||||||||||
| Po'lat nav | Sifat | The 16 dan kam yoki unga teng | 16< Ø ≤40 | 40 <ø 63 dan kam yoki unga teng | 63 <ø 80 dan kam yoki unga teng | 80 <ø 100 dan kam yoki unga teng | 100 <ø 150 dan kam yoki unga teng | 150 <Ø 200 dan kam yoki unga teng | 200 <ø 250 dan kam yoki unga teng | 250 <ø 400 dan kam yoki unga teng |
| Q420 | Q420B | 420 | 410 | 390 | 370 | 370 | 350 | – | – | – |
| Q420C | ||||||||||
| Diagramma. (Ø) mm; Keskinlik kuchi (n / mm2) | |||||
| Po'lat nav | Sifat darajasi | Ø 100 dan kam yoki unga teng | 100 <ø 150 dan kam yoki unga teng | 150 <ø 250 dan kam yoki unga teng | 250 <ø 400 dan kam yoki unga teng |
| Q420 | Q420B | 520 – 680 | 500 – 650 | – | – |
| Q420C | |||||
4-jadval, uzayish
| Diagramma. (Ø) mm; Cho'zish (%) | |||||||
| Po'lat nav | Namunaviy yo'nalish | Ø 40 dan kam yoki unga teng | 40 <ø 63 dan kam yoki unga teng | 63 <ø 100 dan kam yoki unga teng | 100 <ø 150 dan kam yoki unga teng | 150 <Ø 200 dan kam yoki unga teng | 250 <ø 400 dan kam yoki unga teng |
| Q420 | Gorizontal | 20 | 19 | 19 | 18 | – | – |
| Vertikal | 21 | 20 | 20 | 19 | – | – | |
Q420 po'lat ekvivalent, emitent evmish, Evropa evro, Germaniya Din, Yaponiya Jis, Frantsiya NF, UK BR va ISO Standart (faqat ma'lumot maqsadlari uchun)
| Xitoy | AQSh | Germaniya | Yapon | Frantsiya | Uk | Iso | |||||||
| Standart | Baho | Standart | Baho | Standart | Baho | Standart | Baho | Standart | Baho | Standart | Baho | Standart | Baho |
| GB / T 1591 - 2008 | Q420A | ASTM A572M, ASTM A633M |
Gr.60, Gr.e |
A36.201 | E420-1 | ISO 4996, ISO 4951 |
HS420D E420cc |
||||||
| GB / T 1591 - 2008 | Q420B | ASTM A572M, ASTM A633M |
Gr.60, Gr.e |
Win en 10113-2, Win en 10113-3 |
S420NL, S420M |
Jis g3124 | SET295, Sev345 |
Nf en 10113-2, Nf en 10113-3 |
S420NL, S420M |
BS kemasi 10113-2, BS en 10113-3 |
S420nl S420M |
ISO 4996, ISO 4951 |
HS420D E420cc |
| GB / T 1591 - 2008 | Q420C | ASTM A678M, ASTM A656M |
Gr.b, Turtmoq |
Win en 10113-2, Win en 10113-3 |
S420NL, S420M |
Jis g3124 | SET295, Sev345 |
Nf en 10113-2, Nf en 10113-3 |
S420NL, S420M |
BS kemasi 10113-2, BS en 10113-3 |
S420nl S420M |
ISO 4996, ISO 4951 |
HS420D E420cc |
| GB / T1591 - 2008 | Q420D | ASTM A678M, ASTM A656M |
Gr.b, Turtmoq |
Win en 10113-2, Win en 10113-3 |
S420NL, S420M |
Jis g3124 | SET295, Sev345 |
Nf en 10113-2, Nf en 10113-3 |
S420NL, S420M |
BS kemasi 10113-2, BS en 10113-3 |
S420nl S420M |
||
| GB / T1591 - 2008 | Q420E | ASTM A678M, ASTM A656M |
Gr.b, Turtmoq |
Win en 10113-2, Win en 10113-3 |
S420NL, S420M |
Jis g3124 | SET295, Sev345 |
Nf en 10113-2, Nf en 10113-3 |
S420NL, S420M |
BS kemasi 10113-2, BS en 10113-3 |
S420nl S420M |
||
