Yuqori aniqlikdagi choksiz po'lat quvur
ishlab chiqarish standartlari:
GB / T 3639, GB / T 1591, GB / T 699, DIN2391, EN10305-1, ASTM A519
etkazib berish sharti:
| etkazib berish sharti | Kod | Tushuntiring |
| Sovuq chizish yoki sovuq haddeleme / qattiq | + C | Oxirgi sovuq chizish yoki issiqlik bilan ishlov bermasdan sovuq haddeleme |
| Sovuq chizilgan yoki sovuq prokatdan so'ng tavlanishni engillashtiradigan stress | + SR | Oxirgi sovuq tortishdan yoki sovuq haddelenmeden so'ng, po'lat quvur stressni yumshatish yo'li bilan yo'q qilinadi |
| tavlash | + A | Oxirgi sovuq tortishdan keyin po'lat quvur tavlanadi |
| normallashtirish | + N | Oxirgi sovuq tortishdan keyin po'lat quvur normallashtiriladi |
20 #, 45 #, Q345B, Q345D, 25Mn, 27SiMn, E355, SAE1026, STKM13C, E460, 4130, 4140
Kimyoviy tarkibi:
| Kimyoviy tarkibi,% | |||||||||
| po'lat markasi | C | Si | Mn | P | S | Kr | Ni | V | Al |
| ≤ | ≥ | ||||||||
| 20# | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.250 | 0.250 | / | / |
| 45# | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | 0.250 | 0.300 | / | / |
| Q345B | .20.2 | -0.5 | 1.00-1.60 | 0.030 | 0.030 | 0.300 | 0.250 | 0.08 | / |
| Q345D | .20.2 | -0.5 | 1.00-1.60 | 0.030 | 0.030 | 0.250 | 0.250 | 0.150 | 0.015 |
| 25 million | 0.22-0.29 | 0.17-0.37 | 0.70-1.00 | 0.035 | 0.035 | / | / | / | / |
| 27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | 0.035 | 0.035 | 0.300 | 0.300 | / | / |
| E355 (ST52) | .20.22 | -0.55 | -1.6 | 0.025 | 0.025 | 0.250 | 0.250 | / | / |
| SAE1026 | 0.22-0.28 | 0.15-0.35 | 0.60-0.90 | 0.040 | 0.050 | / | / | / | / |
| E460 | .20.22 | .0.60 | 1.20-1.60 | 0.030 | 0.030 | 0.300 | 0.800 | 0.20 | 0.02 |
| 4130 | 0.28-0.33 | 0.15-0.35 | 0.40-0.60 | 0.040 | 0.040 | 0.80-1.10 | / | / | / |
| 4140 | 0.36-0.43 | 0.15-0.35 | 0.75-1.00 | 0.040 | 0.040 | 0.80-1.10 | / | / | / |
Mexanik xususiyat
| po'lat markasi | Yetkazib berish holati | |||||||||||
| + C | + SR | + A | + N | |||||||||
| Rm / Mpa | A /% | Rm / Mpa | Rel / Mpa | A /% | KV2 / J | Rm / Mpa | A /% | Rm / Mpa | Rel / Mpa | A /% | KV2 / J | |
| 20 (ST45) | 550 | 5 | 520 | 375 | 12 | - | 390 | 21 | 440 ～ 570 | 255 | 21 | - |
| 45 | 645 | 4 | 600 | 450 | 6 | - | 590 | 14 | 540 | 340 | 18 | - |
| 345-savol | 680 | 8 | 580 | 450 | 10 | 27 | 450 | 22 | 490 ～ 630 | 355 | 22 | 34 |
| 25Mn (SAE1026) | 650 | 6 | 560 | 430 | 10 | - | 430 | 20 | 460 | 300 | 20 | - |
| E355 (ST52) | 680 | 8 | 580 | 450 | 10 | 27 | 450 | 22 | 490 ～ 630 | 355 | 22 | 34 |
| 27SiMn | 750 | 4 | 650 | 520 | 8 | - | 600 | 10 | 650 | 430 | 14 | - |
| E460 | 690 | 620 | 13 | |||||||||
Izoh: Rm: tortishish kuchi; Rel: past rentabellikga chidamlilik; Javob: cho'zish;
KV2: zarba yutish energiyasi.
20 ° C-0 ° C -20 ° C -40 ° C ga mos ravishda B, C, D, E ga mos ravishda Q345 zarba yutish energiyasi.
Biz tashqi diametri 4mm-273mm, yuqori aniqlikdagi sovuq po'lat quvur, sovuq haddelenmiş po'lat quvur, nozik po'lat quvur, zanglamaydigan po'lat quvur, zanglamaydigan po'lat quvur devor qalinligi 0,1 mm-25 mm, aniqligi /+0,025 mm gacha, pürüzlülüğü 0,2.
Bu asosan gidravlik tizim quvurlari, avtomobil ishlab chiqarish quvurlari, harbiy sanoat, qurilish texnikasi, temir yo'l lokomotivlari, aerokosmik, kemasozlik, neft-kimyo, elektr stantsiyalari, qozon uskunalari va boshqalarda qo'llaniladi.
Mahsulotimizning 6 ta asosiy xususiyati mavjud:
1. Ichki devor va tashqi devorda oksidli qatlam yo'q.
2. Katta bosim ostida oqish yo'q.
3. Yuqori aniqlik.
4. Yuqori tugatish.
5. Deformatsiyasiz sovuq bükme.
6. Yonish, siqilish, tekislash, yoriqlar yo'q.
