| Jenis bayaran: | L/C,D/P,T/T |
| Incoterm: | CIF,EXW,CFR,FOB |
| Pengangkutan: | Ocean,Land,Express |
| Port: | Qingdao,Tianjin,Shanghai |
Model No.: P20, 1.2311, 1.2312, 3Cr2Mo
Standard: AiSi, ASTM, bs, MAKAN, GB, JIS
Tempat Asal: China
Proses Pengeluaran: Hot Rolled
Keluli Khas: Keluli Acuan
Bertolak Ansur: ± 1%
Perkhidmatan Pemprosesan: Membengkok, Kimpalan, Menyahtapis, Menumbuk, Keratan
| Unit Jualan | : | Ton |
| Contoh Gambar | : |
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Parameter produk
1. Standard International
| GB | DIN | ASIA | JIS |
| 3Cr2MnNi | 1.2311 | P20 | PDS-S |
| 1.2311 | C | Si | Mn | Cr | Mo | S | P |
| 0.35-0.45 | 0.20-0.40 | 0.60-1.00 | 1.80-2.10 | 0.30-0.55 | ≤0.003 | ≤0.003 |
| Flat Bar Size | Round Bar Size(mm) | ||||
| Thickness | Width | Length | Diameter | Length | |
| 10-700 | 155-2200 | 2000-6000 | 20-200 | 2000-6000 | |
4. Teknik produk:
Pengenalan:
Keluli acuan rendah karbon atau keluli kumpulan P adalah pelbagai jenis yang termasuk keluli P2, P3, P4, P5, P6, P20, dan P21. Chromium dan nikel adalah unsur -unsur aloi utama yang terdapat dalam keluli Kumpulan P.
Keluli alat P20 adalah nitrided atau carburized. Keluli -keluli ini mampu dimesin ke dalam acuan dan acuan yang kompleks dan besar. Keluli P20 kebanyakannya digunakan dalam keadaan carburized. Kehadiran kromium dan nikel meningkatkan ketangguhan dan kekerasan keluli P20.
| Tempering: | P20 tool steels are tempered at 482-593°C (900 to 1100°F) for a Rockwell C hardness of 28 to 34. |
| Annealing: | Annealing takes place at 760-788°C (1400 to 1450°F) and then the steels are cooled slowly in the furnace at a temperature less than 4°C (40°F) per hour. |
| Cold Working: | P20 tool steels are capable of being readily cold worked by using conventional tooling methods with the alloy in the annealed condition. |
| Welding: | Conventional methods are used for welding of P20 tool steels. |
| Forging: | P20 tool steels are forged at 1093°C (2000°F) down to 899°C (1650°F). Forging below 871°C (1600°F) is not recommended for these steels. |
| Forming: | P20 tool steels can be readily formed by conventional methods in the annealed condition. |
| Machinability: | P20 tool steels have excellent machinability at about 80% that of water hardening steels. |
| Heat Treatment: | P20 tool steels are heated to 871-899°C (1600-1650°F) in the carburizing medium during the carburizing process. After being carburized, these steels are heated to 816-871°C (1500-1600°F) in order to be hardened and then held for 15 minutes and finally oil quenched. |
| Applications: | P20 tool steels are used for low-temperature applications that include injection molds and die casting dies. |
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