O2 Cold Work Die Steel Description
O2 steel is a kind of low alloy tool steel with better comprehensive mechanical properties than carbon tool steel, and it has higher hardness and wear resistance.
When quenching, the deformation is small and the hardenability is good.
Because the steel contains a certain amount of vanadium, the grain size is refined and the overheating sensitivity of the steel is reduced.
At the same time, the carbides are fine and evenly distributed.
Catatan:
- 10-6di antaranya 06Cr19Ni10 umumnya berarti produksi standar Cina-1 = 10-6/K
- 1 Ω·mm²/m = 1 μΩ·m
- 1 gram/cm3 = 1kg/dm3 = 1000kg/m3
- 1 IPK = 1 kN/mm2
- 1 MPa = 1 N/mm2
AISI O2 steel introduction
AISI O2 tool steel is an oil hardening baja perkakas which is supplied in the annealed condition and characterised by its characteristics of offering good durability.
Tool steel O2 is with excellent wear resistance and its ability to hold a good cutting edge. O2 steel is a good quality general purpose tool steel often used where the expense of a high carbon high chromium baja perkakas would not be justified.
AISI O2 Steel equivalent
| Negara | Cina | Jepang | Jerman | Amerika Serikat | Inggris |
| Standar | GB/T 1299 | JIS G4404 | DIN EN ISO4957 | ASTM A681 | BS 4659 |
| Nilai | 9Mn2V | 1.2842 / 90MnCrV8 | O2 | B02 |
AISI O2 steel chemical composition
| Nilai | C | M N | P | S | Dan | Cr | V | Mo | |||||
| O2 / T31502 | 0.85 | 0.95 | 1.40 | 1.80 | 0.03 | 0.03 | . . . | 00,50 | . . . | 00,50 | . . . | 0.30 | 0.30 |
| 1.2842 / 90MnCrV8 | 0.85 | 0.95 | 1.80 | 2.20 | 0.03 | 0.03 | 0.10 | 0.40 | 0.20 | 00,50 | 00,05 | 0.20 | . . . |
| B02 | 0.85 | 0.95 | 1.50 | 1.80 | 0.035 | 0.035 | . . . | 0.40 | . . . | . . . | . . . | 0.25 | . . . |
| 9Mn2V | 0.85 | 0.95 | 1.70 | 2.00 | 0.03 | 0.03 | . . . | 0.40 | . . . | . . . | 0.10 | 0.25 | . . . |
AISI O2 steel mechanical properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
AISI O2 steel overviews
| Ukuran | Bulat | Diameter 6-1200mm |
| Piring / Datar / Blok | Ketebalan 6mm-500mm | |
| Lebar 20mm-1000mm | ||
| Proses | EAF+LF+VD+Ditempa+Perlakuan panas (opsional) | |
| Perawatan panas | Dinormalisasi; Anil; Padam; Marah | |
| Kondisi permukaan | Hitam; kupas; Dipoles; dikerjakan; digiling; Berbalik; Giling | |
| Kondisi pengiriman | Tertempa; canai panas; Digambar dingin | |
| Tes | Kekuatan tarik, kekuatan luluh, perpanjangan, luas reduksi, nilai tumbukan, kekerasan, ukuran butir, uji ultrasonik, inspeksi AS, pengujian partikel magnetik, dll. | |
| Syarat pembayaran | T/T; | |
| Persyaratan perdagangan | FOB; CIF; syarat dan ketentuan; dll.. | |
| Sedang mengemas | Paket Standar, atau sesuai Permintaan Pelanggan | |
| Waktu pengiriman | 30-45 hari | |
| Aplikasi | AISI O2 tool steel is used as tool steel for universal use, highly stressed plastic moulds, mould inserts for high hardness and abrasive stress, blanking and stamping tools for all types cutting sheet metals up to 6 mm thickness, cold forming dies, cutting and punching tools of all types, shear blades for paper, plastic and metalworking industries, reamers, thread chasers and cutting tools, pressure pads, guide pins, taps, measuring tools, precision calipers and plug gauges, woodworking tools, plastic and rubber compression moulds, deep drawing tools, clipping. | |
AISI O2 Tool Steel Heat Treatment
- Annealing : 680 – 720°C
- Hardness after annealing : Max. 220 HB
- Stress relieving : Approx. 650°C
- Hot forming : 1050 – 850°C
- Hardening : 790 – 820°C
- Quenching media : Oil, Salt bath (220 – 250°C) up to 20 mm thickness
- Hardness after quenching : 63 – 65 HRCHardness after tempering :
| 100°C | 200°C | 300°C | 400°C |
| 64HRC | 62HRC | 57HRC | 50HRC |
7: Delivery condition
(1) Untuk batangan tempa panas atau canai panas, biasanya kondisi pengirimannya adalah batangan tempa atau canai panas, anil, dan pembubutan kasar.
(2) Untuk pelat tempa panas, biasanya kondisi pengirimannya adalah permukaan yang ditempa panas, dianil, dan digiling.
(3) Untuk pelat canai panas, biasanya kondisi pengirimannya adalah canai panas, anil, permukaan hitam.
