4Cr13 Steel Plate
4Cr13 standard: GB/T 1220-1992. The 4Cr13 characteristic is higher than 3Cr13 hardness and good corrosion resistance after quenching. 4Cr13 steel plate chemical composition: 4Cr13 steel plate mechanical property Hardness: annealing, less than 201HB, the indentation diameter 3.9~4.3mm; quenching,...
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Description
Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of 4cr13 steel plate in China. With abundant experience, we warmly welcome you to wholesale customized 4cr13 steel plate from our factory. For price consultation, contact us.
4Cr13 standard: GB/T 1220-1992. The 4Cr13 characteristic is higher than 3Cr13 hardness and good corrosion resistance after quenching.
4Cr13 steel plate chemical composition:
C |
Si |
Mn |
S |
P |
Cr |
Ni |
|
0.36~0.45 |
≤0.60 |
≤0.80 |
≤0.030 |
≤0.035 |
12.00~14.00 |
≤0.60 |
4Cr13 steel plate mechanical property
Hardness: annealing, less than 201HB, the indentation diameter 3.9~4.3mm; quenching, more than 50HV
Specification and metallographic structure of heat treatment:
Specifications for heat treatment: 1) annealing at 800~900 DEG C or chilled at about 750 DEG C; 2) quenching, 1050~1100 DEG C, oil cold. (3) Tempering, quick cooling at 200~300 DEG C.
Microstructure: the microstructure is characterized by Martensite.
Delivery status: 4Cr13 steel plate is delivered in annealed condition. Forging: oil quenching for some crack sensitivity of die steel, forging heating for rapid heating, preferably a preheating in 650-750 degrees, forging temperature is 1130-1150 degrees, the final forging temperature should be higher than 800-850 degrees, the maximum temperature of ingot forging. The lower limit temperature should be taken during blank forging.
Gnee steel is specialized in supplying 4Cr13 steel plate. We have 17 years experience in the exportation of 4Cr13 steel plate. Please feel free to contact us.
Heat Treatment of 4Cr13 steel
1.Annealing
750 to 800°C for about 2 to 5 hours
slow controlled cooling of 10 to 20°C per hour to about 650°C;
further cooling in air, max. 200 HB
2.Hardening
1000 to 1050°C
15 to 30 minutes keeping curing temperature
quenching in oil/compressed gas/hot bath
obtainable hardness: 53 – 56 HRC
3.Tempering
slow heating to tempering temperature immediately after hardening, to 180 to 300 °C depending on desired hardness
1 hour per 20 mm: min. 2 hours
4Cr13 steel Range of products
| Product type | Products | Dimension | Processes | Deliver Status |
| Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
| Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
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