20Cr2Ni4A High Tensile Steel Round bar
2024-12-09 12:48:10 Origin： Remark：0 Click：
Alloy 20Cr2Ni4 is usually produced by EAF + VD + LF / BEF followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination
TECHNICAL DATA SHEET - 20Cr2Ni4A
PRODUCT DESCRIPTION
The alloy 20Cr2Ni4 is usually produced by EAF + VD + LF / BEF followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the annealed condition.
Final heat treatment - Quenched and tempered.
PRODUCT DESCRIPTION
The alloy 20Cr2Ni4 is usually produced by EAF + VD + LF / BEF followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the annealed condition.
Final heat treatment - Quenched and tempered.
Stock Available: Round bar diam. 20 ~ 180 mm.
MATERIAL SPECIFICATIONS - GJB 1220A - 2008 0
PRODUCT PROFILE & DIMENSIONS
Round bar & rod & disc (diameter): 5.5 ~ 900mm
Square bar & flat bar: T8 ~ 400 X W 15 ~ 600 X Lmm
Plate & Sheet steel: T0.5 - 200mm X W10 - 1500mm X Lmm
TYPICAL CHEMICAL ELEMENTS (mass fraction - %)
Carbon, C (％): 0.17 ~ 0.23
Silicon, Si (％): 0.17 ~ 0.37
Manganese, Mn (％): 0.30 ~ 0.60
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.020
Chromium, Cr (％): 1.25 ~ 1.65
Nickel, Ni (%): 3.25 ~ 3.65
Molybdenum, Mo (％): -
Vanadium, V (％): -
Ferrum, Fe (%): balance.
Round bar & rod & disc (diameter): 5.5 ~ 900mm
Square bar & flat bar: T8 ~ 400 X W 15 ~ 600 X Lmm
Plate & Sheet steel: T0.5 - 200mm X W10 - 1500mm X Lmm
TYPICAL CHEMICAL ELEMENTS (mass fraction - %)
Carbon, C (％): 0.17 ~ 0.23
Silicon, Si (％): 0.17 ~ 0.37
Manganese, Mn (％): 0.30 ~ 0.60
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.020
Chromium, Cr (％): 1.25 ~ 1.65
Nickel, Ni (%): 3.25 ~ 3.65
Molybdenum, Mo (％): -
Vanadium, V (％): -
Ferrum, Fe (%): balance.
HEAT TREATMENT PRACTICE - MECHANICAL PROPERTIES UNDER ROOM TEMP.
Heat treatment temperature /℃| annealing: -.
Heat treatment temperature /℃| Normalizing: -
Heat treatment temperature /℃| Quenching: 880 oil cool
Heat treatment temperature /℃| Tempering : 200 water / air.
Hardness after annealing ≤ HBW: 269
Tensile strength, Rm ≥ MPa: 1180
Yield strength, Rp0.2 ≥ MPa: 1108
Elongation, A5 ≥ (%): 10.0
Reduction of area, Z ≥ (%): 45.0
Impact strength, AKu ≥ J: 63
TECHNICAL SALES ASSISTANCE & SERVICE
20+ years Focus On Special Steel Manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Customizing special material is welcome.
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