1.6956
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Alloy 1.6956 Specifications, 1.6956 Chemical, 1.6956 Mechanical properties steelmaking, Electroslag remelting, Ultrasonic testing, Hot forging, folling, Heat treatment
TECHNICAL DATA SHEET - WS 1.6956
MATERIAL CATEGORY - hardened and tempered steel
PRODUCT DESCRIPTION
The alloy is usually produced by EAF /VD /LF 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, or bright annealing specially.
Final heat treatment - Q + T.
MATERIAL SPECIFICATIONS - DIN EN 10083-2 (2006), DIN 17200 (1987)
CHEMICAL COMPOSITION (mass weight %)
Carbon, C (％): 0.28 ~ 0.38
Silicon, Si (％): ≤ 0.40
Manganese, Mn (％): 0.15 ~ 0.40
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.035
Chromium, Cr (％): 1.00 ~ 1.70
Molybdenum, Mo (％): 0.30 ~ 0.60
Nickel, Ni (％): 2.90 ~ 3.80
Vanadium, V (％): 0.08 ~ 0.25
Silicon, Si (％): ≤ 0.40
Manganese, Mn (％): 0.15 ~ 0.40
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.035
Chromium, Cr (％): 1.00 ~ 1.70
Molybdenum, Mo (％): 0.30 ~ 0.60
Nickel, Ni (％): 2.90 ~ 3.80
Vanadium, V (％): 0.08 ~ 0.25
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃ 1050～850
Heat treatment temperature /℃ | annealing: 650～700
Heat treatment temperature /℃ | annealing: 650～700
Heat treatment temperature /℃ | Normalizing: 850～880
Heat treatment temperature /℃ | Quenching: 830~850oil
Heat treatment temperature /℃ | Tempering: 450~650
Hardness after annealing ≤ HBS: 265
Heat treatment temperature /℃ | Quenching: 830~850oil
Heat treatment temperature /℃ | Tempering: 450~650
Hardness after annealing ≤ HBS: 265
Steel dimension /mm: 41 - 100
Tensile strength, Rm ≥ MPa: 1270 ~ 1470
Yield strength, Rp0.2 ≥ MPa: 1030
Elongation, A5 ≥ (%): 7.0
Reduction of area, Z ≥ (%): 40
Impact, |AKV≥/J: 20
Tensile strength, Rm ≥ MPa: 1270 ~ 1470
Yield strength, Rp0.2 ≥ MPa: 1030
Elongation, A5 ≥ (%): 7.0
Reduction of area, Z ≥ (%): 40
Impact, |AKV≥/J: 20
Steel dimension /mm: 101 - 160
TS, | σb ≥ MPa: 1130 ~ 1320
YS, | σs ≥ MPa: 865
EL, | δ5 ≥ (%): 8.0
RA, | ψ ≥ (%): 45
Impact, | AKv ≥ J: 30
TS, | σb ≥ MPa: 1130 ~ 1320
YS, | σs ≥ MPa: 865
EL, | δ5 ≥ (%): 8.0
RA, | ψ ≥ (%): 45
Impact, | AKv ≥ J: 30
PRODUCT PROFILE & DIMENSIONS
Round bar / disc (diameter): 5.5 to 550mm
Square bar / flat bar: 8 to 600mm
Steel sheet: thickness 0.50 ~ 6.00, width 1000 X length 1000/2000mm - Standard size
Length: random length or based on the customer's special requirement
Forged steel shape: stepped shaft, and other different shapes based on OEM.
TYPICAL APPLICATIONS
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut, Multidiameter shaft, Pressure vessel.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to Email or call our resident team of qualified production engineers. Email: sales@ccsteels.com
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