X5CrNiCuNb17-4-4
2026-03-12 15:55:00 Origin： Remark：0 Click：
Precipitation hardening steel X5CrNiCuNb17-4-4 flat bar stockist, shaft X5CrNiCuNb17-4-4 round bar, plate properties from steelmaking, hot bloomed, hot forged, rolled, heat treated
Official test report: issued by TUV - SGS - BV
TECHNICAL DATA SHEET: X5CrNiCuNb17-4-4
Special melting process: EAF + AOD + ESR
Material category: 15.5Cr - 4.0Ni - 3.5Cu stainless steel
HS code for Customs: 72221100 / 72221900 / 72222000
Material specifications: BS EN 10088-3
Typical chemical compositions (mass weight %)
Carbon, C (％): ≤ 0.055
Silicon, Si (％): ≤ 1.00
Manganese, Mn (％): ≤ 0.50
Phosphorus, P (％): ≤ 0.030
Sulfur, S (％): ≤ 0.015
Chromium, Cr (％): 15.0 ~ 16.0
Nickel, Ni (％): 3.00 ~ 4.50
Molybdenum, Mo (％): ≤ 0.60
Niobium, Nb (％): 0.15 ~ 0.35
Silicon, Si (％): ≤ 1.00
Manganese, Mn (％): ≤ 0.50
Phosphorus, P (％): ≤ 0.030
Sulfur, S (％): ≤ 0.015
Chromium, Cr (％): 15.0 ~ 16.0
Nickel, Ni (％): 3.00 ~ 4.50
Molybdenum, Mo (％): ≤ 0.60
Niobium, Nb (％): 0.15 ~ 0.35
Copper, Cu (%): 3.00 ~ 3.70
MECHANICAL PROPERTIES AND HEAT TREATMENT CYCLE
Condition of thermal treatment: +AT (solution treatment)
Hardness ≤ HBS: 360
Yield strength, Rp0.2 ≥ MPa: -
Tensile strength, Rm / MPa: ≤ 1200
Elongation, A5 ≥ (％): -
Elongation, A5 (transversal) ≥ (％): -
Impact absorbing power Akv ≥ J: -
Yield strength, Rp0.2 ≥ MPa: -
Tensile strength, Rm / MPa: ≤ 1200
Elongation, A5 ≥ (％): -
Elongation, A5 (transversal) ≥ (％): -
Impact absorbing power Akv ≥ J: -
Condition of thermal treatment: P930
Hardness ≤ HBS: -
Yield strength, Rp0.2 ≥ MPa: 720
Tensile strength, Rm / MPa: 930~1100
Elongation, A5 ≥ (％): -16
Impact absorbing power Akv ≥ J: 40
Hardness ≤ HBS: -
Yield strength, Rp0.2 ≥ MPa: 720
Tensile strength, Rm / MPa: 930~1100
Elongation, A5 ≥ (％): -16
Impact absorbing power Akv ≥ J: 40
Condition of thermal treatment: P960
Hardness ≤ HBS: -
Yield strength, Rp0.2 ≥ MPa: 790
Tensile strength, Rm / MPa: 960~1160
Elongation, A5 ≥ (％): 12
Impact absorbing power Akv ≥ J: -
Hardness ≤ HBS: -
Yield strength, Rp0.2 ≥ MPa: 790
Tensile strength, Rm / MPa: 960~1160
Elongation, A5 ≥ (％): 12
Impact absorbing power Akv ≥ J: -
Those materials are widely used in manufacturing the high strength, anti-corrosive forge piece for planes, gas turbine and other machined parts.
PRODUCT DESCRIPTION
The alloy is usually produced by EAF / AOD followed by electroslag refining (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied black/bright in the annealed condition.
Final heat treatment - solution treatment + aged
The alloy is usually produced by EAF / AOD followed by electroslag refining (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied black/bright in the annealed condition.
Final heat treatment - solution treatment + aged
PROFILE & DIMENSIONS
Rod / round bar / disc (diameter): 6.0 to 950 mm
Square bar / flat bar: 10 to 600 mm
Length: random length or based on the customer's special requirement.
Rod / round bar / disc (diameter): 6.0 to 950 mm
Square bar / flat bar: 10 to 600 mm
Length: random length or based on the customer's special requirement.
Heavy / middle plate via hot rolled: T6 ~ 300 X W20 ~ 1200 X L1000 ~ 12000 mm
Sheet steel via cold rolled: T0.5 ~ 6 X W10 ~ 1000 X L1000 ~ 2000 mm
Steel strip via cold rolled: T0.5 ~ 3 X W10 ~ 200 X L mm (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry or help, pleased to EMAIL our resident team of qualified production engineers - Email: sales@ccsteels.com
Sheet steel via cold rolled: T0.5 ~ 6 X W10 ~ 1000 X L1000 ~ 2000 mm
Steel strip via cold rolled: T0.5 ~ 3 X W10 ~ 200 X L mm (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry or help, pleased to EMAIL our resident team of qualified production engineers - Email: sales@ccsteels.com
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