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Specifications Alloy 17-4PH data sheet, Alloy 17-4PH Chemical, 17-4PH Properties Steelmelting (ESR refined), Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic flaw detection test, Cold working or Machined. All of these materials conform to Military standard, nuclear power. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
MATERIAL TECHNICAL DATA SHEET - Alloy 17-4PH
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
MATERIAL CATEGORY: Austenitic high-tensile superalloy & Precipitation hardening steel
HS CODE: 72221100 / 72221900 / 72222000 / 72223000
CHEMICAL COMPOSITION (WEIGHT %)
C (％): ≤ 0.055
Si (％): ≤ 0.40
Mn (％): ≤ 0.60
P (％) ≤: 0.030
S (％) ≤: 0.010
Cr (％): 15.0 ~ 16.0
Ni (％): 3.80 ~ 4.50
Mo (％): -
Nb (%): 0.15 ~ 0.45
Cu (%): 3.00 ~ 3.70
Co (%): -
W (%): -
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Tensile strength, σb/≥ MPa: 1070
Yield strength, σ0.2/≥ MPa: 1000
Elonghation, δ ≥(％): 12.0
Reduction of area, ф ≥ (％): 45.0
Hardness | HB: 35HRC min.
Superalloy is widely used to produce the high temperature components for gas turbine in the field of aviation, naval vessels and industry, such as turbine blade, guide blade, turbine disc, high pressure compressor disc, combustor, and also production of energy conversion devices, such as aerospace craft, rocket motor, nuclear reactor, petrochemical equipments, coaly transforming and so on.
The alloy is usually produced by AOD / VIM 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 bright surface in the solution annealed condition.
Final heat treatment - solution treated + Aged
FORMS AND DIMENSIONS
Round bar (Diameter): 5.5mm to 550mm
Square bar / Flat bar: 3mm to 500mm
Heavy/middle plate via hot rolled: T60 - 400mm X W70 - 1500mm X L1000-12000mm
Sheet steel via cold rolled: T0.5 - 6mm X W100 - 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
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