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17-4PH Solid Shaft / Hollow Shaft

    Buy cheap 17-4PH Solid Shaft / Hollow Shaft from wholesalers
     
    Buy cheap 17-4PH Solid Shaft / Hollow Shaft from wholesalers
    • Buy cheap 17-4PH Solid Shaft / Hollow Shaft from wholesalers

    17-4PH Solid Shaft / Hollow Shaft

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    Delivery Time : 10–30 Working Days
    Payment Terms : T/T,L/C AT SIGHT
    Brand Name : HA Steel
    • Product Details
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    17-4PH Solid Shaft / Hollow Shaft

    Product Highlights
    • 17-4PH martensitic precipitation hardening solid shaft & hollow shaft, UNS S17400, EN 1.4542, comply with ASTM A564 bar standard
    • Cu & Nb alloyed precipitation strengthening system, adjustable strength & hardness via different aging heat treatments
    • Multiple standard aging grades: H900 / H1025 / H1075 / H1150 / H1150D for diverse load & toughness demands
    • Corrosion performance equivalent to 304 stainless steel, far superior to regular 410/440C martensitic steel
    • Fully magnetic after heat treatment, low distortion after aging, ideal precision high-strength shaft blanks
    • Two stock forms: solid round shaft & seamless hollow shaft, save deep boring processing cost for hollow parts
    • Custom diameter, wall thickness, length & full CNC turning, boring, threading, splining per CAD drawings
    • Core material for aerospace, oil & gas, valve, mold, medical and high-strength mechanical spindles
    Product Overview

    This series of 17-4PH solid and hollow shafts are produced via hot rolling + cold drawing seamless piercing forming process. Base material is supplied under Condition A (Solution Annealed soft state) for easy CNC machining; customers can select target aging specification to achieve customized hardness and toughness.

    17-4PH (AISI 630 / 1.4542) is the most widely used precipitation hardening stainless steel. It combines medium corrosion resistance and ultra-high mechanical strength, filling the gap between common martensitic stainless steel and high-cost nickel superalloys. Solid shaft is for solid spindle, bolt and shaft core; seamless hollow shaft eliminates deep boring operation on solid bar, greatly reducing material waste and machining cycle. Both stock types are widely machined into pump shafts, valve stems, aerospace structural spindles, oilfield downhole components, mold core shafts and medical instrument rotating parts for aerospace, petroleum, chemical, medical and mold industries.

    Material Grade Characteristics – 17-4PH (UNS S17400 / 1.4542)
    • Martensitic PH stainless steel strengthened by copper-niobium precipitates after low-temperature aging
    • Condition A soft solution state for all machining workpieces before aging heat treatment
    • H900 aging delivers maximum hardness & tensile strength for heavy wear components
    • H1150 / H1150D double aging obtains optimal toughness & anti-SCC performance for sour gas service (NACE compliant)
    • Balanced corrosion resistance comparable to 304, better than 410/420/440C martensitic grades
    • Low thermal distortion after aging, stable dimensional accuracy for precision equipment shafts
    • Good weldability, can be aged after welding without large deformation
    Chemical Composition (Weight %)
    GradeEN No.C ≤Si ≤Mn ≤P ≤S ≤CrNiCuNb+TaMo ≤Fe
    17-4PH1.45420.071.001.000.0400.03015.0–17.53.0–5.03.0–5.00.15–0.450.60Balance
    Mechanical Properties (ASTM A564 Standard Heat Treatment States)
    Delivery ConditionMin Tensile MPaMin Yield MPaMin Elongation %Hardness Reference
    Condition A (Solution Annealed)104069018≤38 HRC
    H900 (Aged 482℃)131011701040–47 HRC
    H1025 (Aged 552℃)107010001235–42 HRC
    H1075 (Aged 579℃)10008601433–39 HRC
    H1150 (Aged 621℃)9307251628–37 HRC
    H1150D Double Aged8607251826–33 HRC

    Unified Base Delivery Condition: Hot Rolled / Cold Drawn, Solution Annealed (Condition A), Stress‑Relieved, Pickled

    Related Material Grades
    • PH Stainless Steel: 17-4PH, 15-5PH, 17-7PH
    • Martensitic Stainless Steel: 410, 420, 431, 440C
    • Austenitic Stainless Steel: 304, 316L, 321, 904L
    • Duplex Stainless Steel: 2205, 2507, S32750
    • Ferritic Stainless Steel: 409, 430, 444
    • Nickel Alloys: Monel400/K500, Inconel600/625, Hastelloy C276
    • Alloy Steel: 4140, F22, F91, A105
    Key Advantages
    1 Adjustable Hardness via Aging Treatment

    Start from soft Condition A blank for full CNC machining, then age to H900~H1150 grades to match strength/toughness requirements of different working loads.

    2 Better Corrosion Than Regular Martensite

    Chromium-nickel-copper composite formula delivers corrosion resistance equivalent to 304, far outperforming 410/440C in atmospheric and weak acid environments.

    3 Low Deformation After Aging

    Minimal dimensional shift during precipitation hardening, perfectly suitable for precision shaft and mold core parts with tight tolerance.

    Double Stock Option: Solid & Hollow Shaft

    Seamless hollow shaft avoids heavy deep boring on solid bar, greatly cuts processing time and raw material loss for hollow spindle products.

    NACE Qualified H1150D Grade

    Double aged state improves sulfide stress cracking resistance, approved for oil & gas sour well downhole shaft components.

    Typical Applications
    • Aerospace: Landing gear spindles, engine high-strength rotating shafts, aircraft fastener blanks
    • Oil & Gas: Sour well pump shafts, wellhead valve stems, downhole tubular spindles (H1150D)
    • Mold Industry: High-strength mold core shafts, injection mold ejector pins
    • Chemical Equipment: High-pressure valve spindles, agitator shafts, medium-corrosion pump rods
    • Medical Instrument: Surgical equipment shafts, precision medical fixture blanks
    • General Machinery: High-load gear shafts, hydraulic cylinder rods, bearing mandrels
    Processing Service

    We provide integrated hot rolling & seamless piercing hollow shaft production, full custom CNC processing per customer CAD drawings:

    • Fixed-length cutting, centering, external turning, hollow inner boring, chamfering
    • Threading, spline machining, cylindrical precision grinding, mirror polishing
    • Full aging heat treatment service: H900 / H1025 / H1075 / H1150 / H1150D
    • Pickling, passivation surface anti-corrosion finishing

    We supply 17-4PH solid shaft & seamless hollow shaft blanks and finished machined spindles for aerospace, oil gas, mold and medical global industrial clients.

    Quality Assurance
    • 100% UT & Eddy Current inspection for rolling & piercing internal defects
    • Full batch tensile, yield, hardness mechanical test for each aging grade
    • High-precision micrometer & CMM to control diameter, wall thickness, straightness tolerance
    • Spectrometer full chemical composition test per heat lot
    • Metallographic martensite-precipitate microstructure inspection after aging

    Mill Test Certificate EN 10204 3.1 can be issued and delivered together with shipment documents before delivery.

    Packing & Delivery
    Packing
    • Inner: Individual anti-rust plastic sleeve + waterproof film full wrap
    • Outer: Reinforced fumigated wooden pallet with separation strips to prevent scratch & bending
    • Custom heavy-duty export packaging for large-diameter long shafts available upon request
    Lead Time

    Normally 10 – 45 working days after receiving advance payment. Exact lead time depends on shaft type (solid/hollow), diameter, length, order quantity and custom aging/machining demands.

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