Hot Isostatic Pressing - Hip

HIP technology gives you several advantages such as superior material properties combined with flexibility regards to shape. This gives potential to save time and money on operations such as machining and welding. Elimination of welds in critical areas contributes to increased process safety. Typical material grades are: Duplex, Super Duplex, 6Mo and Inconel 625.

 

The PM/HIP Process

The production process from the melt to the finished product takes place in three stages. Powder is produced by inert gas atomization. The Powder is canned in sheet metal capsules, giving the product the desired shape. The capsules are consolidated into full density under high pressure and temperature by Hot Isostatic Pressing.

   

1 Melting and atomization

The melt which is produced in an induction furnace is tapped into an induction heated ladle where further alloying elements can be added in a protective atmosphere. When the melt is tapped from the bottom of the ladle it is discharged directly into the atomization chamber. The molten steel is broken up by jets of inert gas and the atomized melt solidifies into small spherical particles of high purity and low oxygen content and with a diameter less than 500 micron. The powder is stored in hermetically sealed vessels.

   

2 Canning

The powder is canned in capsules of mild steel which are produced by sheet metal forming and welding. The capsule is designed to give the fully dense of end product the desired shape. Compound products can be produced by designing capsules with separate compartments for different powders or enclosing parts of solid material together with the powder.

 

3 Hot Isostatic Pressing (HIP)

The capsules are placed in a HIP press where they are subjected to high pressure and temperature. The HIP parameters pressure, temperature and time are predetermined in order to give the material full density and the required properties.

 

Post Treatment

Depending on the type of material and the application, the products may be heat-treated, machined and subjected to various types of quality control such as ultra-sonic inspection, dye penetrant testing, testing of mechanical properties, etc. The mild steel sheet used in the can remains on the product after HIPing. It is removed by machining or by acid pickling.

           

Product size and weight range

Maximum dimensions after HIPing are diameter 1 500 mm and height 2 850 mm. Maximum weight is approximately 20 metric tonnes.

 

Avoid HISC with HIP

SINTEF states that HIPed items are more resistant to Hydrogen Induced Stress Cracking (HISC).

DNV-RP-F112: DNV recommends HIP as manufacturing method for Duplex Stainless steel subsea equipment exposed to cathodic protection.

  • Alloy
    US
    UNS
    Werkstoff
  • 200
    -
    N02200
    2.4066
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • US
    UNS
    Werkstoff
    AKA
  • ASTM A182 F304
    S30400
    1.4301
    -
  • ASTM A182 F316
    S31600
    1.4401
    -
  • ASTM A182 F321
    S32100
    1.4541
    -
  • -
    -
    1.4418
    S 165M
  • ASTM A182 F6
    S41000
    1.4006
    -
  • ASTM A564 630
    S17400
    1.4542
    17/4 PH
  • ASTM A182 F44
    S31254
    1.4529
    6Mo, SMo
  • ASTM A182 F51
    S31803
    1.4462
    Duplex
  • ASTM A182 F53
    S32750
    1.4410
    Super Duplex
  • ASTM A182 F55
    S32760
    1.4501
    Super Duplex
  • ASTM A182 F61
    S32550
    1.4507
    Super Duplex
  • US
    UNS
    Werkstoff
    AKA
  • ASTM A182 F304
    S30400
    1.4301
    -
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Alloy
    US
    UNS
    Werkstoff
  • 200
    -
    N02200
    2.4066
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • US
    UNS
    Werkstoff
    AKA
  • AISI 4130
    G41300
    1.7218
    25CrMo4
  • AISI 4140
    G41400
    1.7225
    42CrMo4
  • AISI 4340
    G43400
    1.6562
    34CrNiMo4
  • AISI 8620
    G86200
    1.6523
    -
  • AISI 8630
    G86300
    1.6545
    30NiCrMo2
  • A182 F22
    K21590
    1.7380
    -
  • A694 F65
    -
    -
    -
  • A350 LF2
    K03011
    -
    -
  • -
    -
    1.7792
    58CrMo V4
  • US
    UNS
    Werkstoff
    AKA
  • ASTM A182 F304
    S30400
    1.4301
    -
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Alloy
    US
    UNS
    Werkstoff
  • 200
    -
    N02200
    2.4066
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • UNS
    APM
    AKA
  • S30400
    -
    AISI 304
  • S31600
    -
    AISI 316L
  • S31254
    -
    SMo, 6Mo
  • S31803
    2377
    Duplex
  • S32505
    2327
    Super Duplex
  • N06625
    9982
    Inconel 625
  • Alloy
    US
    UNS
    Werkstoff
  • 20
    ASTM B473
    N08020
    2.4660
  • 22
    ASTM B574
    N06022
    2.4602
  • C276
    ASTM B574
    N10276
    2.4819
  • 200
    ASTM B160
    N02200
    2.4066
  • 400
    ASTM B164
    N04400
    2.4360
  • K500
    ASTM B865
    N05500
    2.4375
  • 600
    ASTM B166
    N06600
    2.4816
  • 625
    ASTM B446
    N06625
    2.4856
  • 718
    ASTM B637
    N07718
    2.4668
  • 800 HT
    ASTM B408
    N08811
    1.4959
  • 825
    ASTM B425
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • US
    UNS
    Werkstoff
    AKA
  • -
    -
    1.4418
    S165M
  • ASTM A564 630
    S17400
    1.4542
    17/4PH
  • ASTM A182 F44
    S31254
    1.4529
    6Mo, SMo
  • ASTM A182 F51
    S31803
    1.4462
    Duplex
  • ASTM A182 F53
    S32750
    1.4410
    Super Duplex
  • ASTM A182 F55
    S32760
    1.4501
    Super Duplex
  • US
    UNS
    Werkstoff
    AKA
  • ASTM A182 F304
    S30400
    1.4301
    -
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Alloy
    US
    UNS
    Werkstoff
  • 200
    -
    N02200
    2.4066
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Grades 1-5, 7,9, 11 og 12
  • US
    UNS
    Werkstoff
    AKA
  • ASTM A182 F304
    S30400
    1.4301
    -
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Alloy
    US
    UNS
    Werkstoff
  • 200
    -
    N02200
    2.4066
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Alloy
    US
    UNS
    Werkstoff
  • 20
    ASTM B473
    N08020
    2.4660
  • 22
    ASTM B574
    N06022
    2.4602
  • C276
    ASTM B574
    N10276
    2.4819
  • 200
    ASTM B160
    N02200
    2.4066
  • 400
    ASTM B164
    N04400
    2.4360
  • K500
    ASTM B865
    N05500
    2.4375
  • 600
    ASTM B166
    N06600
    2.4816
  • 625
    ASTM B446
    N06625
    2.4856
  • 718
    ASTM B637
    N07718
    2.4668
  • 800 HT
    ASTM B408
    N08811
    1.4959
  • 825
    ASTM B425
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • US
    UNS
    Werkstoff
    AKA
  • -
    -
    1.4418
    S165M
  • ASTM A564 630
    S17400
    1.4542
    17/4PH
  • ASTM A182 F44
    S31254
    1.4529
    6Mo, SMo
  • ASTM A182 F51
    S31803
    1.4462
    Duplex
  • ASTM A182 F53
    S32750
    1.4410
    Super Duplex
  • ASTM A182 F55
    S32760
    1.4501
    Super Duplex
  • US
    UNS
    Werkstoff
    AKA
  • ASTM A182 F304
    S30400
    1.4301
    -
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Alloy
    US
    UNS
    Werkstoff
  • 200
    -
    N02200
    2.4066
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Grades 1-5, 7,9, 11 og 12
  • US
    UNS
    Werkstoff
    AKA
  • ASTM A182 F304
    S30400
    1.4301
    -
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Alloy
    US
    UNS
    Werkstoff
  • 200
    -
    N02200
    2.4066
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Alloy
    US
    UNS
    Werkstoff
  • 20
    ASTM B473
    N08020
    2.4660
  • 22
    ASTM B574
    N06022
    2.4602
  • C276
    ASTM B574
    N10276
    2.4819
  • 200
    ASTM B160
    N02200
    2.4066
  • 400
    ASTM B164
    N04400
    2.4360
  • K500
    ASTM B865
    N05500
    2.4375
  • 600
    ASTM B166
    N06600
    2.4816
  • 625
    ASTM B446
    N06625
    2.4856
  • 718
    ASTM B637
    N07718
    2.4668
  • 800 HT
    ASTM B408
    N08811
    1.4959
  • 825
    ASTM B425
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • US
    UNS
    Werkstoff
    AKA
  • -
    -
    1.4418
    S165M
  • ASTM A564 630
    S17400
    1.4542
    17/4PH
  • ASTM A182 F44
    S31254
    1.4529
    6Mo, SMo
  • ASTM A182 F51
    S31803
    1.4462
    Duplex
  • ASTM A182 F53
    S32750
    1.4410
    Super Duplex
  • ASTM A182 F55
    S32760
    1.4501
    Super Duplex
  • US
    UNS
    Werkstoff
    AKA
  • ASTM A182 F304
    S30400
    1.4301
    -
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Alloy
    US
    UNS
    Werkstoff
  • 200
    -
    N02200
    2.4066
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Grades 1-5, 7,9, 11 og 12
  • US
    UNS
    Werkstoff
    AKA
  • ASTM A182 F304
    S30400
    1.4301
    -
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Alloy
    US
    UNS
    Werkstoff
  • 200
    -
    N02200
    2.4066
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Alloy
    US
    UNS
    Werkstoff
  • 20
    ASTM B463
    N08020
    2.4660
  • 22
    ASTM B575
    N06022
    2.4602
  • C276
    ASTM B575
    N10276
    2.4819
  • 200
    ASTM B162
    N02200
    2.4066
  • 400
    ASTM B127
    N04400
    2.4360
  • 625
    ASTM B443
    N06625
    2.4856
  • 718
    ASTM B670
    N07718
    2.4668
  • 800 HT
    ASTM B409
    N08811
    1.4959
  • 825
    ASTM B424
    N08825
    2.4858
  • UNS
    Werkstoff
    AKA
  • S31254
    1.4529
    6Mo, SMo
  • S31803
    1.4462
    Duplex
  • S32750
    1.4410
    Super Duplex
  • S32760
    1.4501
    Super Duplex
  • US
    UNS
    Werkstoff
    AKA
  • ASTM A182 F304
    S30400
    1.4301
    -
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Alloy
    US
    UNS
    Werkstoff
  • 200
    -
    N02200
    2.4066
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Grades 1-5, 7,9, 11 og 12
  • US
    UNS
    Werkstoff
    AKA
  • ASTM A182 F304
    S30400
    1.4301
    -
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Alloy
    US
    UNS
    Werkstoff
  • 200
    -
    N02200
    2.4066
  • 400
    ASTM B564
    N04400
    2.4360
  • K500
    ASTM B564
    N05500
    2.4375
  • 625
    ASTM B564
    N06625
    2.4856
  • 716
    -
    N07716
    -
  • 718
    ASTM B637
    N07718
    2.4668
  • 725
    -
    N07725
    -
  • 800
    ASTM B564
    N08800
    1.4876
  • 825
    ASTM B564
    N08825
    2.4858
  • 925
    -
    N09925
    -
  • X750
    ASTM B637
    N07750
    2.4669
  • Heidrun Flare Tower 800HT materials incl. flooring 1994
  • Troll Oil Flare Tower 800HT materials incl. flooring 1995
  • Sleipner West Flare 800HT materials incl. flooring 1996
  • Njord Flare Tower Complete 800HT Flare Tower 1997
  • Oseberg A Complete 800HT Flare Platform 1997
  • Ekofisk 2/4J Flare Heat Shield flooring 1997
  • Ringhorne Flare Complete 800HT Flare Platform 2001
  • Gullfaks A M26 Flare Alloy 625 materials 2001
  • Kristin Complete 800HT Flare Platform 2003
  • Alvheim Complete 800HT Flare Platform 2006
  • Gjøa 800HT materials incl. flooring 2009
  • Skarv Complete 800HT Flare Platform 2009