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4340 HApplication:Australia Structural steel
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy 4340 HASAustralia

Chemical composition%of the ladle analysis of grade4340 H

C(%)Si(%)Mn(%)P(%)S(%)Cr(%)Ni(%)Mo(%)
0.37-0.440.10-0.350.55-0.900.040.040.65-0.951.55-2.000.20-0.30
4340 H
Mechanical properties of grade4340 H
Proof strength
Rp0.2(MPa)
Tensile strength
Rm(MPa)
Impact energy
KV(J)
Elongation at fracture
A(%)
Reduction in cross section on fracture
Z(%)
As-Heat-Treated ConditionBrinell hardness(HBW)
917(≥)268(≥)231313Solution and Aging,Annealing,Ausaging,Q+T,etc113
Physical properties of grade4340 H
PropertyDensity
kg/dm3
Temperature T
°C/F
Specific heat
J/kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
327(≥)689(≥)342433Solution and Aging,Annealing,Ausaging,Q+T,etc121
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0)N/mm2
Creep rupture strength
(10000h)
(Rp1,0)N/mm2
291168347
4340 HRange of products
Product typeProductsDimensionProcessesDeliver Status
Plates/SheetsPlates/Sheets0.08-200mm(T)*W*LForging,hot rolling and cold rollingAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Steel BarRound Bar,Flat Bar,Square BarΦ8-1200mm*LForging,hot rolling and cold rolling,CastBlack,Rough Turning,Shot Blasting,
Coil/StripSteel Coil/Steel Strip0.03-16.0x1200mmCold-Rolled&Hot-RolledAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Pipes/TubesSeamless Pipes/Tubes,Welded Pipes/TubesOD:6-219mm x WT:0.5-20.0mmHot extrusion,Cold Drawn,WeldedAnnealed,Solution and Aging,Q+T,ACID-WASHED
Cross Reference Table(Equivalent Grade)
GradeStandardCountryApplication
A 240 S43400ASAustralia
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 554 S43400ASAustralia
Welded Stainless Steel Mechanical Tubing
S43400ASAustralia
Ferritic Chromium Molybdenum Stainless Steel
SA-240 S43400ASAustralia
Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
1Cr18Ni9Si3ASAustralia
Cold rolled steel sheet
0Cr17Ni7AlASAustralia
Heat-resisting steel sheets and plates
0Cr17Ni7AlASAustralia
Heat-resisting steel sheets and plates
GH1015ASAustralia
Solid solution strengthening type iron base alloy
GH1016ASAustralia
Classification and designation for superalloys and high temperature intermetallic materials
GH1035ASAustralia
Classification and designation for superalloys and high temperature intermetallic materials
GH1040ASAustralia
Classification and designation for superalloys and high temperature intermetallic materials
GH1131ASAustralia
Classification and designation for superalloys and high temperature intermetallic materials
GH1140ASAustralia
Classification and designation for superalloys and high temperature intermetallic materials
GH2018ASAustralia
Classification and designation for superalloys and high temperature intermetallic materials
GH2036ASAustralia
Classification and designation for superalloys and high temperature intermetallic materials
GH2038ASAustralia
Classification and designation for superalloys and high temperature intermetallic materials
GH2130ASAustralia
Classification and designation for superalloys and high temperature intermetallic materials
GH2132ASAustralia
Classification and designation for superalloys and high temperature intermetallic materials
GH2135ASAustralia
Classification and designation for superalloys and high temperature intermetallic materials
GH2136ASAustralia
Classification and designation for superalloys and high temperature intermetallic materials

Relevant products

4340 H Steel Stock

Steel gradeDimensionShapeUnitQuantityDelivery stateQuery
17-4PH Coil Stock0.08*200mmCoil or StripKgs1623Cold-Rolled+AnnealedEnquiry
17-4PH Round BarΦ5-300mm*LRound BarKgs46958Hot-Rolled+Annealed+blackEnquiry
17-4PH plate8-45*1200*3000mmPlate or SheetTons4.9Hot-Rolled+Annealed+blackEnquiry
IncoloyA-286 / GH 2132 StockΦ8-65mm*LRound BarKgs489Hot-Rolled+Annealed+blackEnquiry
Incoloy800 round barΦ115*1400Round BarKgs169Hot-Rolled+Annealed+blackEnquiry
17-7PH / 631 Coil & Strip, Sheet Stock0.3-3.0*10-180mmCoil or StripKgs1236.22Cold-Rolled+AnnealedEnquiry
1.4882 strip/sheet/plate stock3.5x200x1000-2000mmCoil or StripKgs200Cold-Rolled+AnnealedEnquiry
H13 Tool Steel50x710xLFlat or Square barPCS4Forged+Annealed+blackEnquiry
1.2344(H13/X40CrMoV5-1/Z40CDV5) Stock ListDia.182mm - Dia.510mmRound BarTons120Forged+Annealed+blackEnquiry
1.2714 Hot-Work Mould Steel Flat Bar Stock(2019-09-03)Select0SelectEnquiry
15-5PH Forgrd Flat BarSelect0SelectEnquiry
PH13-8Mo ForgingsSelect0SelectEnquiry
1.2714 Stock list 2020-06-15Select0SelectEnquiry
1.2714 QT Bar Stock List 2020-06-15Select0SelectEnquiry
0Cr13Ni8Mo2Al, PH13-8Mo, 13-8Mo, XM-13 round bar stockSelect0SelectEnquiry

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