Home»Grades > Special Alloy > MIL S 861
MIL S 861Application:MIL S 861 is available as Bar (Round, Shapes), Billet, Wire, Strip.
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy MIL S 861MILUSA

Chemical composition%of the ladle analysis of gradeMIL S 861

C(%)Si(%)Mn(%)P(%)S(%)Cr(%)Ni(%)Mo(%)V(%)W(%)Cu(%)Other(%)
0.20-0.250.20-0.601.00.040 0.03011.0-13.50.50-1.00.75-1.250.17-0.300.75-1.250.50Fe:Balance;
MIL S 861 is a hardenable stainless steel designed for use at temperatures of up to 1200ºF (649ºC). MIL S 861  has good resistance to scaling and oxidation. Through heat treatment, high mechanical properties can be developed. MIL S 861   is used in applications such as compressors or steam turbines and also in aircraft parts, valves, high temperature bolting etc. 

UNS S42200
AISI 616
AMS 5655 Bars / wire/ forging H&T
ASTM A 565 GRD 616
DOD F 24669/7
MIL S 861
B50A125 (Cap of)
B50A951A1 (Cap of) 
BS 970; 442S19
EN61
Mechanical properties of gradeMIL S 861
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)
488(≥)796(≥)211131Solution and Aging,Annealing,Ausaging,Q+T,etc123
Physical properties of gradeMIL S 861
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
379(≥)568(≥)423243Solution and Aging,Annealing,Ausaging,Q+T,etc142
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0)N/mm2
Creep rupture strength
(10000h)
(Rp1,0)N/mm2
983562791
MIL S 861Range 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
Y1Cr18Ni9SeMILUSA
Improve the machinability, ablation resistance. Suitable for automatic lathe production of rivets, screws
S20100MILUSA
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
0Cr18Ni13Si4MILUSA
Seamless stainless steel tubes for boiler and heat exchanger
1Cr18Ni9Si3MILUSA
Cold rolled steel sheet
1Cr18Ni11SiA1TiMILUSA
Stainless steel bars
00Cr18Ni5Mo3Si2MILUSA
Stainless steel bars
2Cr20Mn9Ni2Si2NMILUSA
Heat-resisting steel bars
1Cr20Ni14Si2MILUSA
Heat-resisting steel sheets and plates
1Cr25Ni20Si2MILUSA
Heat-resisting steel sheets and plates
4Cr9Si2MILUSA
Valve steel bars for internal combustion engines - Technical requirements
4Cr10Si2MoMILUSA
Heat-resisting steel bars
8Cr20Si2NiMILUSA
Heat-resisting steel bars
S20153MILUSA
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
S20161MILUSA
Austenitic Chromium Manganese Nickel Silicon Stainless Steel
S20200MILUSA
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
S20300MILUSA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
S20400MILUSA
S20400
S20501MILUSA
Stainless steel and heat resistant steel
S20910MILUSA
Chemical compositions of SAE wrought stainless steels
XM-31MILUSA
Chemical compositions of SAE wrought stainless steels

Relevant products

MIL S 861 Steel Stock

Steel gradeDimensionShapeUnitQuantityDelivery stateQuery
SkD-11 Round Bar StockΦ30-Φ350Round BarKgs3102Hot-Rolled+Annealed+blackEnquiry
Cr12MoV12-160(T)*310-610(W)*LPlate or SheetTons12.38Hot-Rolled+Annealed+blackEnquiry
1.260112-160(T)*310-610(W)*LPlate or SheetTons11.22Hot-Rolled+Annealed+blackEnquiry
Incoloy800 round barΦ115*1400Round BarKgs169Hot-Rolled+Annealed+blackEnquiry
1.4882 strip/sheet/plate stock3.5x200x1000-2000mmCoil or StripKgs200Cold-Rolled+AnnealedEnquiry
T45Cr5Si3 Round BarDia.40mmRound BarKgs500Hot-Rolled+Annealed+blackEnquiry
SA-437 Grade B4B/SUS 616 /422 Forged BarDia.160xLRound BarKgs2120Forged+QTEnquiry
Stainless Steel 422 / Alloy 422 AMS 5655 UNS S42200/616/B4B Round Bar StockSelect0SelectEnquiry
1.2714 Hot-Work Mould Steel Flat Bar Stock(2019-09-03)Select0SelectEnquiry
15-5PH Forgrd Flat BarSelect0SelectEnquiry
1.2714 Stock list 2020-06-15Select0SelectEnquiry
1.2714 QT Bar Stock List 2020-06-15Select0SelectEnquiry

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