MIL S 861

MIL S 861 Special Alloy

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 Condition Brinell hardness(HBW)
655(≥) 178(≥) 42 23 33 Solution and Aging,Annealing,Ausaging,Q+T,etc 313

Physical properties of grade MIL S 861

Property Density
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
686(≥) 855(≥) 13 42 12 Solution and Aging,Annealing,Ausaging,Q+T,etc 334
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0)N/mm2		 Creep rupture strength
(10000h)
(Rp1,0)N/mm2
986 337 833

MIL S 861 Range of products

Product type Products Dimension Processes Deliver Status
Plates/Sheets Plates/Sheets 0.08-200mm(T)*W*L Forging,hot rolling and cold rolling Annealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Steel Bar Round Bar,Flat Bar,Square Bar Φ8-1200mm*L Forging,hot rolling and cold rolling,Cast Black,Rough Turning,Shot Blasting,
Coil/Strip Steel Coil/Steel Strip 0.03-16.0x1200mm Cold-Rolled&Hot-Rolled Annealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Pipes/Tubes Seamless Pipes/Tubes,Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion,Cold Drawn,Welded Annealed,Solution and Aging,Q+T,ACID-WASHED

Equivalent Grade

1 MIL S 861 2 ASTM 1030 3 UNS G10300 4 ASTM 1005 5 UNS G10050 6 ASTM 1006 7 UNS G10060 8 ASTM 1008 9 UNS G10080 10 ASTM 1010 11 Y1Cr18Ni9Se 12 S20100 13 0Cr18Ni13Si4 14 1Cr18Ni9Si3 15 1Cr18Ni11SiA1Ti 16 00Cr18Ni5Mo3Si2 17 2Cr20Mn9Ni2Si2N 18 1Cr20Ni14Si2 19 1Cr25Ni20Si2 20 4Cr9Si2

Equivalent Products

1 SKD-11 Cold working die steel 2 X165CrMoV12 Cold working die steel 3 A387 F5 / Grade 5 Coil / Sheet 4 DT413 / 4Cr5MoSiV1MOD 5 X65Cr13 profile steel 6 S66286 round bar 7 waspaloy round bar 8 HastelloyC-22 round bar 9 HastelloyC-276 round bar 10 Incoloy800 round bar

Product shapes we supply:

MIL S 861 Steel Stock

Steel grade Dimension Shape Unit Quantity Delivery state Query
SkD-11 Round Bar Stock Φ30-Φ350 Round Bar Kgs 3102 Hot-Rolled+Annealed+black Enquiry
Cr12MoV 12-160(T)*310-610(W)*L Plate or Sheet Tons 12.38 Hot-Rolled+Annealed+black Enquiry
1.2601 12-160(T)*310-610(W)*L Plate or Sheet Tons 11.22 Hot-Rolled+Annealed+black Enquiry
Incoloy800 round bar Φ115*1400 Round Bar Kgs 169 Hot-Rolled+Annealed+black Enquiry
1.4882 strip/sheet/plate stock 3.5x200x1000-2000mm Coil or Strip Kgs 200 Cold-Rolled+Annealed Enquiry
T45Cr5Si3 Round Bar Dia.40mm Round Bar Kgs 500 Hot-Rolled+Annealed+black Enquiry
SA-437 Grade B4B/SUS 616 /422 Forged Bar Dia.160xL Round Bar Kgs 2120 Forged+QT Enquiry
Stainless Steel 422 / Alloy 422 AMS 5655 UNS S42200/616/B4B Round Bar Stock Select 0 Select Enquiry
1.2714 Hot-Work Mould Steel Flat Bar Stock(2019-09-03) Select 0 Select Enquiry
15-5PH Forgrd Flat Bar Select 0 Select Enquiry
1.2714 Stock list 2020-06-15 Select 0 Select Enquiry
1.2714 QT Bar Stock List 2020-06-15 Select 0 Select Enquiry