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P91

 We are professional P91,T91,ASME SA ASTM A 335 P91 gr. P91 ASTM A336 P91 SA336 P91 Forged forging Steel Round Bars Rods Square rectangular rectangle Flat Hex Bars,P91,T91,ASME SA ASTM A 335 P91 gr. P91 ASTM A336 P91 SA336 P91 Forged Forging Steel Hollow Bars Forged Forging Sleeves Bushes Bushing Pipes Piping tubes tubings barrels Casing Cases Shells cylinders hubs housings,P91,T91,ASME SA ASTM A 335 P91 gr. P91 ASTM A336 P91 SA336 P91 Forged Forging Steel Rings Seamless Rolled Steel Rings,P91,T91,ASME SA ASTM A 335 P91 gr. P91 ASTM A336 P91 SA336 P91 Forged Forging Steel Flanges Blocks Discs Disks Plates,P91,T91,ASME SA ASTM A 335 P91 gr. P91 ASTM A336 P91 SA336 P91 forged forging steel valve components,Valve Seats,valve stems,valve body bodies,valve bonnets,valve seat rings,P91,T91,ASME SA ASTM A 335 P91 gr. P91 ASTM A336 P91 SA336 P91 forgd forging steel Forged Forging Steel Eccentric Equal Lateral Tees T-piece Y-Pieces Fitting Wye Pieces Piggable Wyes and other P91,T91,ASME SA ASTM A 335 P91 gr. P91 ASTM A336 P91 SA336 P91 forged forging forge Steel parts forged forging pieces forged forging steel components material products from china

 

Chemical Composition

  C Si Mn P S AL Cr Cu Mo N Nb Ni V
P91 Min % 0,08   0,30       8,0   0,85 0,030 0,060   0,18
Max % 0,12 0,50 0,60 0,020 0,005 0,040 9,50 0,30 1,05 0,070 0,100 0,30 0,25
(Key to steel 2010)

Physical properties

Property Value
Density: kg/dm3 7,76
Hardness: (HB) ---
magnetizable yes
E-Modul (Mpa) 218000
Temperature T
°C/F
(°C/F)
Specific heat
J / kgK
(Btu / lb °F)
Thermal conductivity
W/mK
(Btu·in / ft2·h·°F)
Electric resistance
µΩ · cm
(Ω circ mill / ft)
Modulus of elasticity 
kN/mm2
(103 ksi)
Expansion rate from 70°F bis T
10-6 / K
(10-6 / °F)
20 / 68 460 (--) 26 (--)   218 (--)  
200 / 392       207 (--) 11,3 (--)
400 / 752       190 (--) 12,0 (--)
500 / 932   30 (--)     12,3 (--)
600 / 1112         12,6 (--)
650 / 1202       162 (--) 12,7 (--)
Temp. Creep strain limit Creep strain limit Creep rupture strength Creep rupture strength Creep rupture strength
  Rp0,2   10 000h 100 000h  
°C N/mm2 / ksi   N/mm2 /ksi N/mm2 /ksi  
20 /68 450 / 65        
100 /212 410 / 59,4        
300 /572 360 / 52,2        
500 / 932 300 / 43,5   289 / 41,9 258 / 37,4  
550 /1022 270 / 39,1   199 / 28,8 166 / 24,0  
600 /1112 215 / 31,1   122 / 17,6 94 / 13,6  
650 /1202     70 / 10,1 49 / 7,1  
ksi value calculated
Temperature 0,2% Yield strength 
in high temperatures
°C / °F Rp0,2
  Mpa / ksi
100 /212 410 / 59,4
200 /392 380 / 55,1
300 / 572 360 / 52,2
400 / 752 340 / 49,3
500 /932 300 / 43,5
600 /1112 215 / 31,1

Mechanical properties (20°C / 68°F)

0,2% Yield strength Rp0,2 (N/mm2) >=450 normalised and tempered
Yield strength Mpa/ksi 415 /60 ASTM A 335 -P91
Tensile strength Rm(N/mm2) 620-850 normalised and tempered
Elongation-A5 (%)min.längs >=20 normalised and tempered
impact strength (J) (transverse) 40 normalised and tempered
Tensile strength Rm N/mm2 7ksi 585 / 85 ASTM A 335 -P91

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