B

B Special Alloy

Chemical composition%of the ladle analysis of gradeB

C(％)Si(％)Mn(％)P(％)S(％)Cr(％)Ni(％)Cu(%)
0.21Min 0.31Min 0.800.0500.0500.30Max 0.300.30
B

Mechanical properties of gradeB

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)
593(≥) 537(≥) 22 43 33 Solution and Aging,Annealing,Ausaging,Q+T,etc 432

Physical properties of grade B

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
612(≥) 411(≥) 13 21 33 Solution and Aging,Annealing,Ausaging,Q+T,etc 212
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0)N/mm2		 Creep rupture strength
(10000h)
(Rp1,0)N/mm2
611 129 918

B 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 Q215 B 2 Q255 B 3 1.2714 4 BW1A 5 BW1B 6 BW1C 7 BW1C 8 BW2(1) 9 BW2(1) 10 BW2 11 0Cr19Ni10NbN 12 G3500b 13 0Cr18Ni11Nb 14 0Cr17Ni4Cu4Nb 15 0Cr15Ni25Ti2MoA1VB 16 2Cr12MoVNbN 17 2Cr11NiMoNbVN 18 S47450 19 S47670 20 302B

Equivalent Products

1 1.4980 Round Bar 2 S66286 round bar 3 X19CrMoVNbN11-1 / 1.4913 Disc Forging 4 G-X2CrNiMnMoNNb21-16-5-3 non-magnetic steel 5 Steel of Turbine blade B50A947 A4 6 UMCo-50 7 1.2779 Intermediate Liner / Hollow Bar 8 410Cb Forging 9 SA-437 Grade B4B 10 616 SA-437 B4B Round Bar

Product shapes we supply:

B Steel Stock

Steel grade Dimension Shape Unit Quantity Delivery state Query
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
1.2714 Stock list 2020-06-15 Select 0 Select Enquiry
1.2714 QT Bar Stock List 2020-06-15 Select 0 Select Enquiry
B16 Round Bar Stock Select 0 Select Enquiry