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B.S. X4CrNiMo16-5-1 Details

X4CrNiMo16-5-1 Application:Stainless steel bars for pressure purposes

Category Type Grade Microstructure Designations
Grades Stainless Steels X4CrNiMo16-5-1 Martensite UK - B.S. , BS EN 10028-7 - Flat products made of steels for pressure purposes - Part 7: Stainless steels
BS EN 10088-1 - Stainless steels - Part 1: List of stainless steels
BS EN 10088-2 - Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
BS EN 10088-3 - Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
BS EN 10088-4 - Stainless steels - Part 4: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes
BS EN 10088-5 - Stainless steels - Part 5: Technical delivery conditions for bars, rods, wire, sections and bright products of corrosion resisting steels for construction purposes
BS EN 10250-4 - Open die steel forgings for general engineering purposes - Part 4: Stainless steels
BS EN 10272 - Stainless steel bars for pressure purposes

Chemical composition(wt.%) of X4CrNiMo16-5-1 grade: BS EN 10028-7

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.06
Si - 0.70
Mn - 1.50
P - 0.04
S - 0.015
Cr 15.00 17.00
Ni 4.00 6.00
Mo 0.80 1.50
N 0.020 -
Stainless steel bars for pressure purposes

Mechanical properties of grade X4CrNiMo16-5-1 BS EN 10028-7

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)
492 (≥) 994 (≥) 41 32 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical properties of grade X4CrNiMo16-5-1 BS EN 10028-7

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
821 (≥) 729 (≥) 21 21 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 432
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
235 647 113

X4CrNiMo16-5-1 - Form of Supply

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

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
X4CrNiMo16-5-1 B.S. UK
Stainless steel bars for pressure purposes
1.4418 B.S. UK
Stainless steel bars for pressure purposes
X4CrNiMo16-5-1 AFNOR France
Aerospace series - Steel FE-PM 3504 (X4CrNiMo16-5-1) - Air melted - Hardened and tempered - Bar - De = 200 mm - 900 MPa = Rm = 1 050 MPa
1.4418 AFNOR France
Aerospace series - Steel FE-PM 3504 (X4CrNiMo16-5-1) - Air melted - Hardened and tempered - Bar - De = 200 mm - 900 MPa = Rm = 1 050 MPa

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