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VAT 4955 Application:Brazil Stainless steel

Category	Type	Steel grade	Standard	Country
Grades	Special Alloy	VAT 4955	ABNT	Brazil

Chemical composition % of the ladle analysis of grade VAT 4955

C(％)	S(％)	V(%)
0.06	19.5	0.3

VAT 4955

Mechanical properties of grade VAT 4955

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)
674 (≥)	259 (≥)	31	42	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	434

Physical properties of grade VAT 4955

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
728 (≥)	725 (≥)	21	42	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	321
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
787	834	394

VAT 4955 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

Cross Reference Table(Equivalent Grade)

Grade	Standard	Country	Application
NiFe25Cr20NbTi	ABNT	Brazil	Valve steels and alloys for internal combustion engines
2.4955	ABNT	Brazil	Valve steels and alloys for internal combustion engines

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