Get Appoinment

Location » Home » Grades > Special Alloy > T20824

UNS T20824 Enquiry | Print this page

T20824 Application:Alloy tool steel

Category	Type	Steel grade	Standard	Country
Grades	Special Alloy	T20824	UNS	USA

Chemical composition % of the ladle analysis of grade T20824

C(％)	Si(％)	Mn(％)	P(％)	S(％)	Cr(％)	V(%)	W(%)
0.42～0.53	0.15～0.40	0.15～0.40	≤0.030	≤0.030	2.50～3.50	0.40～0.60	14.0～16.0

T20824

Mechanical properties of grade T20824

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)
872 (≥)	949 (≥)	43	34	42	Solution and Aging, Annealing, Ausaging, Q+T,etc	321

Physical properties of grade T20824

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
273 (≥)	244 (≥)	43	23	31	Solution and Aging, Annealing, Ausaging, Q+T,etc	431
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
838	462	846

T20824 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
T20824	UNS	USA	Hot-Work Tool Steel
T20824	UNS	USA	Hot-Work Tool Steel

Enquiry