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T4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T4

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ASTM T4

Catalog

T4 Profile
T4 Chemical composition
T4 Mechanical Properties
T4 Physical Properties
T4 Heat treatment
T4 Size Availability
T4 Relevant products

Profile

This page is mainly introduced the T4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
T4

Steel Garde:T4
Type:Special Alloy
Country:USA
Standard:ASTM
Application:Tungsten series High-Speed Tool Steel

Relevant products:

DT413 / 4Cr5MoSiV1MOD

1.2714(L6, 55NiCr...

T45Cr5Si3(IS 1570...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
T41902	UNS	USA
T41904	UNS	USA
T41905	UNS	USA
T41906	UNS	USA
T41907	UNS	USA
Stellite T40		USA
1.2714	DIN	Germany
SKT4	JIS	Japan
ST40E	JIS	Japan
ST40E	JIS	Japan
BT4		UK
BT4		UK
BT42		UK
CT45	SS	Sweden
CT45	SS	Sweden
CT45	SS	Sweden
CT45	SS	Sweden
CT45	SS	Sweden
CT45	SS	Sweden
CT45	SS	Sweden
CT45	SS	Sweden
CT45	SS	Sweden
CT45	SS	Sweden
OLT45R	STAS/SR	Romania
OI.T45	STAS/SR	Romania
OI.T45K	STAS/SR	Romania
T40NiCr130	STAS/SR	Romania
T40SiCrI30	STAS/SR	Romania
St42F	ONORM	Austria
St41KW	ONORM	Austria
St41KK	ONORM	Austria
St41KKW	ONORM	Austria
St400S	ONORM	Austria
SPHT4	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	261～399	σb/MPa
Yield Strength	881	σ 0.2 ≥/MPa
Elongation	65	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	094～848	-
HRC	30	-

Physical Properties

Thermal expansion	88-25	e-6/K
Thermal conductivity	53-28	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5823-6132	째C
Density	0096-6236	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
T4 Special Alloy	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk