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S41400 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S41400

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AISI S41400

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This page is mainly introduced the S41400 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S41400,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Martensitic Chromium Stainless Steel

Steel Garde:S41400
Type:Stainless Steels
Country:USA
Standard:AISI
Metallographic Structure:Martensite
Application:Martensitic Chromium Stainless Steel

Relevant products:

4145H Hollow Bar

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 276 S41400	SAE	USA
A 314 S41400	SAE	USA
A 473 S41400	SAE	USA
A 580 S41400	SAE	USA
A 276 S41425	SAE	USA
A 314 S41425	SAE	USA
A 473 S41425	SAE	USA
A 479 S41425	SAE	USA
A 565 S41425	SAE	USA
A 959 S41425	SAE	USA
S41425	AISI	USA
SA-479 S41425	AMS	USA
NV7(4140)	UNS	USA
H41400	AISI	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.15
Mn		1.00
Si		1.00
P		0.04
S		0.03
Cr	11.50	13.50
Ni	1.25	2.50
Mo

Mechanical Properties

Tensile strength	686～424	σb/MPa
Yield Strength	617	σ 0.2 ≥/MPa
Elongation	52	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	856～417	-
HRC	30	-

Physical Properties

Thermal expansion	53-77	e-6/K
Thermal conductivity	69-80	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4000-6581	째C
Density	3332-8870	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)
S41400 Stainless Steels	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