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1.4418 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.4418

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AMS 1.4418

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This page is mainly introduced the 1.4418 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.4418,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for flat products made of steels for pressure purposes - Part 7: Stainless steels

Steel Garde:1.4418
Type:Stainless Steels
Country:USA
Standard:AMS
Standard Number:

ITEM Standard Number Descriptions

1 SA/EN 10028-7 Specification for flat products made of steels for pressure purposes - Part 7: Stainless steels
Metallographic Structure:Precipitation-Hardening
Application:Specification for flat products made of steels for pressure purposes - Part 7: Stainless steels

ITEM	Standard Number	Descriptions
1	SA/EN 10028-7	Specification for flat products made of steels for pressure purposes - Part 7: Stainless steels

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 565 S41800	SAE	USA
S41800	AISI	USA
A 565 S41800	SAE	USA
S41800	AISI	USA
A 565 S41800	SAE	USA
S41800	AISI	USA
A 534 18CrNiMo7-6	SAE	USA
A 534 18NiCrMo14-6	SAE	USA
A 541 Class 8	SAE	USA
A 541 Class 8A	SAE	USA
A 854 Grade 180	SAE	USA
A 920 Grade 11V41 Class 80	SAE	USA
A 920 Grade 15V41 Class 80	SAE	USA
B418 Type 1	SAE	USA
B418 Type 2	SAE	USA
C14180	AISI	USA
C14181	AISI	USA
K14185	AISI	USA
N 62418	ASME	USA
S41880	AISI	USA
SA-541 Class 8	AMS	USA
SA-541 Class 8A	AMS	USA
W21418	AISI	USA
W50418	AISI	USA
X4CrNiMo16-5-1	B.S.	UK
1.4418	B.S.	UK
X4CrNiMo16-5-1	AFNOR	France
1.4418	AFNOR	France

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）	Similar	Remarks
C		0.20
Si		0.50
Mn		1.00
P
S
Ni
Cr		12.50
Al
Cu
Ti
Fe		remaining
N
Mo
W		3.00

Mechanical Properties

Tensile strength	127～147	σb/MPa
Yield Strength	826	σ 0.2 ≥/MPa
Elongation	12	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	644～641	-
HRC	30	-

Physical Properties

Thermal expansion	32-45	e-6/K
Thermal conductivity	36-31	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9146-5995	째C
Density	7725-4977	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)
1.4418 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