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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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AFNOR 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.
Aerospace series - Steel FE-PM 3504 (X4CrNiMo16-5-1) - Air melted - Hardened and tempered - Bar - De = 200 mm - 900 MPa = Rm = 1 050 MPa

Steel Garde:1.4418
Type:Stainless Steels
Country:France
Standard:AFNOR

Standard Number:

ITEM	Standard Number	Descriptions
1	NF EN 10028-7	Flat products made of steels for pressure purposes - Part 7: Stainless steels
2	NF EN 10088-1	Stainless steels - Part 1: List of stainless steels
3	NF EN 10088-2	Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
4	NF EN 10088-3	Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
5	NF EN 10088-4	Stainless steels - Part 4: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes
6	NF EN 10088-5	Stainless steels - Part 5: Technical delivery conditions for bars, rods, wire, sections and bright products of corrosion resisting steels for construction purposes
7	NF EN 10250-4	Open die steel forgings for general engineering purposes - Part 4: Stainless steels
8	NF EN 10272	Stainless steel bars for pressure purposes
9	NF EN 4629	Aerospace series - Steel FE-PM 3504 (X4CrNiMo16-5-1) - Air melted - Hardened and tempered - Forging stock - De = 300 mm
10	NF EN 4631	Aerospace series - Steel FE-PM 3504 (X4CrNiMo16-5-1) - Air melted - Hardened and tempered - Bar - De = 200 mm - 900 MPa = Rm = 1 050 MPa

Metallographic Structure:Precipitation-Hardening
Application:Aerospace series - Steel FE-PM 3504 (X4CrNiMo16-5-1) - Air melted - Hardened and tempered - Bar - De = 200 mm - 900 MPa = Rm = 1 050 MPa

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
X4CrNiMo16-5-1	B.S.	UK
1.4418	B.S.	UK
X4CrNiMo16-5-1	AFNOR	France

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.06
Si		0.70
Mn		1.50
P		0.040
S		0.015
Cr	15.00	17.00
Mo	0.80	1.50
Ni	4.00	6.00
N	0.020

Mechanical Properties

Tensile strength	460～736	σb/MPa
Yield Strength	876	σ 0.2 ≥/MPa
Elongation	41	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	366～473	-
HRC	30	-

Physical Properties

Thermal expansion	13-37	e-6/K
Thermal conductivity	55-22	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1087-1354	째C
Density	0884-7262	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