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X7CrNiNb18-11 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X7CrNiNb18-11

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ISO X7CrNiNb18-11

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This page is mainly introduced the X7CrNiNb18-11 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X7CrNiNb18-11,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Austenitic stainless steels

Steel Garde:X7CrNiNb18-11
Type:Stainless Steels
Country:International
Standard:ISO

Standard Number:

ITEM	Standard Number	Descriptions
1	ISO 9329-4	Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Austenitic stainless steels

Metallographic Structure:Austenite
Application:Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Austenitic stainless steels

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.04	0.10
Si		1.00
Mn		2.00
P		0.040
S		0.030
Cr	17.00	19.00
Mo	9.00	13.00
Ni

Mechanical Properties

Tensile strength	578～064	σb/MPa
Yield Strength	027	σ 0.2 ≥/MPa
Elongation	39	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	339～000	-
HRC	30	-

Physical Properties

Thermal expansion	76-24	e-6/K
Thermal conductivity	79-78	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9480-0123	째C
Density	9060-1723	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)
X7CrNiNb18-11 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