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X7CrNiMoB17-12 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X7CrNiMoB17-12

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ISO X7CrNiMoB17-12

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This page is mainly introduced the X7CrNiMoB17-12 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X7CrNiMoB17-12,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Longitudinally welded austenitic stainless steel tubes

Steel Garde:X7CrNiMoB17-12
Type:Stainless Steels
Country:International
Standard:ISO

Standard Number:

ITEM	Standard Number	Descriptions
1	ISO 9327-5	Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 5: Stainless steels
2	ISO 9328-5	Steel plates and strips for pressure purposes - Technical delivery conditions - Part 5: Weldable fine grain steels, thermomechanically rolled
3	ISO 9329-4	Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Austenitic stainless steels
4	ISO 9330-6	Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Longitudinally welded austenitic stainless steel tubes

Metallographic Structure:Austenite
Application:Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Longitudinally welded austenitic stainless steel tubes

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	16.50	18.50
Mo	10.50	13.50
Ni	2.00	2.50
B	0.001	0.005

Mechanical Properties

Tensile strength	129～114	σb/MPa
Yield Strength	629	σ 0.2 ≥/MPa
Elongation	11	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	812～781	-
HRC	30	-

Physical Properties

Thermal expansion	61-38	e-6/K
Thermal conductivity	08-27	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1673-6942	째C
Density	9992-5438	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)
X7CrNiMoB17-12 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