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ISO 8B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ISO 8B

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ISO ISO 8B

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This page is mainly introduced the ISO 8B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ISO 8B,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steels - Chemical composition

Steel Garde:ISO 8B
Type:Stainless Steels
Country:International
Standard:ISO

Standard Number:

ITEM	Standard Number	Descriptions
1	ISO 15510 (2010)	Stainless steels -- Chemical composition
2	ISO 16143-1 (2004)	Stainless steels for general purposes -- Part 1: Flat products
3	ISO 4955 (2005)	Heat-resistant steels
4	ISO 9328-7 (2011)	Steel flat products for pressure purposes - Technical delivery conditions - Part 7: Stainless steels
5	ISO/TS 15510 (2003)	Stainless steels - Chemical composition

Metallographic Structure:Ferrite
Application:Stainless steels - Chemical composition

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.05
Si		1.00
Mn		1.00
P		0.040
S		0.030
Cr	16.00	19.00
Ni
Mo	0.90	1.40
N
Ti	4×(C+N)％+0.20	0.75

Mechanical Properties

Tensile strength	778～558	σb/MPa
Yield Strength	134	σ 0.2 ≥/MPa
Elongation	31	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	781～709	-
HRC	30	-

Physical Properties

Thermal expansion	06-44	e-6/K
Thermal conductivity	73-24	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1656-7367	째C
Density	5012-1403	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)
ISO 8B 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