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

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ISO ISO 8

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This page is mainly introduced the ISO 8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ISO 8,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 8
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 16143-2 (2004)	Stainless steels for general purposes -- Part 2: Semi-finished products, bars, rods and sections
4	ISO 16143-3 (2005)	Stainless steels for general purposes -- Part 3: Wire
5	ISO 4955 (2005)	Heat-resistant steels
6	ISO 6931-2	Stainless steels for springs - Part 2: Narrow strip
7	ISO/TS 15510 (2003)	Stainless steels - Chemical composition

Metallographic Structure:Ferrite
Application:Stainless steels - Chemical composition

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
ISO 8A	ISO	International
ISO 8B	ISO	International

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.03
Si		1.00
Mn		1.00
P		0.040
S		0.030
Cr	16.00	18.00
Ni
Mo
N

Mechanical Properties

Tensile strength	704～443	σb/MPa
Yield Strength	878	σ 0.2 ≥/MPa
Elongation	58	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	382～637	-
HRC	30	-

Physical Properties

Thermal expansion	66-82	e-6/K
Thermal conductivity	57-78	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0640-3704	째C
Density	3324-6985	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 8 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