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O2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of O2

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ASTM O2

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This page is mainly introduced the O2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of O2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
O2

Steel Garde:O2
Type:Special Alloy
Country:USA
Standard:ASTM
Application:Alloy tool steel

Relevant products:

1Cr12Ni3Mo2VN/J2 Hot Forged Bar

0Cr13Ni8Mo2Al, PH...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
5Cr4W5Mo2V		China
T31502	UNS	USA
BO2		UK
BO2		UK
Ni-Mo28	AFNOR	France
Ni-Mo28	AFNOR	France
06Cr17Ni12Mo2	GBT	China
022Cr17Ni12Mo2	GBT	China
06Cr17Ni12Mo2Ti	GBT	China
06Cr17Ni12Mo2N	GBT	China
022Cr17Ni12Mo2N	GBT	China
06Cr18Ni12Mo2Cu2	GBT	China
022Cr18Ni14Mo2Cu2	GBT	China
022Cr25Ni22Mo2N	GBT	China
06Cr17Ni12Mo2	GBT	China
07Cr17Ni12Mo2	GBT	China
06Cr17Ni12Mo2Nb	GBT	China
0Cr17Ni12Mo2	GBT	China
00Cr17Ni14Mo2	GBT	China
20NiCrMo2-2	UNE	Spain
S07Cr19Ni11Mo2Nb	CSN	Czech Republic
EN 20N1CrMo2-2	EN	Euronorm
EN 20NiCrMo2KD	EN	Euronorm
EN 30NiCrMo2KD	EN	Euronorm
EN 40NiCrMo2KD	EN	Euronorm
EN 9MnMo25KE	EN	Euronorm
EN 20N5CrMo2F	EN	Euronorm
EN GX2NiCrMo28-20-2	EN	Euronorm
EN NiCo20Cr20MoTi	EN	Euronorm
EN NiCr25Co20TiMo	EN	Euronorm
EN GX2NiCrMo28-20-2	EN	Euronorm
0Cr26Ni5Mo2	GBT	China
00Cr30Mo2	GBT	China
00Cr18Mo2	GBT	China
0Cr15Ni7Mo2Al	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	345～692	σb/MPa
Yield Strength	774	σ 0.2 ≥/MPa
Elongation	77	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	715～944	-
HRC	30	-

Physical Properties

Thermal expansion	39-17	e-6/K
Thermal conductivity	06-54	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5444-9513	째C
Density	6405-9206	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)
O2 Special Alloy	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