STAS/SR B2

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B2 Profile
B2 Chemical composition
B2 Mechanical Properties
B2 Physical Properties
B2 Heat treatment
B2 Size Availability
B2 Relevant products

Profile

This page is mainly introduced the B2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of B2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
B2

Steel Garde:B2
Type:Special Alloy
Country:Romania
Standard:STAS/SR
Application:Structural steel

Relevant products:

1.4980 Round Bar

G-X2CrNiMnMoNNb21-...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
4X5B2фC	ГОСТ	Russia
4X5B2фC	ГОСТ	Russia
B2	SS	Sweden
B2	SS	Sweden
B23	SS	Sweden
B23	SS	Sweden
X1CrNiMoNb28-4-2	DIN	Germany
X5NiCrMoCuNb22-18	FED	Germany
X12CrNiMoNb20-15	DIN	Germany
X6NiCrTiMoVB25-15-2/X5NiCrTi26-15	DIN	Germany
35B2	AFNOR	France
X6NiCrTiMoB25-15-2	AFNOR	France
Z12CKNDWNb21-20-20	AFNOR	France
Z12CKNDWNb21-20-20	AFNOR	France
Z50CMNNb21-09-02Az	AFNOR	France
Z53CMNNb21-09-02Az	AFNOR	France
Z60CMDVNb21-10Az	AFNOR	France
ASTM B2N,B2Q	AISI	USA
ISO X6NiCrTiMoVB25 15 2	ISO	ISO
10SPb20	UNE	Spain
35SPb20	UNE	Spain
38SMnPb28	UNE	Spain
44SMnPb28	UNE	Spain
46SPb20	UNE	Spain
FB232	UNE	Spain
SNB21-1-5	CNS	China
SNB22-1-5	CNS	China
SNB23-1-5	CNS	China
SNB24-1-5	CNS	China
EN 10SPb20	EN	Euronorm
EN 35SPb20	EN	Euronorm
EN 38SMnPb28	EN	Euronorm
EN 44SMnPb28	EN	Euronorm
EN 46SPb20	EN	Euronorm
EN B20Mn5	EN	Euronorm
EN X6CrNiNb2010KE	EN	Euronorm
EN X6NiCrTiMoVB25-15-2	EN	Euronorm
EN 35B2	EN	Euronorm
EN X6CrNiMoB27-12-2	EN	Euronorm
EN X6NiCrTiMoVB25-15-2	EN	Euronorm

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	353～145	σb/MPa
Yield Strength	881	σ 0.2 ≥/MPa
Elongation	21	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	542～306	-
HRC	30	-

Physical Properties

Thermal expansion	10-97	e-6/K
Thermal conductivity	80-66	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6176-4650	째C
Density	5206-8592	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)
B2 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