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2a chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 2a

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STAS/SR 2a

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This page is mainly introduced the 2a chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 2a,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
2a

Steel Garde:2a
Type:Special Alloy
Country:Romania
Standard:STAS/SR
Application:Structural steel

Relevant products:

Z12CNDV12-03/KT531...

0Cr13Ni8Mo2Al, PH...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
7Mn15Cr2A13V2WMo		China
W6Mo5Cr4V2Al		China
T12A	JIS	Japan
T12A	JIS	Japan
BD2A		UK
BD2A		UK
BT1		UK
BT1		UK
у12A-1	ГОСТ	Russia
у12A-1	ГОСТ	Russia
у12A-2	ГОСТ	Russia
у12A-2	ГОСТ	Russia
у12A-3	ГОСТ	Russia
у12A-3	ГОСТ	Russia
SUS304N2A	JIS	Japan
Z2CND25-22Az	AFNOR	France
Z3CND17-12Az	AFNOR	France
Z2CND25-22Az	AFNOR	France
Z20CN21-12Az	AFNOR	France
Z50CMNNb21-09-02Az	AFNOR	France
Z53CMNNb21-09-02Az	AFNOR	France
ASTM C12A	AISI	USA
ASTM 2A,2Q	AISI	USA
20TiMnCr12AT	STAS/SR	Romania
21MoMnCr12AT	STAS/SR	Romania
28TiMnCr12AT	STAS/SR	Romania
60CrMnSi12A	STAS/SR	Romania
V-422A	ABNT	Brazil
30CrMnSiNi2A	GBT	China
SWRCH12A	CNS	China
SWRCH22A	CNS	China
STKM12A	CNS	China
EN NiCr15Fe7Ti2Al	EN	Euronorm
0Cr15Ni7Mo2Al	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	657～258	σb/MPa
Yield Strength	217	σ 0.2 ≥/MPa
Elongation	98	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	717～820	-
HRC	30	-

Physical Properties

Thermal expansion	74-64	e-6/K
Thermal conductivity	64-04	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0472-7260	째C
Density	0296-8967	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)
2a 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