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

Chemical composition % of the ladle analysis of grade 2a

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Al(%)
0.16-0.23 0.15-0.35 1.20-1.60 0.035 0.035 0.30 Max 0.30 0.025 0.30
2a
Mechanical properties of grade 2a
Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
247 (≥) 547 (≥) 43 43 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 432
Physical properties of grade 2a
Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
362 (≥) 499 (≥) 34 23 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 332
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
873 882 455
2a Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
0Cr15Ni7Mo2Al STAS/SR Romania
Stainless steel bars
SUS 304N2 A STAS/SR Romania
Stainless steel for building structure
Z2CND25-22Az STAS/SR Romania
Iron and steel. Austenitic and austenic-ferritic stainless steels plates for boilers and pressure vessels
Z3CND17-12Az STAS/SR Romania
Steel tubes - Welded austenitic stainless and austenitic ferritic steel rolled tubes for pressure service - Dimensions, technical conditions for delivery
Z20CN21-12Az STAS/SR Romania
Valve steels and alloys for internal combustion engines
Z50CMNNb21-09-02Az STAS/SR Romania
Valve steels and alloys for internal combustion engines
Z53CMNNb21-09-02Az STAS/SR Romania
Valve steels and alloys for internal combustion engines
08X20H12AБΦ STAS/SR Romania
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition
Z12CNDV12-03 STAS/SR Romania
Iron and steel. Stainless steel for high temperature application
Z12CNDV12-03 STAS/SR Romania
Iron and steel. Stainless steel for high temperature application
Z12CNDV12 Air 9160/C STAS/SR Romania
wrought steels used in aeronautical constructions
AMS 6305F 17-22A STAS/SR Romania
Steel, Heat-Resistant, Bars, Forgings, and Tubing 0.95Cr - 0.55Mo - 0.30V (0.40 - 0.50C) Vacuum Arc Remelted
AMS 6305E 17-22A STAS/SR Romania
Steel, Heat-Resistant, Bars, Forgings, and Tubing 0.95Cr - 0.55Mo - 0.30V (0.40 - 0.50C) Vacuum Arc Remelted

Relevant products

2a Equivalent Grade Stock

Steel grade Dimension Shape Unit Quantity Delivery state Query
0Cr13Ni8Mo2Al, PH13-8Mo, 13-8Mo, XM-13 round bar stock Select 0 Select Enquiry

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