E - Special Alloy - Special Steel

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

Chemical composition % of the ladle analysis of grade E

C(％)	Si(％)	Mn(％)	P(％)	S(％)	Cr(％)	Ni(％)	Al(%)
0.18	0.10-0.35	0.70-1.50	0.050	0.050	0.30	≥0.30	0.020 0.30

Mechanical properties of grade E
Proof strength R_p0.2 (MPa)	Tensile strength R_m (MPa)	Impact energy KV (J)	Elongation at fracture A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
717 (≥)	941 (≥)	32	32	33	Solution and Aging, Annealing, Ausaging, Q+T,etc	143

Physical properties of grade E
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
539 (≥)	958 (≥)	22	32	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	341
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
515	178	374

E Range of products
Product type	Products	Dimension	Processes	Deliver Status
Plates / Sheets	Plates / Sheets	0.08-200mm(T)WL	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
Y1Cr18Ni9Se	STAS/SR	Romania	Improve the machinability, ablation resistance. Suitable for automatic lathe production of rivets, screws
1Cr18Ni9Si3	STAS/SR	Romania	Cold rolled steel sheet
Rene 41	STAS/SR	Romania	These products have been used typically for parts requiring high strength up to 1600 °F (871 °C) and oxidation resistance up to 1800 °F (982 °C), but usage is not limited to such applications
303Se	STAS/SR	Romania	Stainless and heat resisting steels
A 314 303Se	STAS/SR	Romania	Stainless and heat resisting steels
A 473 303 Se	STAS/SR	Romania	Austenitic stainless steel forgings for general use
A 511 MT303Se	STAS/SR	Romania	Austenitic stainless steel forgings for general use
A 581 Type 303Se	STAS/SR	Romania	Free machining stainless and heat resisting steel wire
A 582 Type 303Se	STAS/SR	Romania	Free-machining stainless steel bars
A 895 Type 303Se	STAS/SR	Romania	Free-machining stainless steel bars
A 959 Type 303Se	STAS/SR	Romania	Specifying harmonized standard grade compositions for wrought stainless steels
F 593 303 Se	STAS/SR	Romania	Standard Specification for Stainless Steel Bolts, Hex Cap Screws, and Studs
F 594 303Se	STAS/SR	Romania	Standard Specification for Stainless Steel Nuts
F 880 Class A1-50 303Se	STAS/SR	Romania	Standard Specification for Stainless Steel Socket Set Screws (Metric)
F 880 Class A1-70 303Se	STAS/SR	Romania	Standard Specification for Stainless Steel Socket Set Screws (Metric)
SUS 303Se	STAS/SR	Romania	Standard Specification for Stainless Steel Socket Set Screws (Metric)
SUS303Se	STAS/SR	Romania	Standard Specification for Stainless Steel Socket Set Screws (Metric)
A 314 S30323	STAS/SR	Romania	Stainless Steel Billets and Bars for Forging
A 473 S30323	STAS/SR	Romania	Stainless Steel Forgings
A 581 S30323	STAS/SR	Romania	Free-Machining Stainless Steel Wire and Wire Rods