4240 QualitySheet Specification

4240 Quality Sheet Specification

Hot rolled unalloyed structural steels for manufacture of construction equipment, machines and various machine parts, general construction plates, road and railway vehicles

AlternativesThere is no alternative to this sheet.

Flat / Hot Rolled

Flat steel products are obtained by heating semi-finished products with a rectangular cross-section (slab), which are produced by the continuous casting method, to a specific temperature and then rolling them, with thicknesses ranging from 1.40 to 25.40 mm and widths ranging from 700 to 2025 mm, produceed as coil or by cutting/slit-coiling flat steel products from coils.

Hot rolled unalloyed structural steels for manufacture of construction equipment, machines and various machine parts, general construction plates, road and railway vehicles

Chemical Composition (%)

Standard Equivalent		Erdemir Grade No	Cmax.	Mnmax.	Pmax.	Smax.	Simax.	Almin.	Almax.	Crmax.	Momax.	Nimax.	Timax.	Cumax.	CEmax.
Standard	Quality	Erdemir Grade No	Cmax.	Mnmax.	Pmax.	Smax.	Simax.	Almin.	Almax.	Crmax.	Momax.	Nimax.	Timax.	Cumax.	CEmax.
AS NZS 1594:2002	HA250 (MOD)	4240	0.20	1.20	0.04	0.03	0.03	0.015	0.10	0.25	0.05	0.25	0.04	0.25	0.39

Carbon equivalent, CEV (IIW) % = C + Mn / 6 + (Cr + Mo + V) / 5 + (Ni + Cu) / 15
Cu+Ni+Mo max %0.60 and Nb+V max %0.03
This grade is produced at İsdemir.

Mechanical Properties

Standard Equivalent		Erdemir Grade No	Re [N/mm2]	Rm [N/mm2]	A(%) min. t(thickness, mm)						Bend (Transverse , BMD) t: thickness
Standard	Quality				A(%) min. t(thickness, mm)						Bend (Transverse , BMD) t: thickness
Standard	Quality				A801.39≤t≤3	A501.39≤t≤3	A2001.39≤t≤3	A2003.01≤t≤22	A803.01≤t≤22	A503.01≤t≤22	180°1.39≤t≤5	180°5.01≤t≤22
AS NZS 1594:2002	HA250 (MOD)	4240	250 min.	350 min.	20	22	16	17	24	26	Ø t	Ø 2t

Tensile test values apply to "longitudinal" test pieces
A50 is shown on the test certificate within the framework of agreements with customers.