4250 جودةمواصفات الورقة

4250 جودة مواصفات الورقة

High-strength structural steels for manufacture of any kind of machines and machine parts, general construction, road and railway vehicles

البدائللا يوجد بديل لهذه الورقة.

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.

High-strength structural steels for manufacture of any kind of machines and machine parts, general construction, road and railway vehicles

التركيب الكيميائي (%)

المعيار المكافئرقم جودة إرديميرCmax.Mnmax.Pmax.Smax.Simax.Nmax.Cumax.CEmax.
المعيارجودة
EN 10025-2:2019S355JR+AR CTA42500.241.600.0350.0350.03120.000.550.45
  1. Suitable for galvanizing as "Category A". Category A contains Si ≤ 0.030% and Si+2.5P ≤ 0.090%.
  2. Max carbon equivalent (CE) is increased by 0.01 % for Si ≤ 0.25%, and 0.02 % for Si ≤ 0.04 %
  3. The maximum value for nitrogen does not apply if the chemical composition shows a minimum total aluminium content of 0.020%.
  4. Carbon equivalent, CEV (IIW) % = C + Mn / 6 + (Cr + Mo + V) / 5 + (Ni + Cu) / 15

الخواص الميكانيكية

المعيار المكافئرقم جودة إرديميرRe [N/mm2]Rm [N/mm2] t(thickness, mm)A(%) min. t(thickness, mm)Impact
المعيارجودة
1.8≤t≤2.993≤t≤20A801.8≤t≤2A802.01≤t≤2.5A802.51≤t≤2.99A53≤t≤20Temperature ( ° C)6≤t≤7.49KVC J min.6≤t≤7.49Temperature ( ° C)7.5≤t≤9.99KVC J min.7.5≤t≤9.99Temperature ( ° C)10≤t≤20KVC J min.10≤t≤20
EN 10025-2:2019S355JR+AR CTA4250355 min.510-680470-63014151620201420212027
  1. Tensile test values apply to "transverse" test pieces
  2. The impact test is carried out only when specified at the time of enquiry and order and is not carried out for thickness thinner than 6 mm.