Hot finished structural hollow sections of non-alloy and fine grain steels

Overview Application It Is Mainly Used for Mechanical structure，general structure. Main Grade S235GRH, S275JOH, S275J2H, S355JOH, S355J2H Chemical Component grade Deoxygenated Type a % Mass, maximum Steel name Steel nmber C Prescribed wall thickness  mm Si Mn P S Nbc ≤ 40 ＞ 40≤ 120 S235JRH 1.0039 FN 0.17 0.20 — 1.40 0.040 0.040 0.009 S275J0H 1.0149 FN 0.20 0.22 — 1.50 0.035 0.035 0.009 S275J2H 1.0138 FF 0.20 0.22 — 1.50 0.030 0.030 — S355J0H 1.0547 FN 0.22 0.22 0.55 1.60 0.035 0.035 0.009 S355J2H 1.0576 FF 0.22 0.22 0.55 1.60 0.030 0.030 — S355K2H 1.0512 FF 0.22 0.22 0.55 1.60 0.030 0.030 — a The definition of deoxidation method is as follows: FN = Boiling steel is not allowed FF = fully-killed steel containing nitrogen-binding elements in an amount sufficient to bind possible nitrogen (E.g. 0.020% minimum total aluminum or 0.015% soluble aluminum) b It is allowed to exceed the specified value, as long as the N content increases by 0.001%, the maximum content of P decreases by 0.005% at the same time. The N content in the smelting analysis should not exceed 0.012%. c If the chemical composition shows a minimum total aluminum content of 0.020% and a minimum Al / N ratio of 2: 1, or if other sufficient nitrogen-binding elements are present, the above maximum nitrogen content limits do not apply. Nitrogen binding elements shall be noted in the inspection documents. Mechanical Property Grade Minimum yield tensile strength Minimum elongation Minimum impact power Steel name Steel number Standard thickness Standard thickness Standard thickness Standard thickness ≤16 ＞ 16 ＞ 40 ＞ 63 ＞ 80 ＞ 100 ≤3 ＞ 3 ＞ 100 ≤40 ＞40≤63 ＞63≤100 ＞100≤120 -20℃ 0℃ 20℃ ≤ 40 ≤ 63 ≤ 80 ≤ 100 ≤ 120 ≤100 ≤ 120 S235JRH 1.0039 235 225 215 215 215 195 360-510 360-510 360-500 26 25 24 22 - - 27 S275J0Hc 1.0149 275 265 255 245 235 225 430-580 410-560 400-540 23 22 21 19 - 27 - S275J2H 1.0138 27 - - S355J0Hc 1.0547 355 345 355 325 315 295 510-680 470-630 450-600 22 21 20 18 - 27 - S355J2H 1.0576 27 - - S355K2H 1.0512 40 - - a Longitudinal sample value. The standard value of the transverse specimen is 2% lower than this value.b For thicknesses <3mm, see 9.2.2.c Only when option 1.3 is applied, confirmation of impact performance is required.d See 6.6.2 for the impact properties of small-sized specimens.e This value is equivalent to 27J at -30 ° C (see EN 1993-1-1).   Test Requirement Hardness Test, Tension Tests, Nondestructive Tests, Steel Cleanliness, Hardenability, Flaring Test Supply Ability Supply Ability: 2000 Tons Per Month Per Grade Of BSEN10210-1-2006 Steel Pipe Packaging In Bundles And In Strong Wooden Box Delivery 7-14 days if in stock, 30-45 days to produce Payment 30% depsoit, 70% L/C or B/L copy   or  100% L/C at sight Product Detail Seamless Steel Tubes For Mechanical Engineering And Normal Structure GB/T8162-2008 ASTM A519-2006 BS EN 10210-1-2006 ASTM A53/A53M-2012 GB9948-2006 GB6479-2013 GB/T 17396-2009