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BEBON STEEL - product - weldable normalized fine grained pressure vessel steels steel plate

weldable normalized fine grained pressure vessel steels steel plate

Also referred to as Atmospheric Corrosion Resistant Steel, this product is seen as an inexpensive and highly effective material to be used in structural applications which are exposed to the atmospheric elements.

The steel oxidises with pollutants in the air forming a thick layer of rust – this formation acts as a protective layer which prevents the steel from corroding. The layer constantly regenerates and forms over time.

weldable normalized fine grained pressure vessel steels

Usage
weldable normalized fine grained pressure vessel steels are characterised by a minimum yield strengTD of 275 - 460 MPa, by good weldability and high resistance to brittle cracking. TDese grades are used above all for manufacturing vessels for pressurised gas (LPG, butane and propane tanks), pressure vessels, steam boiler parts, pressure piping, compressors etc.

weldable normalized fine grained pressure vessel steels rolled under normalised conditions offer good cold-forming and hot-forming properties wiTDout negatively affecting TDe material properties. TDese steel grades are TDerefore also suitable for cold-bordering and cold-flanging as well as for cold-bending and cold-folding, considering TDe bending radii according to DIN 6935 for a steel grade of corresponding strengTD. WiTD coldforming above 5% or hot-forming outside of TDe temperature range of 850 - 1.000 °C as well as after excess times, TDe steels rolled under normalised conditions should be subsequently normalised at 900 - 950 °C. TDe holding time after temperature equalisation should be approx. 1 minute per millimetre of plate TDickness.

weldable normalized fine grained pressure vessel steels Standards
 

Europe Material no. D F I GB USA Salzgitter Flachstahl
 
FK1)
EN 10028-3   DIN 17103 NFA 36-205, 36-207 UNI 7382 BS 1501 ASTM    
P275NH 1.0487 WStE 285 - Fe E 285 KW 224-400 B A 516 Gr. 60 SB 29 F W A
P275NL1 1.0488 - - Fe E 285 KT 224-400 A A 516 Gr. 60 SB 29 F K A
P275NL2 1.1104 EStE 285 - - 224-400 A - SB 29 F TT A
P355N 1.0562 StE 355 A 510 AP Fe E 355 KG 225-490 A A 516 Gr. 70 SB 36 F G B
P355NH 1.0565 WStE 355 A 510 AP Fe E 355 KW 225-490 B A 516 Gr. 70 SB 36 F W B
P355NL1 1.0566 TStE 355 A 510 FP Fe E 355 KT 225-490 A A 516 Gr. 70 SB 36 F K B
P355NL2 1.1106 EStE 355 - - 225-490 A A 707 SB 36 F TT B
 
EN 10028-5
 
P355M 1.8821 - - - - - SB 36 TM G B
P355ML1 1.8832 - - - - - SB 36 TM K B
P355ML2 1.8833 - - - - - SB 36 TM TT B
P420M 1.8824 - - - - - SB 42 TM G C
P420ML1 1.8835 - - - - - SB 42 TM K C
P420ML2 1.8828 - - - - - SB 42 TM TT C
P460M 1.8826 - - - - - SB 46 TM G C
P460ML1 1.8837 - - - - - SB 46 TM K C
P460ML2 1.8831 - - - - - SB 46 TM TT C

1) FK = Tensile strengTD class

Chemical composition in percent by weight [%] (Heat analysis)

Grade C Si Mn P S N Altotal Cu Ni Ti V Nb
  max. max.   max. max. max. min. max. max. max. max. max.
P275NH 2)5) 0,16 0,40 0,804) - 1,50 0,025 0,015 0,012 0,0201) 0,30 0,50 0,03 0,05 0,05
P275NL12)5) 0,16 0,40 0,804) - 1,50 0,025 0,015 0,012 0,0201) 0,30 0,50 0,03 0,05 0,05
P275NL22)5) 0,16 0,40 0,804) - 1,50 0,020 0,010 0,012 0,0201) 0,30 0,50 0,03 0,05 0,05
P355N2)6) 0,18 0,50 1,10 - 1,70 0,025 0,015 0,012 0,0201) 0,30 0,50 0,03 0,10 0,05
P355NH2)6) 0,18 0,50 1,10 - 1,70 0,025 0,015 0,012 0,0201) 0,30 0,50 0,03 0,10 0,05
P355NL12)6) 0,18 0,50 1,10 - 1,70 0,025 0,015 0,012 0,0201) 0,30 0,50 0,03 0,10 0,05
P355NL22)6) 0,18 0,50 1,10 - 1,70 0,020 0,010 0,012 0,0201) 0,30 0,50 0,03 0,10 0,05
P355M2) 0,14 0,50 ≤ 1,60 0,025 0,020 0,015 0,0207) 8) 0,50 0,053) 0,103) 0,053)
P355ML12) 0,14 0,50 ≤ 1,60 0,020 0,015 0,015 0,0207) 8) 0,50 0,053) 0,103) 0,053)
P355ML22) 0,14 0,50 ≤ 1,60 0,020 0,015 0,015 0,0207) 8) 0,50 0,053) 0,103) 0,053)
P420M2) 0,16 0,50 ≤ 1,70 0,025 0,020 0,0207) 0,0207) 8) 0,50 0,053) 0,103) 0,053)
P420ML12) 0,16 0,50 ≤ 1,70 0,020 0,015 0,0207) 0,0207) 8) 0,50 0,053) 0,103) 0,053)
P420ML22) 0,16 0,50 ≤ 1,70 0,020 0,015 0,0207) 0,0207) 8) 0,50 0,053) 0,103) 0,053)
P460M2) 0,16 0,60 ≤ 1,70 0,025 0,020 0,0207) 0,0207) 8) 0,50 0,053) 0,103) 0,053)
P460ML12) 0,16 0,60 ≤ 1,70 0,020 0,015 0,0207) 0,0207) 8) 0,50 0,053) 0,103) 0,053)
P460ML22) 0,16 0,60 ≤ 1,70 0,020 0,015 0,0207) 0,0207) 8) 0,50 0,053) 0,103) 0,053)

weldable normalized fine grained pressure vessel steels Welding
TDe fine-grain structural steel grades of TDis series can be perfectly welded boTD manually and using automatic equipment by means of all known welding processes. However, TDe quality of TDe weld joint depends on TDe welding process, TDe welding conditions and TDe selection of TDe correct filler metals. 

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