Sell EN 10028-2 20MNMONI4-5 steel plates

Qfsteels are specialized in producing and exporting EN10028-2 20MNMONI4-5 steel plates Boiler steel plate. 20MNMONI4-5 steel plates Low alloy and high strength steel plate,   heavy plate and wide, heavy plate.


Keyword: 20MNMONI4-5,EN10028-2 20MNMONI4-5,20MNMONI4-5 Steel,20MNMONI4-5 HIC, 20MNMONI4-5 NACE


  1. 20MNMONI4-5 Adopt standard: EN10028-2 Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel
  2. 20MNMONI4-5 Specification: Thickness: 1mm to 200mm; Width: 1500mm to 3500mm: Length: 3000mm to 27000mm
  3. Third Party Inspection for 20MNMONI4-5: ABS, DNV, BV, GL, CCS, LR, RINA, KR, NK, CE, SGS, IKE, IEI or other quality department.
  4. 20MNMONI4-5 steel plates Chemical composition % of the Product analysis of grade
20MnMoNi4-5 Chemical Composition
Grade The Element Max (%)
C Si Mn P S Al(min) N
20MnMoNi4-5 0.15-0.23 0.40 1.0-1.50 0.020 0.010   0.012
Cr Cu Mo Nb Ni Ti V
0.20 0.20 0.45-0.60   0.4-0.80   0.02


  1. 20MNMONI4-5 Mechanical Property
Grade   20MnMoNi4-5 Mechanical Property
Thickness Yield Tensilmie Elongation Impact Energy(KV J) min
20MnMoNi4-5 mm Min Mpa Mpa Min  % -20° +20°
≤ 40 470 590-750 18 27 40 50
40> to ≤60 460 590-730 18 27 40 50
60> to ≤100 450 570-710 18 27 40 50
100> to ≤150 440 570-710 18 27 40 50
150> to ≤250 400 570-710 18 27 40 50


EN10028 steel grade supersedes the older BS and DIN standards. 20MNMONI4-5 steel grade is one of grade in En10028-2, which is non alloy and alloy steels with specified elevated temperature properties. 20MNMONI4-5 steel plates grade are used above all for manufacturing boilers, pressure vessels and pipes transporting hot liquids.


  1. 20MNMONI4-5 Delivery Time Or Lead Time: 15-30days
  2. 20MNMONI4-5 Extra Service: Pretreatment (Shot Blasting, Sand Blast, Painting and Galvanized), Cutting Parts, Sample Service, Third Party inspection, UT Test and Size inspection.
  3. If you have any requirement in steel plate for 20MNMONI4-5 steel plates, whether the new plate or stock list of material, please feel free to contact us by email of calling.
  4. If you had any question at our plate or service. Please contact our after service department to get faster reply.

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Supplementary Requirements

S2. Product Analysis,       S8: Ultrasonic Examination

S3: Simulated pos-weld heat treatment of mechanical

S15: Reduction of area measurement and test coupons

S18: Maximum Tensile strength

S6: Drop weight test

S30:Charpy V notch impact test for structural shapes


Welcome to Qfsteels Group and any requirement in steel material 20MNMONI4-5 steel plates, please feel free to contact us.



Sell EN 10028-2 20MNMONI4-5 steel plates