In this condition, ASTM AH36 steel and A36 steel is totally the same. However, at most times, ASTM A36 steel means another steel type, it is A36 mild steel. A36 mild steel is for general construction, seldom used for ship building. A36 mild steel strength is lower than ASTM AH36 Comparison between European Standard and Chinese (3) GB/T712s DH36/EH36 are different with EN10025 S355:a) DH36/EH36 require that the yield strength of all thicknesses is not less than 355Mpa; while the EN10025 standard requires that the minimum yield strength of thickness 16mm is 355Mpa. The yield strength of thicker steel plates decreases with the increase in thickness.
what difference between AH36and DH36 steel? As noted by several, the chemical composition of AH and DH is the same, indeed this is also true for EH grade too. It all relates to the thickness and mechanical properties at that thickness of the plate you wish to use. Eh36 China Trade,Buy China Direct From Eh36 Factories at AH36 DH36 EH36 Shipbuilding Steel Price steel manufacturing hot rolled steel sheet Jinan Suorong Trade Co., Ltd. US $550.00-$650.00 / Metric Ton Shipbuilding Steel Plate - AH36, EH36 & DH36 - LRS and DNVMill is Dillinger Hutte so steel produced in Germany and rolled in either Germany or France (G7 Origin). MTCs to EN10204 3.2. Thickness 5 150 mm. Widths 1500, 2000, 2055, 2500 and 3000 metres. Lengths:6m, 12m and 14m. Our main focus is high performance EH36 and DH36 plates with the thickest plates being to Lloyds Register.
The difference between A36 and DH36 steelmechanical properties From above tables, we find the impact temperature of A36 and DH36 steel is different. A36 steel do 0 impact test, while DH36 steel do -20impact test. Therefore, though both A36 and DH36 steel are shipbuilding steel, they are used under different environment. What is the difference between steel grade AH36 and steel For the difference between steel grade AH36 and steel grade A36, there are 2 conditions. First condition, steel grade AH36 and steel grade A36 is totally 2 different steel species. Which steel grade is best equivalent to S355J2+N Firstly we suggest steel grade equivalent S355J2+N is ship steel plate ASTM A131 GR.DH36 (minimum yield strength 355 MPa, Tensile 490 to 620 Mpa, heat treatment under normalized or TMCP, charpy V-notch impacting test @ -20 ).Then ASTM A131 Gr.EH36 (minimum yield strength 355 MPa, Tensile 490 to 620 Mpa, heat treatment under normalized or TMCP, charpy V-notch impacting test @ -40 )
The same techincals as A131 GR.DH36 and EH36,ABS Grade DH36 and ABS Grade EH36 are both ok for replacing of S355J2+N. Second we can suggest you choose alloy structural steel ASTM A572Gr50 (minimum yield strength 345 MPa, Tensile above 450 MPa).Of course adding techincals Normalized heat treatment and Charpy V-notch impacting test -20 centigrade ABS Grade AH36 - A516Gr70|ABS EH36|LR AH36,ABS Grade EH36,ABS GRADE FH36,ABS Grade DH36 .All these grades owned 355Mpa yield strength and minimum 490Mpa tensile strength.Steel mark on the delivery steel plates shall be AB/AH36,AB/DH36,AB/EH36 and AB/FH36 . Now we give you the comparasion table of these common grade as belows:Property Data:Grade ABS Grade AH36 ABS