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Petroleum Industry ASTM A204 GR B Boiler Alloy Steel Sheet Plate

Categories Boiler Alloy Steel Sheet Plate
Brand Name: HDT
Model Number: Steel Plate
Certification: ISO9001,ASME,Grade A,SGS,EN,TUV
Place of Origin: China
Price: 800 - 9000 USD / ton
Payment Terms: L/C, T/T, Western Union
Supply Ability: About 10000 ton / month
Delivery Time: 60-75days
Packaging Details: seaworthy packing for exporting
Product Name: Alloy Steel Plate
Application: Boiler
Surface: Skin Pass
Standard: AISI, ASTM, BS, DIN, GB, JIS, Other, ASTM
Technique: Hot Rolled,Cold Rolled,hardfacing/Surface welding/cladding
Surface treatment: Coated,Galvanized,Other
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Petroleum Industry ASTM A204 GR B Boiler Alloy Steel Sheet Plate

Petroleum Chemical Industry ASTM A 204 Grade B C Boiler Alloy Steel Sheet Plate

Product Information

HDT has advanced medium-heavy plate production process and state-of-the-art facilities,and can produce big concast slab(450x(1400—2600)mm) and big ingot (60tons) .Maximum thickness of structural plate: 610mm.Main grades include: Q235, Q345, Q390, A36, A572Gr42/50, A633D; S235, S275, S355 (CE approved thickness range from 6-350mm),SS490, SM490.A11 grades included in Japanese standard (JIS G310 K JIS G3106) obtained JIS approval ;S355G2-G10+N in European standard got GL approval and its max thickness reached 90mm.Among which, S355 series are widely used for manufecturing wind towers globally, approved by Siemens, Vistas, Gamesa.

Continuous casting slab or primary rolling slab is used as raw material, which is heated by stepping furnace, descaled by high pressure water and then enters roughing mill. Roughing material goes through cutting head, tail and then into finishing mill for computer controlled rolling. After the final rolling, it goes through laminar cooling (computer controlled cooling rate) and coiler coil to become straight hair coil.The head and tail of straight hair roll often show the shape of tongue and fish tail, thickness, width accuracy is poor, the edge often exists wave shape, folded edge, tower shape and other defects.Its coil weight is heavy, steel coil inner diameter is 760mm.

Chemical Composition:

Grades C max Mn max S
Si Cr Cu Mo
A204 Gr A 0.18 0.90 0.035 0.035 0.15-0.40 - - -
A204 Gr B 0.20 0.90 0.035 0.035 0.15-0.40 - - -
A204 Gr C 0.23 0.90 0.035 0.035 0.15-0.40 - - -

Mechanical Properties:

Grade Tensile Strength
Yield Strength


In 100-150 mm (%)


In 16 mm (%)

A204 440-590 220-275 19



Plates Diameter (mm) Length(mm)
Max.800 Max.9000
Round Bar Thickness (mm) Width (mm) Length (mm)
Max.800 Max.2200 Max.9000
The above specifications are our regular size, and we also can provide customized sizes.

40CrNiMoA SNCM439 DIN136511 4340 4340 4340 817M40 R6834

Chemical Composition(Max. %)

Grades C Si Mn P S Cr Ni Mo Cu
40CrNiMoA 0.44 0.37 0.80 0.025 0.025 0.90 1.65 0.25 0.25

Mechanical Properties:

Density (kg/m3) 7830
Modulus of Elasticity(GPa) 209
Tensile Strength (MPa) 980
Yield Strength (MPa) 835
Elongation(%) 12
Percentage Reduction of Area (%) 55
Akv (J) 78
Brinell Hardness GBW 269

Widely used in petroleum, chemical industry, power station, boiler and other industries. It is used in making reactors, heat exchangers, separators, spherical tanks, gas tanks, liquefied gas tanks, nuclear reactor pressure shells, boiler drums, liquefied petroleum gas cylinders, high pressure water pipes of hydropower stations, turbine shells and other equipment and components.

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