GB 713 Q245R pressure vessel and boiler steel sheets

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GB 713 Q245R pressure vessel and boiler steel sheets

GB 713 Q245R pressure vessel and boiler steel sheets

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Description:GB 713 Q245R steel is one of the most widely used Chinese boiler and pressure vessel steel materials. GB 713 Q245R pressure vessel steel plates and boiler steel...

Production Capacity:6000ton//Month

E-mail: [email protected]

Products Description

GB 713 Q245R steel is one of the most widely used Chinese boiler and pressure vessel steel materials. GB 713 Q245R pressure vessel steel plates and boiler steel sheets are suitable for medium and normal temperature service. The thickness range of Q245R pressure vessel steel plates is 3-250mm.

GB 713 Q245R pressure vessel steel plates and boiler steel sheets chemical composition ( max, %):

Grade C Si Mn Cu Ni Cr Mo Nb V Ti Alt P S Other
Q245R 0.20 0.35 0.50-1.10 0.30 0.30 0.30 0.08 0.05 0.05 0.03 ≥0.02 0.025 0.01 Cu+Cr+Ni+Mo≤0.70

Notes: 1) The lower limit of C content may not be required upon agreement between the supplier and buyer.
2)The upper limit of manganese content can be increased to 1.20% for Q245R pressure vessel steel plates above 60mm thick.

GB 713 Q245R pressure vessel steel plates and boiler steel sheets mechanical property:

Thickness (mm) > 3 ≤ 16 > 16 ≤ 36 > 36 ≤ 60 >60 ≤ 100 >100 ≤ 150 >150 ≤ 250
Yield strength (≥Mpa) 245 235 225 205 185 175
Tensile strength (Mpa) 400-520 390-510 380-500 370-490
Elongation ≥25% ≥24%

Trace niobium, vanadium and titanium can be added to Q245R pressure vessel steel plates, and the contents should be filled in the quality certificate. The total contents of the above three elements should not be greater than 0.050%. GB 713 Q245R pressure vessel steel plates and boiler steel sheets shall do 0℃ impact test. The min. impact energy is 34J.

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