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JIS G3467 boiler tube specifications-CONTINENTAL STEEL CO.,LTD
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JIS G3467 boiler tube specifications

Mar 04, 2024

JIS G3467 boiler tube specifications

JIS G3467 boiler tubes include carbon steel tubes, alloy steel tubes, stainless steel tubes and nickel-chromium iron alloy tubes. Its application is for heating fluids in open-fire heaters such as boilers in the petrochemical industry.

Mechanical Properties:

Symbol of class Division of finish Tensile strength

N/П

{kgf/П}

Yield point or proof stress

N/П

{kgf/П}

Elongation %
No. 11 test piece

No. 12 test piece

No. 5 test piece No. 4 test piece
Longitudinal direction Transverse direction Longitudinal direction Transverse direction
STF 410 - 410min{42} 245 min{25} 25 min 20 min 24 min 19 min
STFA 12 - 380min{39} 205 min{21} 30 min 25 min 24 min 19 min
STFA 22 - 410min{42} 205 min{21} 30 min 25 min 24 min 19 min
STFA 23 - 410min{42} 205 min{21} 30 min 25 min 24 min 19 min
STFA 24 - 410min{42} 205 min{21} 30 min 25 min 24 min 19 min
STFA 25 - 410min{42} 205 min{21} 30 min 25 min 24 min 19 min


Dimension tolerance:

Nominal diameter Outside diameter(mm) wall thickness (mm) 4.0 4.5 5.0 5.5 6.0 6.5 7.0 8.0 9.5 11.0 12.5 14.0 16.0 18.0 20.0 22.0 25.0 28.0
A B
50 2 60.5 5.57 6.21 6.84 7.46 8.06 8.66 9.24 10.4 11.9                  
65 2 1/2 76.3   7.97 8.79 9.60 10.4 11.2 12.0 13.5 15.6                  
80 3 89.1   9.39 10.4 11.3 12.3 13.2 14.2 16.0 18.6 21.2                
90 3 1/2 101.6   10.8 11.9 13.0 14.1 15.2 16.3 18.5 21.6 24.6 27.5              
100 4 114.3     13.5 14.8 16.0 17.3 18.5 21.0 24.6 28.0 31.4 34.6            
125 5 139.8     16.6 18.2 19.8 21.4 22.9 26.0 30.5 34.9 39.2 43.4 48.8          
150 6 165.2       21.7 23.6 25.4 27.3 31.0 36.5 41.8 47.1 52.2 58.9 65.3        
200 8 216.3           33.6 36.1 41.1 48.4 55.7 62.8 69.8 79.0 88.0 96.8 105    
250 10 267.4           41.8 45.0 51.2 60.4 69.6 78.0 87.5 99.2 111 122 133 149 165

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