

Boiler quality plate materials ASTM A-516 Gr.55 N to KNPC
In advantage of our good price and higher quality,its offering thousands tons ASTM boiler quality plates materials A516 Gr55,A 516 55.70 Noramlized,A516 Gr.55 NACE MR-0175 Sour service used to KNPC.Our boiler and pressure vessel steel plates ASTM-A516 can easily get approved by designed third party inspection VELOSI and according to KNPC’s HSE policy.
Each year KNPC (Kuwait National Petroleum Company) sent out many steel tenders for their oil and gas pressure vessels built.Among these steel tanders,there are many of pressure vessel steel plates ASTM A516 Grade 55 specifications materials.
Relative steel grades to ASTM A516 GR.55: 16Mo3,15Mo3,A204 Grade A,A285 Grade C,SA299 Grade A,SA387,A516 Grade 70,A516 Grade 60,A516Gr65,A387GR
Rolling range:Thickness*Width*Length 5-650mm*1200-4200mm*5000-18000mm
Test: Low temperature impacting test,Ultrasonic examination,Normalized,NACE,HIC,SSCC and Third party inspections by end user.
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►Mechnical property for A516 Grade 55 N boiler steel:
Yield strength (Mpa) |
Tensile strength (Mpa) |
Elongation in ≥,% | |
205 |
380-515 |
200mm |
50mm |
23 |
27 |
►Chemical composition for A516 Grade 55 N boiler steel (Product Analysis Max%)
Main chemical elements composition of A516 Grade 55 | |||||
Thickness(mm) |
C |
Si |
Mn |
P |
S |
T≤12.5 |
0.18 |
0.13-0.45 |
0.55-0.98 |
0.035 |
0.035 |
12.5<T≤50 |
0.20 |
0.55-1.30 | |||
50<T≤100 |
0.22 | ||||
100<T≤200 |
0.24 | ||||
T>200 |
0.26 |
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