Comparing with other boiler steel grades in ASTM A203/A203M boiler steel plate A203 Grade F owned a higher yield strength above 380 Mpa for plates thickness equal and belows 100MM, and tensile strength above 550 Mpa.
ASTM A203 Grade F pressure vessel steel chemical composition:
|
Grade |
C |
Mn |
P |
S |
Si |
Ni |
|
A203 Grade F |
0.20-0.23 |
0.88 |
0.025 |
0.025 |
0.13-0.45 |
3.18-3.82 |
ASTM A203 Grade F Nickel Plate mechanical properties:
|
Grade |
Thickness |
Tensile Strength MPa (ksi) |
Yield Strength MPa (ksi) |
% Elongation in 2 in.(50mm) min |
|
A203 Grade F |
≤50 |
550-690(80-100) |
380(55) |
20 |
|
>50 |
515-655(75-95) |
345(50) |
The maximum thickness of A203 Grade F pressure vessel plates is limited only by the capacity of the composition to meet the specified mechanical property requirements, however, current practice normally limits the maximum thickness of A203 Grade F boiler plates furnished under 100 mm.
All plates of A203 Grade F Nickel Plate shall be heat treated by heating into the austenitic range, quenching in water, and tempering at not less than 1100℉[595℃] for not less than ½ h.
A203 Grade F Nickel Plate Technical Requirements & Additional Services:
High tension test
Low temperature impacting test
Simulated post-welded heat treatment (PWHT)
Rolling under standard NACE MR-0175 (HIC+SSCC)
Issued Original Mill test certificate under EN 10204 FORMAT 3.1/3.2
Shot blasting and Painting, Cutting and welding as per user’s demands
Contact Katalor for more information of ASTM A203 Grade F pressure vessel steel.
