SA738GR.B standard: ASME SA-738/SA-738M Specification for pressure plates,heat-treated,carbon-manganese-silicon steel.
SA738GR.B Specification: Thickness: 5mm to 200mm; Width: 1500mm to 3500mm: Length: 3000mm to 27000mm
Third Party Inspection for SA738GR.B: ABS, DNV, BV, GL, CCS, LR, RINA, KR, NK, CE, SGS, IKE, IEI or other quality department.
SA738GR.B Chemical composition% of the Product analysis of grade
|
Grade |
C % |
Mn %(<65mm) |
Mn %(>65mm) |
P% |
S% |
Si% |
Cu% |
Ni% |
|
SA738GR.B |
0.20 |
0.84-1.62 |
0.84-1.72 |
0.030 |
0.030 |
0.13-0.60 |
0.38 |
0.63 |
|
Cr% |
Mo%(40mm) |
Mo%(<40mm) |
V% |
Cb% |
Cb plus V |
|
|
|
|
0.34 |
0.30 |
0.33 |
0.08 |
0.05 |
0.10 |
|
|
These data indicate that SA738GrB steel plate exhibits high strength and excellent plasticity, enabling it to withstand high loads while maintaining its shape and integrity under stress. The content of these elements has a significant impact on the performance of SA738GrB steel plate. Iron is the main component of steel; carbon can enhance the hardness and strength of the steel plate, but excessive C content may reduce its toughness. Elements such as Si and Mn can increase the strength of the steel plate, while elements like P and S can adversely affect its brittleness. Elements such as Cr, Ni, and Mo can improve the corrosion resistance of the steel plate, allowing it to maintain good performance even in harsh environments.
Overall, the mechanical properties and chemical composition of SA738GrB steel plate are critical parameters, holding vital significance for the industries and fields that utilize this material. Only by fully understanding these parameters can this high-quality steel be better selected and applied, ensuring outstanding performance and reliable safety in operation.
SA738GR.B Mechanical Property
|
Grade |
Min Yield |
Tensile |
Thicknesss |
Elongation |
|
SA738GR.B |
415 Mpa |
585-705Mpa |
<65MM |
20% |
|
415 Mpa |
585-705Mpa |
65-100MM |
20% |
|
|
|
415 Mpa |
585-705Mpa |
>100MM |
20% |
Commonly used in nuclear island-grade steel plates for nuclear power projects, it exhibits high yield and tensile strength, with yield strength generally ≥415 MPa and tensile strength ranging from 585 to 705 MPa. It requires low-temperature impact testing at -18°C and below and is delivered in the quenched and tempered condition. Several major domestic steel mills have obtained relevant certifications.
In accordance with the French RCC-M and ASME nuclear standards, a quality assurance system for nuclear product production has been established and is effectively operational, ensuring compliance with the technical requirements for steel materials used in nuclear power equipment manufacturing. It is commonly used in the fabrication of key equipment for conventional and nuclear islands, such as containment liners, safety gates, boron injection tanks, safety injection tanks, steam-water separators, high-pressure heaters, deaerators, evaporators, and pressure stabilizers.
