Tensile yield and delivery status of 16MnD5, 18MnD5, 20MnD5 nuclear power steels

Nuclear power steel is mainly used for conventional island and nuclear island nuclear energy reactor pressure vessel and its subordinate equipment in nuclear power plant projects, and the implementation of the special technical condition standard is: GB30814. The nuclear power steel plates are made of Q205HD, Q230HD, Q250HD, Q275HD, Q345HD, Q420HD, 20MnHR, 16MnHR, 20HR, 16MnD5, 18MnD5, 20MnD5.

Chemical composition of 16MnD5, 18MnD5, 20MnD5 steel plates:
16MnD5 nuclear power steel chemical composition:
Silicon Si: 0.17-0.37, Manganese Mn: 0.70-1.00, Sulfur S: ≤0.035, Phosphorus P: ≤0.035,
Chromium Cr: ≤0.25, Nickel Ni: ≤0.25, Copper Cu: ≤0.25

Chemical composition of 18MnD5 steel plate:
C: Carbon: 0.2, Si: Silicon: 0.1-0.31, Mn: Manganese 15-1.6, P: Phosphorus≤0.012,
S: Sulfur≤0.012, Al: Aluminum≥0.04, Cr: Chromium≤0.25, Mo: Molybdenum 0.45-0.55

Chemical composition of 20MnD5 nuclear power steel plate:

Tensile yield strength of 16MnD5, 18MnD5, 20MnD5 steel plates:
16MnD5 mechanical properties
Tensile strength σb (MPa): ≥620(63)
Yield strength σs (MPa): ≥375(38)
Elongation δ5 (%): ≥15
Area shrinkage ψ (%): ≥40
Impact energy Akv (J): ≥39
Impact toughness value αkv (J/cm2): ≥49(5)
Hardness: unheated ≤241HB annealed steel ≤217HB

Tensile yield strength of 18MnD5 steel plate:
Yield Strength: 420
Tensile Strength: 580
Elongation: 18%
Impact energy: 40J

16MnD5, 18MnD5, 20MnD5 nuclear power steel plate delivery status: normalized delivery, can be delivered according to customer specific requirements