The Relevant Family Steel Grades of P355NH:
P275NH, P275NL1, P275NL2, P355N, P355NH, P355NL1, [SCALE STEEL]P355NL2, P460NH, P460NL1, P460NL2.
Steel Grade Levels:
Room Temperature Quality Class: P355N
High Temperature Quality Grade: P355NH
Low Temperature Quality Grade: P355NL1, P460NL1
Special Low Temperature Quality Grade: [SCALE STEEL]P355NL2, P460NL2
P355N, P355NH, P355NL1, P355NL2 thickness 8-260mm
Tensile strength RM630-450mpa, yield strength: 355-295mpa, elongation after fracture 21-22%
Evaluation of Hydrogen Induced Crack Resistance
The evaluation test for hydrogen cracking resistance of steel plate products shall be carried out according to EN10229, and A test solution[SCALE STEEL] (PH 3) or B test solution (PH 5) and corresponding acceptance criteria can be selected.
HIC Test Acceptance Grade:
Acceptance grade: Grade I, Grade II, grade III
CLR% crack length ratio, CTR% crack [SCALE STEEL]thickness ratio, CSR% crack sensitivity ratio.
P355NH is used in Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, [SCALE STEEL]Luxembourg, Malta, The Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland, the United Kingdom.