20MnD5 Nuclear steel plate

The technical conditions apply to plates of 20MnD5 with thickness not more than 120mm. Surface shot blasting or peeled.

Technical conditions Steel making process: EAF+LF/VD

Grain size:
Grain size for plates shall be according to 20MnD5

Ultrasonic inspection:
Plates shall be ultrasonic inspected per EN10160-1999 S3E4

Test method and inspection rules Package, marking and certificate Package, marking and certificate shall conform to EN100218-1:2000.

The third party inspection Delivery conditions the delivery conditions for plates of 20MnD5shall be quenching +tempering.

Other requirements the other requirements for plates of 20MnD5 shall be accordance with 16MnD5.

20MnD5 Chemical Composition:

	C	Si	Mn	P	S	Cr
Max	0.22	0.15-0.30	1.2-1.50	0.008	0.008	0.25
	Ni	Mo	v	Cu	TAL
Max	0.37-0.73	0.43-0.62	0.03	0.20	0.04

20MnD5 Mechanical properties:

Grade

Mechanical properties

20MnD5

Yield strength MPa

Tensile strength MPa

Elongation %

Size:0-160mm

Min 450

620-795

Min 20

20MnD5 Impact properties:

Impact Test	Transverse 1/4 Thickness
		Average impact energy
	0℃	Min 80J
	-20C	Min 40J