Technical conditions for plates of X8Ni9 X8Ni9 manufacturer from China Gloria Steel

Product Detail

Model No.: X8Ni9

Production Capacity: 3000~5000T

Delivery Date: 30 days

Means of Transport: Ocean

Packing: Standard seaworthy export p...

The technical conditions apply to plates of X8Ni9 with thickness not more than 50mm. (8mm-50mm)

Technical conditions for plates of X8Ni9

1.Scope

The technical conditions apply to plates of X8Ni9 with thickness not more than 50mm. (8mm-50mm)

2.Adopt standard:

BS EN10028-4 Flat products made of steels for pressure purposes-Nickel alloy steels with specified low temperature properties.

3.Dimension, Shape, Weight and Permissible Deviation

The dimension, shape, weight and permissible deviation shall meet the requirements of EN10029.

4.Technical conditions

4.1Chemical composition (Ladle analysis)

The chemical composition of plates shall be accordance with the following table 1.

Table 1 Chemical composition (Ladle analysis)

C	Si	Mn	P	S	Alt	Mo	V	Ni
Max 0.10	Max 0.35	0.30- 0.80	Max 0.012	Max 0.004	Min 0.02	Max 0.10	Max 0.05	8.5- 10.0

Note: Ni+Cu+Mo =<0.50%

4.2Mechanical properties

The mechanical properties of X8Ni9 shall meet the requirement as table 2.

Table 2 Tensile properties

4.3Surface quality

The surface quality of plates shall be accordance with EN10163-2.

4.4Ultrasonic inspection

Plates shall be ultrasonic inspected per EN10160-1999 S2E2.

4.5Test method and inspection rules

Test items, sampling quantity, sampling method and test method shall conform to table 4.

Table 4 Test items for plates

No.	Test item	Quantity, Piece	Sampling method	Test method
1	Chemical composition (Ladle analysis)	1 (per batch furnace number)	EN10028-4	EN10028-4
2	Tensile test	1 (Rolled pc)	EN10028-1	EN10028-1
3	Impact test at -196C	3 (Rolled pc)	EN10028-1	EN10028-1
4	Thickness tension	3 (Rolled pc)	EN10164	EN10164
5	Product analysis	1 (Product pc)	EN10028-1	EN10028-1
6	Ultrasonic test	Each product pc	EN10160	EN10160