Technical conditions for plates of NVE420-Z35 Technical conditions for plates of NVE420-Z35 manufacturer from China Gloria Steel

Technical conditions for plates of NVE420-Z35

Price:	2000.0~5000.0 USD
Payment Terms:	T/T,L/C
Place of Origin:	Guangdong, China (Mainland)


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Product Detail

Model No.: Technical conditions for pl...

Production Capacity: 3000~5000T

Delivery Date: 30 days

Means of Transport: Ocean

Packing: Standard seaworthy export p...

The technical conditions apply to plates of NVE420-Z35 with thickness not more than 150mm. (10mm-150mm)

Technical conditions for plates of NVE420-Z35

1. Scope

The technical conditions apply to plates of NVE420-Z35 with thickness not more than 150mm. (10mm-150mm)

2. Dimension, Shape, Weight and Permissible Deviation

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

The flatness of plates shall be =< 5mm/1m and =<8mm/2m.

3. Technical conditions

3.1 Chemical composition (Ladle analysis)

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

Table 1 Chemical composition (Ladle analysis)

Grade	Si	Mn	P	S	Cr	Ni	B	C	TAL	Nb	V	Ti
NVA420 NVD420 NVE420 (Z35)	0.10- 0.50	Max 1.70	Max 0.025	Max 0.025	Max 0.50	Max 0.50	Max 0.005	Max 0.18	0.02- 0.08	Max 0.05	Max 0.05	Max 0.03

Grade

TAL

NVA420

NVD420

NVE420

(Z35)

0.10- 0.50

Max 1.70

Max 0.025

Max 0.50

Max 0.005

Max 0.18

0.02- 0.08

Max 0.05

Max 0.03

3.2 Carbon equivalent (CEq)

Carbon equivalent shall be not more than 0.43 for plates of NVE420-Z35-Z35.

Carbon equivalent shall be calculated as follows:

CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15 (%)

3.3 Tensile properties

The tensile properties of NVE420-Z35 shall meet the requirement as table 2.

Table 2 Tensile properties

Grade	Direction Transverse Akv, J		Yield strength MPa	Tensile strength MPa	Elongation %
NVA420	0C	Min 28J	Min 420	530-680	Min 18
NVD420	-20C	Min 28J	Min 420	530-680	Min 18
NVE420-Z35	-40C	Min 28J	Min 420	530-680	Min 18

3.4 Impact properties

Impact test in the longitudinal and transverse for plates of NVE420-Z35 shall meet the requirements per table 3.

Table 3 Impact properties

Charpy-V Impact test
Test temp.	Test direction	Average impact energy
0,-20,-40 Celsius degree	Transverse	Min 28J

3.5 Grain size

Grain size for plates shall be according to DNV RULES.

3.6 Surface quality

The surface quality of plates shall be accordance with DNV RULES.

3.7 Ultrasonic inspection

Plates shall be ultrasonic inspected per EN10160,S1E1.

3.8 Direction of Thickness

Through thickness tension testing shall be done according to EN10164 (%Re ≥ 35)

3.9 Test 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 menthod
1	Chemical composition (Ladle analysis)	1 (per heat treatment pc)	According to DNV RULES.	According to DNV RULES.
2	Tensile test	1 (per heat treatment pc)
3	Charpy-V impact test at -40C	3 (per heat treatment pc)
4	Grain size	1
5	Z35-Direction	1	EN10164	EN10164