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

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

4. Package, marking and certificate
Package, marking and certificate shall conform to DNV RULES.
5. The third party inspection
The chemical composition, tensile test and Charpy -V impact test for plates of NVE420-Z35 shall be witnessed by surveyor of DNV.
6. Delivery conditions
The delivery conditions for plates of NVE420-Z35 shall be Quenching+ Tempering.
7. Other requirements
The other requirements for plates of NVE420-Z35 shall be accordance with DNV RULES..

More technical details and the MTC require please visit our web site: www.gloriasteel.com  or contact us.

Sales Contact:

Sale engineer: Mr.Toby
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We're Gloria Steel from China and focusing on Iranian Oil and Gas fields services. Rely on our experienced processed team and very refined apparatus to supply excellent product and our service. All materials come from " the approved vendor list of NIOC and NIGC".
We are main agent for sales and supplying service for below mills:
Wuyang steel's High pressure heavy steel plate: ASTM A516Gr70N+S3+S5, A335, A514, A517, P460NH, P355NL2, SA387Gr11CL2+HIC, EN10028-4, EN10025-6, and so on. Thickness 8-780mm*width 1500-4020*Length

TISCO's Heavy stainless steel plate/bar/coils/pipes: ASTM A240 grade 304,304L,316,316L, S31803, S32760, 321H, 347,310S,309S, 904L, Super 13Cr, 28Cr
Thickness 0.20mm-120mm*1000-3000*Length

BFTI's Cold rolled or Hot Rolled Titanium sheet/plate:
ASTM B265-2010, B122, B171, B466 , ASTM F136, AMS 4928
Grade Gr1, Gr2, Gr3, Gr4, Gr5, Gr7, Gr9, Gr11,Gr12,Gr19,Gr23 Thickness 0.3mm-60mm*Width 400-3000mm*Length

SZSSP's Nickel-base alloy G3 tubing and casing: ISO 13680  28Cr, 27-31-4, 110KSI; Super-duplex SMLS stainless steel pipe UNS S32750,UNS S32760,UNS N08028, UNS N08535 all size range or with Premium Thread such as NEW VAM, VAM TOP HC, VAM MUST, Hunting Seal-Lock HT, equivalence for the needs of Oil and Gas Projects in Iran.

If you have any inquires, please don't hesitate to contact us. (Even though one piece of Standard Size, such as 2000*6000mm, we also can supply for you very competitive prices and soonest delivery time.

Looking forward to cooperation with you in near future.