Technical conditions for plates of P265GH P265GH manufacturer from China Gloria Steel

Technical conditions for plates of P265GH

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.: P265GH

Production Capacity: 3000~5000T

Delivery Date: 30 days

Means of Transport: Ocean

Packing: Standard seaworthy export p...

The technical conditions apply to pressure vessel steel plates of P265GH with thickness not more than 250mm. (8mm-250mm).

Technical conditions for plates of P265GH

1. Scope

The technical conditions apply to pressure vessel steel plates of P265GH with thickness not more than 250mm. (8mm-250mm).

2. Adopt standard:

EN10028-2: 2003 Flat products made of steels for pressure purposes Part 2: Non-alloy and alloy steels with specified elevated temperature properties

EN10163-2:2004 Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections - Part 2: Plate and wide flats Class B.

3. Dimension, Shape, Weight and Permissible Deviation

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

4. Technical conditions

4.1 Chemical 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	Cr	Cu	Mo	Nb	Ti	V	N
Max 0.20	Max 0.40	0.80- 1.40	Max 0.025	Max 0.015	Min 0.020	Max 0.30	Max 0.30	Max 0.08	Max 0.020	Max 0.030	Max 0.020	Max 0.012

Alt

Max 0.20

Max 0.40

0.80- 1.40

Max 0.025

Max 0.015

Min 0.020

Max 0.30

Max 0.08

Max 0.020

Max 0.030

Max 0.020

Max 0.012

4.2 Carbon equivalent (CEq)

Carbon equivalent shall be not more than 0.43 for plates of P265GH.

Carbon equivalent shall be calculated as follows:

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

4.3 Mechanical properties

The mechanical properties of P265GH shall meet the requirement as table 2.

Table 2 Tensile properties

Thickness mm	Yield strength MPa	Tensile strength MPa	0C Akv (J)	Elongation %
8-60	Min 265	410-530	Min 34J	Min 22
60-100	Min 245	410-530	Min 34J	Min 22
100-150	Min 215	400-530	Min 34J	Min 22
150-250	Min 200	390-530	Min 34J	Min 22

4.4 SWHT: The optimized SWHT technology is as follows: heating at 610℃+/-10℃ for 7h, then followed by cooling in furnace to 400℃, then for air cooling.

4.5 Minimum values for the proof strength Rp0.2 at elevated temperatures shall meet the requirements per table 4.

Table 4 High temp Tensile properties

Test TEMP	Thickness mm	300℃	350℃	400℃
Rp0.2 Min (MPa)	8-60	173	160	150
	61-100	160	148	139
	101-150	140	130	122
	151-250	130	121	114

4.6 Ultrasonic inspection

Plates shall be ultrasonic inspected per EN10160-1999 S2E2.

4.7 Test method and inspection rules

Test items, sampling quantity, sampling method and test method shall conform to table 5.

Table 5 Test items for plates

No.	Test item	Quantity, Piece	Sampling method	Test method
1	Chemical composition (Ladle analysis)	1 (per batch furnace number)	EN10028-2	EN10028-2
2	Tensile test	1 (Rolled pc)	EN10028-1	EN10028-1
3	Impact test at 0C	1 (Rolled pc)	EN10028-1	EN10028-1
4	High temperature tensile test	3 (Rolled pc)	EN10164	EN10164
5	Bend test	1 (Rolled pc)	EN10028-1	EN10028-1
6	UT	1 (Product pc)		EN10160