Technical conditions for Conventional Island high pressure heater of SA387Gr12CL1 SA387Gr12CL1 manufacturer from China Gloria Steel

Technical conditions for Conventional Island high pressure heater of SA387Gr12CL1

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.: SA387Gr12CL1

Production Capacity: 3000~5000T

Delivery Date: 30 days

Means of Transport: Ocean

Packing: Standard seaworthy export p...

The technical conditions apply to plates of SA387Gr12CL1 with thickness range 10mm-120mm used for Sanmen nuclear power station (AP1000).

Technical conditions for Conventional Island high pressure heater of SA387Gr12CL1

1. Scope

The technical conditions apply to plates of SA387Gr12CL1 with thickness range 10mm-120mm used for Sanmen nuclear power station (AP1000).

2. Adopt standard:

ASME SA387/SA387M Specification for pressure vessel plates, alloy steel, Chromium-Molybdenum

ASME SA20/SA20M Standard Specification for General Requirements for Steel Plates for Pressure Vessels

ASME SA370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products

3. Dimension, Shape, Weight and Permissible Deviation

The dimension, shape, weight and permissible deviation shall meet the requirements of ASME SA20/SA20M.

The thickness toleration: -0.25mm/+3.5mm

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)

Thickness mm	C	Si	Mn	P	S	Cu	Cr	Mo	V	NB
Ladle analysis	0.05- 0.17	0.15- 0.40	0.40- 0.65	Max 0.030	Max 0.020	Max 0.20	0.80- 1.15	0.45- 0.60	Max 0.03	Max 0.02
Product analysis	0.04- 0.17	0.13- 0.45	0.35- 0.73	Max 0.030	Max 0.020	Max 0.20	0.74- 1.21	0.40- 0.65	Max 0.04	Max 0.02

Thickness

Ladle analysis

0.05- 0.17

0.15- 0.40

0.40- 0.65

Max 0.030

Max 0.020

Max 0.20

0.80- 1.15

0.45- 0.60

Max 0.03

Max 0.02

Product analysis

0.04- 0.17

0.13- 0.45

0.35- 0.73

Max 0.030

Max 0.020

Max 0.20

0.74- 1.21

0.40- 0.65

Max 0.04

Max 0.02

Note: Ladle analysis sampling per furnace and product analysis per each PC finished product.

4.2 Steel making process: EAF+LF/VD

4.3 Mechanical properties

The mechanical properties of SA387Gr12CL1 shall meet the requirement as table 2&3.

Table 2 Tensile properties

Yield strength MPa	Tensile strength MPa	Elongation %	Bend test D=3a
Min 230	380-550	Min 22	180C un-cracked

Yield strength MPa

Tensile strength MPa

Elongation %

Bend test

D=3a

Min 230

380-550

Min 22

180C un-cracked

4.4 Impact properties

Impact test in the longitudinal and transverse for plates of SA387Gr12CL1 shall meet the requirements per table 3.

Table 3 Impact properties

Charpy-V Impact test Test temp. Celsius degree	Transverse
Average impact energy
+20C	Min 31J

Charpy-V Impact test

Test temp.

Celsius degree

Transverse

Average impact energy

+20C

Min 31J

4.5 SWHT: Simulated Post-Weld Heat Treatment of Mechanical Test Coupons shall be prepared in 600+/-10 C with min.5 minute per each mm of thickness.

4.6 Surface quality

The surface quality of plates shall be accordance with ASTM A20/A20M.

4.7 Ultrasonic inspection

Plates shall be ultrasonic inspected per ASTM A578/A578M level C.

4.8 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

Test item	Quantity, Piece	Sampling method	Test method	Sampling conditions
Ladle analysis	1 (per furnace)	ASTM A20/A20M	ASME SA751	/
Tensile test	1 (per rolled pc)	ASTM A20/A20M	ASME SA370	SWHT
Charpy-V impact test at +20C	3 (per rolled pc)	ASTM A20/A20M	ASME SA370	SWHT
Product analysis	1 (per rolled pc)	ASTM A20/A20M	ASME SA370	+N
Ultrasonic test	Each product pc	ASTM A578/A578M		+N
High TEMP tensile test	Each product pc	ASTM A20/A20M	ASME SA370	SWHT