Technical conditions for plates of SA516Gr70N HIC manufacturer from China Gloria Steel

Technical conditions for plates of SA516Gr70N HIC

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


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Product Detail

Means of Transport: Ocean

Packing: Standard seaworthy export p...

Production Capacity: 3000~5000T

Delivery Date: 30 days

The technical conditions apply to plates of SA516Gr70N HIC with thickness range 8mm-100mm.

Technical conditions for plates of SA516Gr70N HIC

1. Scope

The technical conditions apply to plates of SA516Gr70N HIC with thickness range 8mm-100mm.

2. Adopt standard:

ASME SA516/SA516M-10 Standard Specification for Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature Service

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.

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)

Grade	Thickness mm	C	Si	Mn	P	S	Alt	Nb	O	Ca
SA516Gr70 HIC	8-100	Max 0.20	Max 0.35	0.85- 1.20	Max 0.010	Max 0.002	Less 0.045	Max 0.020	Less 0.002	Less 0.005

Grade

Thickness

Alt

SA516Gr70

HIC

8-100

Max 0.20

Max 0.35

0.85- 1.20

Max 0.010

Max 0.002

Less 0.045

Max 0.020

Less 0.002

Less 0.005

Grade	Thickness mm	B	V	Cr	Mo	Ti	Ni	Ni+Cu	CEq
SA516Gr70 HIC	8-100	Less 0.0005	Less 0.005	Less 0.25	Less 0.25	Less 0.020	Less 0.010	Max 0.15	Max 0.42

Grade

Thickness

Ni+Cu

CEq

SA516Gr70

HIC

8-100

Less 0.0005

Less 0.005

Less 0.25

Less 0.020

Less 0.010

Max 0.15

Max 0.42

Carbon equivalent shall be calculated as follows:

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

4.2 Steel making process: EAF(+Ca)+LF/VD

4.3 Tensile properties

The SWHT properties of SA516Gr70N HIC shall meet the requirement as table 2&3.

Table 2 Tensile properties

Thickness mm	Yield strength MPa	Tensile strength MPa	Elongation %
8-100	Min 260	485-620	Min 21

4.4 Impact properties

Impact test in the longitudinal and transverse for plates of SA516Gr70N HIC shall meet the requirements per table 3.

Table 3 Impact properties

Charpy-V Impact test Test temp. Celsius degree	Longitudinal
Average impact energy
-46C	Min 27J

Charpy-V Impact test

Test temp.

Celsius degree

Longitudinal

Average impact energy

-46C

Min 27J

4.5 Hardness: Max 22HRC

4.6 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.

4.7 NACE MR0175/ISO 15156-2 / Annex B.5 / Test method NACE TM0284 in solution-A sour service (CLR =< 5% & CTR =<5% & CSR =< 2% shall be reported)

4.8 For T>=25 mm through thickness tension testing shall be done according to SA770(%Re>=35)

4.9 Surface quality

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

4.10 Ultrasonic inspection

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

4.11 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	ASTM A751	/
Tensile test	1 (per rolled pc)	ASTM A20/A20M	ASTM A370	SWHT
Charpy-V impact test at -40C	3 (per rolled pc)	ASTM A20/A20M	ASTM A370
Hardness	1 (per rolled pc)	GB/T2975	GB/T 230.1
Thickness tension	2 (per rolled pc)	SA770	SA770	+N
Ultrasonic test	Each product pc	ASTM A578/A578M		+N
HIC test	See 5.HIC	NACE TM0284	NACE TM0284	SWHT