Technical conditions for plates of SA516Gr60N HIC

1. Scope
The technical conditions apply to plates of SA516Gr60N HIC with thickness range 8mm-76mm.
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
SA516Gr60
HIC 8-12.5 Max 0.20 Max 0.35 0.60- 0.95 Max 0.010 Max 0.002 Less 0.045 Max 0.020 Less 0.002 Less 0.005
 12.6-76 Max 0.20 Max 0.35 0.85- 0.99 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
SA516Gr60
HIC 8-12.5 Less 0.0005 Less 0.005 Less 0.25 Less 0.25 Less 0.020 Less 0.010 Max 0.15 Max 0.42
 12.6-76 Less 0.0005 Less 0.005 Less 0.25 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 SA516Gr60N HIC shall meet the requirement as table 2&3.
Table 2 Tensile properties
Thickness mm Yield strength MPa Tensile strength MPa Elongation %
8-76 Min 220 415-550 Min 25

4.4 Impact properties
Impact test in the longitudinal and transverse for plates of SA516Gr60N 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

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 
HIC test See 5.HIC NACE TM0284 NACE TM0284 SWHT

5. HIC sampling method: Per heat number/ thickness/ heat treatment rules combine one group.
6. Package, marking and certificate
Package, marking and certificate shall conform to A20.
7. The third party inspection
The chemical composition, tensile test and Charpy -V impact test and HIC test for plates of SA516Gr60N HIC shall be witnessed by surveyor of IQI.
8. Delivery conditions
The delivery conditions for plates of SA516Gr60N HIC shall be Normalized.
9. Other requirements
The other requirements for plates of SA516Gr60N HIC shall be accordance with SA516/SA516M-2010.
MTC accordance with EN10204: 2004 3.1

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