SA516 Steel Boiler Plate
SA 516 (commonly known as ASME SA516/SA516M) is a premium carbon steel plate standard designed for pressure vessels operating at moderate and low temperatures. Grades 60, 65, and 70 are the most prevalent, with Grade 70 standing out due to its exceptional strength (tensile strength ≥ 482 MPa), resistance to hydrogen sulfide (H2S) corrosion, and excellent weldability. These qualities make it a preferred material for pressure vessels and boilers in the petroleum, chemical, and power generation industries.
Key Features and Specifications:
Standard: American ASME standard (similar to ASTM A516).
Applications: Specifically engineered for welded pressure vessels operating in low and ambient temperature environments.
Grades:
SA516 Gr.60: Lower strength, good toughness.
SA516 Gr.65: Moderate strength and toughness.
SA516 Gr.70: Highest strength (Tensile Strength: 482-620 MPa, Minimum Yield Strength: 260 MPa[1]), frequently utilized in the most demanding environments.
Delivery Condition: Usually delivered in a normalized condition to improve low-temperature impact toughness.
Typical Applications:
Processing vessels in the oil and gas industry.
Pressure pipelines and boilers in chemical processing plants.
Low-temperature storage tanks and vessels (e.g., liquefied gas storage tanks).
We can supply SA516Gr60, SA516Gr65, SA516Gr70 and other pressure vessel steel plates, if you have any purchasing requirements, please contact us!
SA516 GR70 MTC
SA516 Boiler Plate Steel chemical composition
| Elements | SA 516 Gr 60 (Grade 415) |
SA 516 Gr 65 (Grade 450) |
SA 516 Gr 70 (Grade 485) |
|---|---|---|---|
| Carbon, max Composition % | |||
| 1/2 in. (12.5 mm) and under | 0.21 | 0.24 | 0.27 |
| Over 1/2 to 2 in. (12.5 to 50 mm), incl | 0.23 | 0.26 | 0.28 |
| Over 2 to 4 in. (50 to 100 mm), incl | 0.25 | 0.28 | 0.30 |
| Over 4 to 8 in. (100 to 200 mm), incl | 0.27 | 0.29 | 0.31 |
| Over 8 in. (200 mm) | 0.27 | 0.29 | 0.31 |
| Manganese, max | |||
| 1/2 (12.5) and under: | |||
| Heat analysis | 0.60-0.90 | 0.85-1.20 | 0.85-1.20 |
| Product analysis | 0.55-0.98 | 0.79-1.30 | 0.79-1.30 |
| Over 1/2 in (12.5) | |||
| Heat analysis | 0.85-1.20 | 0.85-1.20 | 0.85-1.20 |
| Product analysis | 0.79-1.30 | 0.79-1.30 | 0.79-1.30 |
| Phosphorus, max | 0.025 | 0.025 | 0.025 |
| Sulfur, max | 0.025 | 0.025 | 0.025 |
| Silicon | |||
| Heat analysis | 0.15-0.40 | 0.15-0.40 | 0.15-0.40 |
| Product analysis | 0.13-0.45 | 0.13-0.45 | 0.13-0.45 |
sA516 boiler quality plates mechanical property
| SA 516 Gr 60 (Grade 415) |
SA 516 Gr 65 (Grade 450) |
SA 516 Gr 70 (Grade 485) |
|
|---|---|---|---|
| Tensile strength, ksi (MPa) | 60-80(415-550) | 65-85(450-585) | 70-90(485-620) |
| Yield strength, min.B ksi (MPa) | 32(220) | 35(240) | 38(260) |
| Elongation in 8 in. (200 mm), min, % | 21 | 19 | 17 |
| Elongation in 2 in. (50 mm), min, % | 25 | 23 | 21 |
SA516 boiler steel plate Stock sizes
| GRADE | GAUGE (INCHES) | WIDTH (INCHES) | LENGTH (INCHES) |
|---|---|---|---|
| A516 / SA516 | 0.1875 | 96 | 240/480 |
| A516 / SA516 | 0.2500 | 96/120 | 240/480 |
| A516 / SA516 | 0.3125 | 96/120 | 240/480 |
| A516 / SA516 | 0.3750 | 96/120 | 240/480 |
| A516 / SA516 | 0.5000 | 96/120 | 240/480 |
| A516 / SA516 | 0.6250 | 96/120 | 240/480 |
| A516 / SA516 | 0.7500 | 96/120 | 240/480 |
| A516 / SA516 | 0.8750 | 96/120 | 240/480 |
| A516 / SA516 | 1.0000 | 96/120 | 240/480 |
| A516 / SA516 | 1.1250 | 96/120 | 240/480 |
| A516 / SA516 | 1.2500 | 96/120 | 240/480 |
| A516 / SA516 | 1.5000 | 96/120 | 240/480 |
| A516 / SA516 | 1.7500 | 96/120 | 240/480 |
| A516 / SA516 | 2.0000 | 96/120 | 240/480 |
| A516 / SA516 | 2.2500 | 96/120 | 240/480 |
| A516 / SA516 | 2.5000 | 96/120 | 240/480 |
| A516 / SA516 | 2.7500 | 96/120 | 240/480 |
| A516 / SA516 | 3.0000 | 96/120 | 240/480 |
| A516 / SA516 | 3.2500 | 96/120 | 240 |
| A516 / SA516 | 3.5000 | 96/120 | 240 |
| A516 / SA516 | 3.7500 | 96/120 | 240 |
| A516 / SA516 | 4.0000 | 96/120 | 240 |
| A516 / SA516 | 5.0000 | 96 | 240 |
| A516 / SA516 | 6.0000 | 96 | 240 |
SA516 boiler quality plates Products Details
SA516Gr60 belongs to the carbon steel plate for medium and low temperature pressure vessels, which is widely used in petroleum, chemical, power station, boiler and other industries for making reactors, heat exchangers, separators, spherical tanks, gas tanks, liquefied natural gas tanks, nuclear power reactors, pressure shells, boiler ladles, liquefied petroleum gas cylinders, high-pressure water pipes of hydropower stations, water turbine turbine shells and other equipments and components.
SA516Gr65 belongs to the American standard boiler and pressure vessel steel plate, SA516Gr65 implementation standard for ASME special technical conditions. SA516Gr65 not only has its own very high strength and a certain degree of toughness, but also comes with wear-resistant properties, fatigue resistance, corrosion resistance, impact resistance, and weld easy to process performance.
SA516Gr70 belongs to American Standard boiler pressure vessel steel plate, SA516Gr70 index standard for ASTM ASME EN10028-2 special technical conditions. SA516Gr70 itself not only has very high strength and also has very good toughness, wear resistance, fatigue resistance, impact resistance, welding easy processing performance and cold forming properties, commonly used in petrochemical container manufacturing industry, for example; pressure vessel manufacturing, expansion joints, reactors, heat exchangers, petrochemical equipment, petroleum machinery, headers, boilers, power station equipment, reactors, ball tanks, nitrogen tanks, gas cylinders, Liquefied gas tanks and other applications are quite common.
Relying on many first-class equipment, such as CNC Shearing machine, Press Brake machine, Straightening machine, Roll Bending machine, Flat Bar Machine, Deburring machine etc, GNEE STEEL could provide various semi-productsand extensive forming services to customers.
GNEE STEEL PROCESSING
1.CTL & SL SERVICE (141 SETS)
Currently, GNEE STEEL has imported manyadvanced CTL/SL equipment from Italy and Korea and could provide customized CTL/SL services from cold rolled stainless steel and carbon steel to hot rolled stainless steel and carbon steel as well as strips and ultra-wide sheet.
CTL FACILITIES
Max Length:16500mm
Max Width:2200mm
Max Thickness:25.4mm
Max Yield Strength:1500Mpa
SL FACILITIES
Max Width:2200mm
Max Thickness:18mm
Max slit Quantity:31
Max Yield Strength:1200Mpa
2.CUTTING SERVICE
GNEE STEEL imported lots of advanced cutting machines from Germany, Sweden, America and Japan, including plasmas cutting machine, water jet cutting machine, laser cutting machine, flame cutting machine and saw machine. In order to meet customers' diversified needs, GNEE STEEL also adopts nest working multi-cutting methods and intensive production to improve production capacity and save costs for the customers.
Laser Cutting Machine
Max Cutting Length:40,000mm
Max Width:4,600mm
Max Thickness:100mm
Flame Cutting Machine
Max Cutting Length:40,000mm
Max Width:8,000mm
Max Thickness:500mm
Plasmas Cutting Machine
Max Cutting Length:30,000mm
Max Width:5,000mm
Max Thickness:100mm
Water-jet Cutting
Max Cutting Length:12,000mm
Max Width:4,010mm
Max Thickness:250mm
3.FORMING SERVICE
Steel Plate Roll Bending
Maximum Rolling Thickness: up to 200mm
Maximum Width: 4200mm
Automatic Bending Machine-Press Brake
Max Bending Capability:3000Ton
Max Bending Length:15,000mm
Expert in Bending High-Strength & Wear-Resistant Steels
Punching Machine
Max Width:3,070mm
Max Thickness:8mm
Max Pressure:250t
BEVELING SERVICE
GNEE STEEL beveling platform has edge milling machine, edge planer, flame / plasma groove cutting machine, flame groove cutting robot, desktop chamfering machine, gantry planerand other advanced equipment to provide customers with parts prefabrication services,daily processing of V-type, Y-type, X-type and U-type grooves, and guarantee subsequent processes such as welding and assembly of products.
Milling：
Max Cutting Length:18,000mm
Max Width:4500mm
Max Thickness:120mm
Beveling:
Max Length:16,000mm
Max Thickness:80mm
MACHINING SERVICE
GNEE STEEL owns CNC Portal-type Boring and Milling machine,CNC Floor-type Boring and Milling machine, Vertical Precision 5-axis Milling Machine, Portal-type Planer, Vertical Lathe, Cylindical Grinding machine, Hydraulic Planer and CNC Lathe and could provide fine machining of large spare parts and structural parts for customers.
Gantry Type Boring & Milling Maching Center
Max Length:48000mm
Max Width:12500mm
Max Height:8000mm
Max Diameter:10500mm
Deep-hole Drilling Equipment
Max Driling Depth:1,100mm
Max Bore Diameter:φ80mm
Max Diametar:φ4,500mm
MMulti-hole Drilling Equipment
Max Length:13,000mm
Max Width:10,000mm
Max Bore Diameter:φ105mm
Max Drilling Depth:250mm
Floor Boring And Milling Machine
Max Length:24,000mm
Max Height:8,000mm
Turntable Dimensions:9x5m
Vertical Lathe
Max Height:6,000mm
Max Diametar:φ22,00mm
Automated Edge Milling Machine
The Automated Edge Milling Machine is a leading product in heavy-duty milling equipment. It is primarily used for weld groove preparation (beveling) on large-format plates made of stainless steel, carbon steel, and special steel grades. It can process plates with a maximum thickness of up to 90mm, a length of 16 meters, and a width of 4 meters.
It is equipped with dual milling units and a fully automatic milling cutter head changing system, enabling automated 4-edge beveling. Its standout feature is the profiling technology used when milling wavy plates and irregularly shaped products, which ensures absolute consistency of the groove after milling.
Utilizing specially designed milling cutter heads, it can execute highly difficult and complex groove profiles in a single pass.
Materials: Plain carbon steel, pressure vessel steel, wear-resistant steel, high-strength steel, stainless steel, nickel-based alloys, etc.
Width: 1200 - 4200 mm
Length: 5800 - 16000 mm
Thickness: 5 - 90 mm
Weight: Up to 35 tons
This edge milling machine is the world's premier automated bevel milling equipment. With its excellent structural design and advanced data algorithms, it achieves full automation from plate detection to the actual milling process, significantly improving processing efficiency while guaranteeing high precision.
- Processing Accuracy
Length accuracy: ±1mm when L < 10m; ±2mm when L > 10m;
Width accuracy: ±1mm;
Diagonal accuracy: ±2mm;
Root face accuracy (blunt edge): ±1mm for Y-grooves; +0.5mm for X-grooves.
- Processing Efficiency
The processing efficiency is more than 10 times that of conventional edge milling or edge planing equipment.
HEAT TREATMENT
Heat Treatment Furnace
Max Furnace Size:36x12x13.5m
Max Rated Temperature:1100℃
Max Loading Capacity:800t
Heat Treatment of Pressure Vessels
Heat Treatment of Mining Equipment
Heat Treatment of Tube Sheet
Heat Treatment of Pressure Vessel Head
Case : Steel Plates Supply for 100,000m³ Full Containment Ammonia Storage Tank Project
GNEE STEEL is currently participating in the procurement phase of a 100,000m³ full containment ammonia storage tank project, supplying high-quality steel plates for critical tank components. Due to the corrosive nature of ammonia and the risk of Ammonia Stress Corrosion Cracking (SCC), the project requires strict metallurgical control of materials according to EN 10028-3 standards.
One of the most important technical requirements of this project is the strict limitation of the actual Yield Strength (Re) for all NL2 grade materials. To prevent SCC risks in ammonia storage environments, the actual yield strength must not exceed 390 MPa, regardless of the nominal values specified in the standard or plate thickness ranges. This requirement places higher demands on steelmaking process control, heat treatment stability, and material testing.
Raw high-strength steel plates ready for the 100,000 m³ full containment ammonia storage tank production
Project Materials and Technical Requirements
The project mainly uses P355NL2 and P275NL2 normalized pressure vessel steel plates, which are widely applied in low-temperature storage tanks due to their excellent toughness and weldability.
Key technical specifications include:
- Material grades: P355NL2 and P275NL2 (Normalized)
- Yield strength: Standard minimum / Maximum limited to 390 MPa
- Hardness: ≤ 225 HBW in base material
- Impact testing: Charpy-V notch test at -50°C, minimum 27J
- Certification: EN 10204 3.1 certificate, with optional 3.2 certification
These strict requirements ensure that the steel plates maintain stable mechanical properties and high resistance to ammonia-induced stress corrosion during long-term operation.
Precision rolling and forming of steel plates into curved sections for the 100,000 m³ ammonia storage tank.
Project Plate Quantities and Thickness Distribution
The total steel demand for this ammonia storage tank project is several thousand tons, mainly distributed across different tank sections:
P355NL2 – Inner & Outer Tank Shell Plates
- Lower shell courses: 50 mm thickness – approx. 2,000 tons
- Middle shell courses: 25 mm thickness – approx. 1,400 tons
- Upper shell courses: 10 mm thickness – approx. 500 tons
P275NL2 – Tank Bottom Plates
- Thickness: 10–15 mm – approx. 750 tons
P275NL2 – Suspended Roof Structure
- Thickness: 5–8 mm – approx. 180 tons
S275JR – Outer Roof (Ambient Structure)
- Thickness: 10 mm – approx. 450 tons
To improve tank fabrication efficiency and reduce circumferential welds, the project also requires wide steel plates to minimize welding joints, which helps reduce the potential risk of SCC in ammonia service conditions.
Formed steel segments wrapped and racked for protection, ready for 100,000 m³ ammonia storage tank assembly.
GNEE STEEL provides high-precision steel plate rolling and cylinder fabrication solutions for tank manufacturers worldwide. Send us your plate specifications or fabrication drawings for a fast quotation.
| TYPE | GRADE | SPECIFICATIONS |
| Carbon Steel / Low Alloy Coil | Q235A/B/C/D/Q355B(Q345B)/C/D/E/SS400/SAPH400-C/ASTMA283Grade C |
0.7~2.0*1250/1500mm*C 2.3~19.5*1250/1500/1800/2000mm*C |
| Medium Heavy Plate | Q235B/Q355B(Q345B)/C/D/E | 6.0-200x150mm-4000mmxL |
| Vessel Plate |
Q245R/Q345R/HP295/SA516MGR485/SA516GR70/P355NL2/P275NL2/ S275JR//SPV490/ASTM A537 Class 1/Class 2 |
2.5-120x1500mm-3000mmxL |
| High Strength Steel |
510L/610L/700L/750L/BS600MCK4/BS700MCK2/BS700MCK4/ BS960E/BWELDY700QL2/L4/BWELDY960QL4/HG60D/70D/785D/ Q460D/Q550D/690D/690E/TQ600MCD/TQ700MCD/S700MCD/ WYS600/700/STRENX700MCE/Q490E/Q490D |
1.2-60x 1500mm-2500mmxL |
| Patterned Steel | HQ235A|B | 1.2-60x 1500mm-2500mmxL |
| Wear-resistance Steel |
NM360/400/450/500/NM300TP/400TP/450TP/ ABREX400/450/500/B-HARD450XKY/ CREUSABRO4800/8000/EH C400LE/450LE/500LE/ |
3.0-50x1250mm-3300mmxL |
| Cold Rolled Coil | DC01/RECC/REDT/SPCC/ST12 | 0.5-3.0x1250mm-1500mmxC |
| Galvanized Plate | DC51D+AZ/DC51D+Z/DX51D+Z/SGH340+Z275/Z275/Z120/S350GD+ZM275 | 0.45-3.0x1250mm-1500mmxC |
| Pickled Coil | DD11/SPHC | 2.0-6.0x1500xC |
Stainless Steel Material and Surface Specifications
| TYPE | GRADE | THICKNESS | SURFACE |
| Austenitic | 304/304H/304L/304J1 | 0.25-150mm | 2B/BA/NO.4/8K/SB/HL/NO.1 |
| Austenitic | 321 | 0.4-80mm | 2B/BA/NO.4/8K/SB/HL/NO.1 |
| Austenitic | 316/316L/317L/316Ti | 0.3-80mm | 2B/BA/NO.4/8K/SB/HL/NO.1 |
| Austenitic | 201(J1/J2/J5) | 0.35-12mm | 2B/NO.1/1D |
| Ferrite | 430 | 0.4-3.0mm | 2B/BA/NO.4/8K/SB/HL |
| Ultra Pure Ferrite | 443 | 0.4-2.0mm | 2B |
| Ultra Pure Ferrite | 436L/439/444/441 | 0.5-3.0mm | 2B/2D |
Special Steel / Nickel Base Alloy
| TYPE | GRADE | GRADE (ASTM) | GRADE (EN) | THICKNESS |
| Heat-resistant Steel | 309S | S30908 | 1.4833 | 0.5-40mm |
| Heat-resistant Steel | 310S | S31008 | 1.4845 | 0.5-40mm |
| Duplex Stainless Steel | 2101 | S32101 | 1.4162 | 1.5-50mm |
| Duplex Stainless Steel | 2304 | S32304 | 1.4362 | 3.0-50mm |
| Duplex Stainless Steel | 2205 | S32205/S31803 | 1.4462 | 0.5-60mm |
| Duplex Stainless Steel | 2507 | S32750 | 1.4410 | 1.0-60mm |
| Super Austenitic-Steel | 904L | N08904 | 1.4539 | 0.6-50mm |
| Super Austenitic-Steel | 254SMO | S31254 | 1.4547 | 0.5-50mm |
| Super Austenitic-Steel | 1.4529 | N08926 | 1.4529 | 0.5-50mm |
| Super Austenitic-Steel | AL-6XN | N08367 | 1.4478 | 0.5-50mm |
| Nickel Base Alloy | Alloy 31 | N08031 | 1.4562 | 1.0-50mm |
| Nickel Base Alloy | 800 | N08800 | 1.4876 | 0.8-50mm |
| Nickel Base Alloy | 800H | N08810 | 1.4958 | 0.8-50mm |
| Nickel Base Alloy | 800HT | N08811 | 1.4959 | 0.8-50mm |
| Nickel Base Alloy | Alloy 28 | N08028 | 1.4563 | 1.0-20mm |
| Nickel Base Alloy | Alloy 20 | N08020 | 2.4660 | 1.0-20mm |
| Nickel Base Alloy | 825 | N08825 | 2.4858 | 0.8-40mm |
| Nickel Base Alloy | C276 | N10276 | 2.4819 | 0.5-50mm |
| Nickel Base Alloy | C22 | N06022 | 2.4602 | 1.0-50mm |
| Nickel Base Alloy | 625 | N06625 | 2.4856 | 0.8-20mm |
| Nickel Base Alloy | 400 | N04400 | 2.4360 | 1.0-20mm |
| Nickel Base Alloy | 600 | N06600 | 2.4816 | 1.0-50mm |
| Nickel Base Alloy | Pure Ni 201 | N02201 | 2.4061 | 0.5-20mm |
| Titanium | TA1 | Gr.1 | Class 1 | 0.5-50mm |
| Titanium | TA2 | Gr.2 | Class 2 | 0.5-50mm |
pressure vessel quality steel product image
GNEE Group team photo
GNEE group customer visit
GNEE Group steel exhibitions
We have professional online service personnel. If you have any questions about SA516 steel boiler plate, please send us an inquiry and we will reply to you within one working day.
Hot Tags: sa516 steel boiler plate, China sa516 steel boiler plate manufacturers, suppliers, factory, Pressure Vessel Plate, Boiler Steel Plate, welding boiler plate steel, A516Gr55 A516Gr60 Vessel Plate, A537 steel, ASTM A516 Grade 60 Boiler Plate Steel
