ASTM Steel Grades are steel plates that meet the exacting standards for specific grades of steel developed by the American Society for Testing and Materials.

Sunny Steel supply Plate to more than ten ASTM Standards. Many of the Standards define multiple grades of steel plate. The Tensile Strength and Elongation of the ASTM Steel Plates are plotted on the graph. The grades are discussed in detail to the right.

ASTM A283

ASTM A283 plate is a low carbon steel that is strong and formable.

It is easy to machine and fabricate and can be securely welded by all welding methods.

It is used in riveted, bolted, and welded construction of bridges and buildings, and for buildings, including pre-fabricated buildings, warehouses, and industrial and commercial structures

SPECIFICATIONS

• Strength
  Yield Strength ksi (MPa), Tensile Strength ksi (MPa): Strong, 65 (380-550)
  For higher strength and lower weight, consider High-strength, Low-alloy
• Formability: % Elongation: Better, 23-25%
  For better formability consider Drawing Steel
• Joining – Very Good
  The cheapest and easiest methods can be used: shielded metal arc welding (SMAW, or stick welding), gas metal arc welding (GMAW, or MIG welding), and oxyacetylene welding. A283 steel is also commonly bolted and riveted for buildings and other structures.
• Corrosion Resistance – Good
  Galvanized ASTM 283 will rust more slowly. For longer life in harsh chemical conditions, consider Galvanized or Coated Steel
• Chemistry – A283 is a ‘plain’ steel without expensive alloying elements.
• Cost – Relatively low.
  Good when thinner, stronger, or more formable steels will not add value.

ASTM A36

ASTM A36 plate is a common grade of low carbon steel with good strength and good formability. It is easy to machine, form, drill, machine, punch, and shear.

It has many uses including ships, buildings, and bridges.

It is used in riveted, bolted, and welded construction of bridges and buildings, including prefabricated buildings, warehouses, and commercial structures

SPECIFICATIONS

• Strength, Yield Strength ksi (MPa), Tensile Strength ksi (MPa): Strong, 70 (480)
  For higher strength and lower weight, consider High-strength, Low-alloy
• Formability: % Elongation: Basic, 20
  For better formability consider Drawing Steel
• Joining – Very Good: 10/10
  The cheapest and easiest methods can be used: shielded metal arc welding (SMAW, or stick welding), gas metal arc welding (GMAW, or MIG welding), and oxyacetylene welding. A36 steel is also commonly bolted and riveted for buildings and other structures.
• Corrosion Resistance – Good
  A36 can be galvanized to slow rusting. For longer life in harsh chemical conditions, consider Galvanized or Coated Steel
• Chemistry – A ‘plain’ steel without expensive alloying elements.
• Cost – Relatively low.
  Good when thinner, stronger, or more formable steels will not add value.

ASTM A572

ASTM A572 is a High-Strength Low-Alloy, Columbium-Vanadium Structural Steel.

There are five grades of high-strength low-alloy structural steel shapes, plates, sheet piling, and bars.

• Grades 42 [290], 50 [345], and 55 [380] are best for riveted, bolted, or welded structures.
• Grades 60 [415] and 65 [450] are best for riveted or bolted construction of bridges, or for riveted, bolted, or welded construction in other uses.

SPECIFICATIONS

• Strength, Yield Strength ksi (MPa), Tensile Strength ksi (MPa): Strong, 60-80 (415-550)
  For higher strength and lower weight, consider Advanced High-strength Steels
• Formability: % Elongation: Basic, 17-24%
  For better formability consider Drawing Steel
• Joining – Very Good: 10/10
  As a result, the most common welding methods can be used. A572 steel is also commonly bolted and riveted in structures.
• Corrosion Resistance – Good
  Can be galvanized to slow rusting. For longer life in harsh chemical conditions, consider Galvanized or Coated Steel
• Chemistry – Alloyed with small amounts of Columbium and Vanadium
• Cost – Higher.
  Good when thinner or stronger steels will add value.

ASTM A514

ASTM A514 Steel Plate has a high yield strength and good weldability. It is quenched and tempered carbon-alloy steel great for use in welded bridges and structures. It is typically used when abrasion resistance and high impact properties are required.

ASTM A514 Steel Plate mainly meant for use in welded bridges and other structures, as well as for construction and mining equipment, hauling and lifting devices, bucket components and many other high impact, abrasion-resistant uses.

GRADES:
Structural and Pressure Vessel Quality Plate available in eight grades:

• Grade A
• Grade B
• Grade E
• Grade F
• Grade H
• Grade P
• Grade Q
• Grade S.

These grades have increased strength, toughness, corrosion resistance, and impact-abrasion resistance.

SPECIFICATIONS

• Strength, Yield Strength ksi (MPa), Tensile Strength ksi (MPa): Stronger, 100 (690-895)
  For higher strength and lower weight, consider Advanced High-strength Steels
• Formability: % Elongation: Basic, 16-18%
  For better formability consider Drawing Steel
• Joining – Fair
  Design and welding must account for stresses
• Corrosion Resistance – Very Good
  Can be galvanized to slow corrosion. For longer life in harsh chemical conditions, consider Galvanized or Coated Steel
• Chemistry – Alloyed with Chromium, Nickel, and Molybdenum
• Cost – Higher.
  Good when thinner or stronger steels will add value.

ASTM A516

ASTM A516 Carbon steel plates for pressure vessels at moderate and lower temperature service.

Meant mainly for service in welded pressure vessels where improved notch toughness is required.

We will be glad to help you select the exact grade for your needs.

The ASTM A516 specification is the Standard Specification for Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature Service for plates used in pressure vessel applications where excellent notch toughness is required. Four grades having minimum Tensile Strengths ranging of 55 ksi to 70 ksi are available.

GRADES:

• ASTM A516 Grade 55
• ASTM A516 Grade 60
• ASTM A516 Grade 65
• ASTM A516 Grade 70

SPECIFICATIONS

• Strength, Yield Strength ksi (MPa), Tensile Strength ksi (MPa): Strong, 70 (480)
  For higher strength and lower weight, consider Advanced High-strength Steels
• Formability: % Elongation: Basic, 20%
  For better formability consider Drawing Steel
• Joining – Fair
  Design and welding must account for stresses
• Corrosion Resistance – Good
  Galvanizing will slow corrosion. For longer life in harsh chemical conditions, consider Galvanized or Coated Steel
• Chemistry – Medium carbon, medium manganese, with silicon
• Cost – Higher.
  Good when thinner or stronger steels will add value.
• Plates under 1.5-inches thick are usually supplied in as-rolled condition. Plates over 1.5-inches thick are usually supplied in normalized condition.

ASTM A517

The ASTM A517 specification is the Standard Specification for Pressure Vessel Plates, Alloy Steel, High-Strength, Quenched and Tempered material used in the application of fusion welded boilers and pressure vessels. Under this specification, the plate thickness determines the grade selection and the mechanical properties. Plates 2.5″ in thickness and under, will have minimum Yield Strength of 100 ksi. Plates over 2.5″ in thickness will have a minimum Yield strength of 90 ksi. Typical applications include unfired vessels and tanks.

High-Strength, Quenched and Tempered alloy steel plates meant for use in fusion welded boilers and other pressure vessels.

GRADES:

• ASTM A517 Grade A
• ASTM A517 Grade B
• ASTM A517 Grade H
• ASTM A517 Grade S
• ASTM A517 Grade F
• ASTM A517 Grade E
• ASTM A517 Grade Q

SPECIFICATIONS

• Strength, Yield Strength ksi (MPa), Tensile Strength ksi (MPa): Strongest, 105-135 (725-930)
• Formability: % Elongation: Low, 14-16%
  For better formability consider Drawing Steel
• Joining – Fair
  Design and welding must account for stresses.
• Corrosion Resistance – Good
  Galvanizing will slow corrosion. For longer life in harsh chemical conditions, consider
• Galvanized or Coated Steel
  Chemistry – Low-medium carbon, low-medium manganese, with silicon
• Cost – Higher.
  Good when thinner or stronger steels will add value.

ASTM A588

The ASTM A588 specification is the Standard Specification for High-Strength Low-Alloy Structural Steel , up to 50 ksi Minimum Yield Point, with Atmospheric Corrosion Resistance for applications where strength and durability are needed. The required ASTM G101 Corrosion Resistance Index must be ≥ 6.0. In addition to the typical application in welded bridges and buildings, the specification is also commonly used in passenger rail cars.

High-Strength Low-Alloy Structural Steel, up to 50 ksi [345 MPa] Minimum Yield Point, with Atmospheric Corrosion Resistance for welded, riveted, or bolted construction.

Primarily meant for use in welded bridges and buildings where savings in weight or added durability are important.

We will be glad to help you select the exact grade for your needs.

GRADES:

• ASTM A588 Grade A
• ASTM A588 Grade B
• ASTM A588 Grade K

SPECIFICATIONS

• Strength, Yield Strength ksi (MPa), Tensile Strength ksi (MPa): Strongest, 105-135 (725-930)
• Formability: % Elongation: Basic, 21% For better formability consider Drawing Steel
• Joining – Fair
  Design and welding must account for stresses.
• Corrosion Resistance – Very Good
  When properly exposed to the atmosphere, this steel is appropriate for many uses unpainted. (The atmospheric corrosion resistance of this steel in most environments is significantly better than that of carbon structural steels with or without copper addition.)
• Chemistry – Medium carbon, medium manganese, silicon, copper, alloyed with Chromium, and Molybdenum
• Cost – Higher.
  Good when thinner or stronger steels will add value.

Mechanical Properties A588:

• Tensile:70 ksi min (4” and under), 67 ksi min (4”-5”) 63 ksi min (over 5”-8”)
• Yield:50 ksi min (4” and under), 46 ksi min (4”-5”) 42 ksi min (over 5”-8”)
• Elongation:16% min in 8” 19% min in 2” (for plates wider than 24”)

ASTM A656

A high-strength, low-alloy, hot-rolled structural steel plate utilized in structural applications where lighter weight and improved formability is critical.

Applications include:

• truck frames
• crane booms
• rail car components.

Hot-Rolled Structural Steel, High-Strength Low-Alloy Plate with Improved Formability.

Three types and five strength grades of high-strength low-alloy, hot rolled structural steel plate for use in truck frames, rackets, crane booms, rail cars, and similar uses.

These steels have improved formability. They are normally furnished in the as-rolled. We will be glad to help you select the exact grade for your needs.

Grades：

• ASTM A656 Grade 50
• ASTM A656 Grade 60
• ASTM A656 Grade 70
• ASTM A656 Grade 80
• ASTM A656 Grade 100

SPECIFICATIONS

• Strength, Yield Strength ksi (MPa), Tensile Strength ksi (MPa): Strong, 60-110 (415-760)
• Formability: % Elongation: Improved, 15-23%
• For better formability consider Drawing Steel
• Joining – Fair
  Design and welding must account for stresses.
• Corrosion Resistance – Good
  Galvanizing will slow corrosion. For longer life in harsh chemical conditions, consider Galvanized or Coated Steel
• Chemistry – Medium carbon, high manganese and silicon
• Cost – Higher.
  Good when thinner or stronger steels will add value.

The ASTM A656 specification is the Standard Specification for Hot-Rolled Structural Steel, High-Strength Low-Alloy Plate with Improved Formability for plates in applications where increased strength-to-weight ratios are required. Typical applications are construction equipment, crane booms, mobile man lifts, agricultural equipment, transport trailers, heavy vehicle frames and chassis, and rail cars.

Made to Grades 50, 60, 70 and 80— the grade designating the yield strength.

Mechanical Properties 656 Gr 50:
Tensile:60 ksi min
Yield:50 ksi min
Elongation:18% in 8” 21% in 2” (for plates wider than 24″)

Mechanical Properties 656 Gr 60:
Tensile:60 ksi min
Yield:60 ksi min
Elongation:14% in 8” 17% in 2” (for plates wider than 24″)

Mechanical Properties 656 Gr 70:
Tensile:80 ksi min
Yield:70 ksi min
Elongation:11% in 8” 14% in 2” (for plates wider than 24″)

Mechanical Properties 656 Gr 80:
Tensile:90 ksi min
Yield:80 ksi min
Elongation:9% in 8” 12% in 2” (for plates wider than 24″)

ASTM A709

The ASTM A709 is the Standard Specification for Structural Steel for Bridges and encompasses carbon, high-strength low-alloy, and quenched and tempered alloy steels used as structural plates in the construction of bridges. We offers the following five grades of A709; 36, 50, 50W, HPS 50W and HPS 70W. The three weather grades of 50W, HPS 50W, and HPS 70W have an ASTM G101 enhanced Atmospheric Corrosion Resistance Index of ≥6.0.

Overview:

Carbon and high-strength low-alloy steel structural shapes, and plates; quenched and tempered alloy steel, for structural plates meant for use in bridges.

• Common steel plate grade used primarily for the manufacture of bridges.
• Heavy thicknesses (3-inches or thicker) available at most Leeco Steel distribution centers.
• Available in standard grades:
  • ASTM A709 Grade 36
  • ASTM A709 Grade 50
  • ASTM A709 Grade 50S
  • ASTM A709 Grade QST 50
  • ASTM A709 Grade QST 50S
  • ASTM A709 Grade 50W
  • ASTM A709 Grade HPS 50W
  • ASTM A709 Grade 50CR
  • ASTM A709 Grade QST65
  • ASTM A709 Grade QST 70
  • ASTM A709 Grade HPS 70W
  • ASTM A709 Grade HPS 100W
• Available in high-performance grades: HPS 50W and HPS 70W.
• Dual ASTM and AASHTO spec certifications are available.
• Customers can specify A709 grades to meet Charpy test requirement for specific zones and climate.

SPECIFICATIONS

• Strength, Yield Strength ksi (MPa), Tensile Strength ksi (MPa): Stronger, 58-130 (400-900)
• Formability: % Elongation: Low for some grades, 14-21%
  For better formability consider Drawing Steel
• Joining – Fair
  Design and welding must account for stresses.
• Corrosion Resistance – Good
  Galvanizing will slow corrosion. For longer life in harsh chemical conditions, consider
• Galvanized or Coated Steel
  Chemistry – Low carbon, high manganese and silicon, alloyed with copper, Chromium, Nickel, and Molybdenum
• Cost – Higher.
  Good when thinner or stronger steels will add value.

ASTM A786

ASTM A786 (Standard Specification for Hot-Rolled Carbon, Low-Alloy, High-Strength Low-Alloy, and Alloy Steel Floor Plates) Steel Floor Plate, also known as Steel Diamond Plate or Steel Tread Plate has a raised diamond lug pattern that provides excellent skid resistance for a wide range of applications commonly used in stairs, walkways, ramps and entrances where ‘rough’ or ‘high-wear’ surfaces are preferred. The raised figure is produced by the final pass of a steel plate at hot rolling temperatures between one or more rolls – one roll having a pattern cut into it so that part of the metal on one surface of the plate is forced into the depressions on the pattern roll.

Types Includes

While it is generally provided as-rolled, floor plate also may be provided heat-treated. Rolled floor plates have raised figures at regular intervals on one surface of the plate.

• commercial quality steel floor plate
• A786 floor plate

SPECIFICATIONS

• Strength, Yield Strength ksi (MPa), Tensile Strength ksi (MPa): Basic 60 (400)
• Formability: % Elongation: Low for some grades, 14-21%
  For better formability consider Drawing Steel
• Joining – Fair
  Design and welding must account for stresses.
• Corrosion Resistance – Good
  Galvanizing will slow corrosion. For longer life in harsh chemical conditions, consider Galvanized or Coated Steel
• Chemistry – Low carbon, medium manganese, silicon, alloyed with copper, Chromium, Nickel, and Molybdenum
• Cost – Higher.
  Good when thinner or stronger steels will add value.

ASTM A710

These grades are not meant for use above 900°F [540°C].
Two grades, each with three classes, are provided as follows:

Grade and Class Condition

• Grade A, Class 1 as-rolled and precipitation heat treated. Mandatory notch toughness requirements are specified for Grade A, Class 1.
• Grade A, Class 2 normalized and precipitation heat treated
• Grade A, Class 3 quenched and precipitation heat treated
• Grade B, Class 1 as-rolled Grade B provides minimum yield strength levels ranging from 70 to 75 ksi [480 to 515 MPa], depending on thickness and condition.
• Grade B, Class 2 normalized
• Grade B, Class 3 normalized and precipitation heat treated

Precipitation strengthening can occur with air cooling after hot rolling, during normalizing, and by other heat treatment. These grades are not meant for use above 900°F [540°C].

SPECIFICATIONS

• Strength, Yield Strength ksi (MPa), Tensile Strength ksi (MPa): Grade A: Strong, 80 (550). Grade B: 70-75 (480-515)
• Formability: % Elongation: Good, 20%
  For better formability consider Drawing Steel
• Joining – Fair
  Design and welding must account for stresses.
• Corrosion Resistance – Basic.
  Galvanizing will slow corrosion. For longer life in harsh chemical conditions, consider Galvanized or Coated Steel
• Chemistry – Low carbon, medium manganese, silicon, alloyed with copper, Chromium, Nickel, and Molybdenum
• Cost – Higher.
  Good when thinner or stronger steels will add value.

ASTM A710 Steel, grade A, class 2, 25 – 50 mm inclusive

The following are suggested consumables for arc welding processes: Manual Shielded Metal-Arc (AWS A5.5) Low Hydrogen Electrodes E9016, and E9018; Submerged Arc (AWS A5.23) F9x-Exxx; Gas Metal-Arc (AWS A5.28) ER90S-x; Flux Cored-Arc (AWS A5.29) E9xT-x except -2, -3, -10, and -GS.

Physical Properties	Metric	English	Comments
Density	7.85 g/cc	0.284 lb/in³
Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	495 MPa	71800 psi
Tensile Strength, Yield	415 MPa	60200 psi
Elongation at Break	20 %	20 %
Modulus of Elasticity	205 GPa	29700 ksi	Typical for steel
Bulk Modulus	160 GPa	23200 ksi	Typical for steels
Poissons Ratio	0.29	0.29	Calculated
Shear Modulus	80.0 GPa	11600 ksi	Typical for steel.
Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000234 ohm-cm	0.0000234 ohm-cm	Typical steel
Thermal Properties	Metric	English	Comments
Specific Heat Capacity	0.475 J/g-°C	0.114 BTU/lb-°F	Typical steel
Thermal Conductivity	46.6 W/m-K	323 BTU-in/hr-ft²-°F	Typical steel
Component Elements Properties	Metric	English	Comments
Carbon, C	<= 0.070 %	<= 0.070 %
Chromium, Cr	0.60 – 0.90 %	0.60 – 0.90 %
Copper, Cu	1.0 – 1.3 %	1.0 – 1.3 %
Iron, Fe	95.33 – 97.13 %	95.33 – 97.13 %	As remainder
Manganese, Mn	0.40 – 0.70 %	0.40 – 0.70 %
Molybdenum, Mo	0.15 – 0.25 %	0.15 – 0.25 %
Nickel, Ni	0.70 – 1.0 %	0.70 – 1.0 %
Niobium, Nb (Columbium, Cb)	>= 0.020 %	>= 0.020 %
Phosphorous, P	<= 0.025 %	<= 0.025 %
Silicon, Si	<= 0.40 %	<= 0.40 %
Sulfur, S	<= 0.025 %	<= 0.025 %

ASTM A871

The ASTM A871 specification is the Standard Specification for High-Strength Low-Alloy Structural Steel Plates with Atmospheric Corrosion Resistance used in tubular structures and poles. Grades 60 and 65 are available in the as-rolled, normalized, or quenched and tempered delivery conditions as required to achieve the specified mechanical properties. The required ASTM G101 Corrosion Resistance Index must be ≥ 6.0.

Overview:

• Ideal structural steel for tubular structures and poles.
• Available in two grades: 60 and 65.
• Can be made to three types of chemical requirements: Type I, Type II and Type IV.
  May be provided as-rolled, normalized or quenched and tempered.
• Has atmospheric corrosion resistance and can be used in bare or unpainted conditions.
• Thicknesses greater than 1 1/4″ may be special ordered, but are not regularly stocked in our distribution centers.

Use in tubular structures and poles or in other appropriate uses.
High-Strength Low-Alloy Structural Steel Plate with Atmospheric Corrosion Resistance.

Two grades, 60 and 65, may be provided, as-rolled, normalized or quenched and tempered to meet the specified mechanical requirements.

SPECIFICATIONS

• Strength, Yield Strength ksi (MPa), Tensile Strength ksi (MPa): Grade A: Strong, 75 (515)
• Formability: % Elongation: Basic, 17%
  For better formability consider Drawing Steel
• Joining – Fair
  Design and welding must account for stresses.
• Corrosion Resistance – The atmospheric corrosion resistance of this steel in most environments is significantlyly better than that of carbon structural steels with or without copper addition. When properly exposed to the atmosphere, this steel can be used bare (unpainted) for many uses.
• Chemistry – Low carbon, medium manganese, silicon, alloyed with copper, Chromium, Nickel, and Molybdenum
• Cost – Higher.
  Good when thinner or stronger steels will add value.

ASTM A829

The ASTM A829 specification is the Standard Specification for Alloy Structural Steel Plates produced to chemical composition requirements and delivered in the as-rolled (green) condition. Parts produced from the as-rolled (green) plates are typically heat treated to obtained a combination of high strength and toughness.

General structural purposes.

Structural quality alloy steel plates usually specified to chemical composition requirements, but tensile properties may also be specified

We will be glad to help you select the exact grade for your needs.

GRADES

Grade 4140 and Grade 4142 are quenching and tempering steels in accordance with American codes of practice for the mechanical-engineering and tool-making fields, with a defined hardness range, unlike steels in accordance with the American standard.

• ASTM A829 Grade 4140
• ASTM A829 Grade 4142

These two quenching and tempering steels in accordance with ASTM A829 are comparable to a 42CrMo4 as specified in EN 10083, Part 3.
Above and beyond the applicable standard, these products are also tested for additional application-specific properties.
We supply Grade 4140 and Grade 4142 entirely to meet your requirements, in various delivery states and with precisely defined hardness ranges, up to plate thicknesses of 300 mm.
These steels convince users with their excellent cleanness and homogenous microstructure, precisely defined hardness and mechanical-strength range in delivery state. These assure low tool wear and good machinability.

Differences Between ASTM A529 & A572

The American Society for Testing and Materials standardizes, among other things, the composition and mechanical properties of steel. While many forms of steel possess similar compositions, such as A529 and A572, relatively small differences in the quantities of particular elements are enough to make the steels have different mechanical properties, and therefore, different applications.

Chemistry
In terms of chemistry, A529 and A572 have very similar elemental composition. A572 has a carbon content of about .21 percent, a manganese content of 1.35 percent, a phosphorous content of .04 percent, a silicon content of .3 percent and a sulfur content of .05 percent. In comparison, A529 steel has a content of .27 percent, a manganese content of 1.2 percent, a phosphorous content of .04 percent and a sulfur content of .05 percent. Additionally, A529 has copper added (.2 percent) and lacks silicon.

Mechanical Properties
Mechanically, A572 and A529 are very similar. A572 has an ultimate tensile or breaking strength of 60,200 pounds per square inch, a tensile yield strength of 42,100 psi and a shear modulus of 11,600 ksi. A529 possesses an ultimate tensile strength of 72,500 psi, a tensile yield strength of 42,100 psi and a shear modulus of 11,600 ksi. The additional ultimate tensile strength is partly due to the addition of copper and slightly higher carbon content of A572.

Uses
With such similar chemistry and nearly identical mechanical properties, A529 and A572 steel are used interchangeably in most applications. Both steels are typically available in plate and bar form. Because both types of steel can be easily welded and riveted, they are typically used in the construction of buildings, bridges and other structures.