High Strength Low Alloy Steel Plates

High Strength Low Alloy Steel Plates

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GNEE STEEL is proud to supply HSLA steel plate, commonly a construction steel plate, to exact customer specification across its nationwide branches.

 

GNEE Steel carries a deep inventory of carbon - or mild - steel plate as well as High Strength Low Alloy - or HSLA - steel plate. HSLA boasts a higher strength, lower weight and good machinability and ductility compared to conventional mild carbon steel grades.

 

HSLA structural steels are manufactured to meet specific mechanical properties, such as hardness, strength, corrosion resistance and environmental durability, making HSLA steels the ideal choice for structural construction including truck frames, brackets, crane booms, rail cars and other comparable applications. While certified HSLA steel grades have specific chemical compositions, engineers refer to HSLA mechanical properties over chemical composition when selecting material for a specific project.

 

High-strength low-alloy steel (HSLA) from GNEE Steel offers a unique combination of strength, formability and weldability to support weight reduction in complex automotive parts.

 

FEATURES

High-strength low-alloy steel (HSLA) products have a good combination of formability and weldability, offering increased strength achieved through the addition of small quantities of alloying elements. U. S. Steel engineers can assist with a well thought-out design that utilizes HSLA to open new possibilities for mass reduction and other benefits in complex parts across most automotive applications.

• Weldability-good welding characteristics
• Fatigue Performance-high-strength steels have good resistance to fatigue due to their relatively high yield strengths, making HSLA is a good candidate for durability-sensitive components
• Denting-good dent resistance attributes. For additional capabilities, please check our dent-resistance steels
• Applications-HSLA materials are typically found on structural parts of the vehicle, as most HSLA materials have very limited formability characteristics. The materials are found on rocker inners, b/c pillar reinforcements and cross members

 

Standard	Steel Grade (Click Grade for More Details)
ASTM A36/A36M	A36
ASTM A283/A283M	A283 Grade A	A283Grade B	A283Grade C	A283 Grade D
ASTM A514/A514M	A514 Grade A	A514 Grade B	A514 Grade C	A514 Grade E
	A514 Grade F	A514 Grade H	A514 Grade J	A514 Grade K
	A514 Grade M	A514 Grade P	A514 Grade Q	A514 Grade R
	A514 Grade S	A514 Grade T
ASTM A572/A572M	A572 Grade 42	A572 Grade 50	A572 Grade 55	A572 Grade 60
	A572 Grade 65
ASTM A573/A573M	A573 Grade 58	A573 Grade 65	A573 Grade 70
ASTM A588/A588M	A588 Grade A	A588 Grade B	A588 Grade C	A588 Grade K
ASTM A633/A633M	A633 Grade A	A633 Grade C	A633 Grade D	A633 Grade E
ASTM A656/A656M	A656 Grade 50	A656 Grade 60	A656 Grade 70	A656 Grade 80
ASTM A709/A709M	A709 Grade 36	A709 Grade 50	A709 Grade 50S	A709 Grade 50W
	A709 Grade HPS50W	A709 Grade HPS70W	A709 Grade 100	A709 Grade 100W
	A709 Grade HPS100W
ASME SA36/SA36M	SA36
ASME SA283/SA283M	SA283 Grade A	SA283Grade B	SA283Grade C	SA283 Grade D
ASME SA514/SA514M	SA514 Grade A	SA514 Grade B	SA514 Grade C	SA514 Grade E
	SA514 Grade F	SA514 Grade H	SA514 Grade J	SA514 Grade K
	SA514 Grade M	SA514 Grade P	SA514 Grade Q	SA514 Grade R
	SA514 Grade S	SA514 Grade T
ASME SA572/SA572M	SA572 Grade 42	SA572 Grade 50	SA572 Grade 55	SA572 Grade 60
	SA572 Grade 65
ASME SA573/SA573M	SA573 Grade 58	SA573 Grade 65	SA573 Grade 70
ASME SA588/SA588M	SA588 Grade A	SA588 Grade B	SA588 Grade C	SA588 Grade K
ASME SA633/SA633M	SA633 Grade A	SA633 Grade C	SA633 Grade D	SA633 Grade E
ASME SA656/SA656M	SA656 Grade 50	SA656 Grade 60	SA656 Grade 70	SA656 Grade 80
ASME SA709/SA709M	SA709 Grade 36	SA709 Grade 50	SA709 Grade 50S	SA709 Grade 50W
	SA709 Grade HPS50W	SA709 Grade HPS70W	SA709 Grade 100	SA709 Grade 100W
	SA709 Grade HPS100W
EN10025-2	S235JR	S235J0	S235J2
	S275JR	S275J0	S275J2
	S355JR	S355J0	S355J2	S355K2
	S420J0
EN10025-3	S275N	S275NL	S355N	S355NL
	S420N	S420NL	S460N	S460NL
EN10025-4	S275M	S275ML	S355M	S355ML
	S420M	S420ML	S460M	S460ML
EN10025-6	S460Q	S460QL	S460QL1
	S500Q	S500QL	S500QL1
	S550Q	S500QL	S500QL1
	S620Q	S620QL	S620QL1
	S690Q	S690QL	S690QL1
	S890Q	S890QL	S890QL1
	S960Q	S960QL
JIS G3101	SS330	SS400	SS490	SS540
JIS G3106	SM400A	SM400B	SM400C
	SM490A	SM490B	SM490C	SM490YA
	SM490YB	SM520B	SM520C	SM570
DIN 17100	St33	St37-2	Ust37-2	RSt37-2
	St37-3	ST52-3
DIN 17102	StE255	WStE255	TStE255	EStE255
	StE285	WStE285	TStE285	EStE285
	StE315	WStE315	TStE315	EStE315
	StE355	WStE355	TStE355	EStE355
	StE380	WStE380	TStE380	EStE380
	StE420	WStE420	TStE420	EStE420
	StE460	WStE460	TStE460	EStE460
	StE500	WStE500	TStE500	EStE500
GB/T700	Q235A	Q235B	Q235C	Q235D
	Q275
GB/T1591	Q345A	Q345B	Q345C	Q345D
	Q345E
	Q390A	Q390B	Q390C	Q390D
	Q390E
	Q420A	Q420B	Q420C	Q420D
	Q420E
	Q460C	Q460D	Q460E
GB/T16270	Q460C 32	Q460D 31	Q460E 30	Q460F
	Q500C	Q500D	Q500E	Q500F
	Q550C	Q550D	Q550E	Q550F
	Q620C	Q620D	Q620E	Q620F
	Q690C	Q690D	Q690E	Q690F
	Q800C 12	Q800D 11	Q800E 10	Q800F 9
	Q890C 8	Q890D 7	Q890E 6	Q890F 5
	Q960C 4	Q960D 3	Q960E 2	Q960F 1

 

 

Mechanical Properties A572 Gr 42:

Tensile:

60 ksi min

Yield:

42 ksi min

Elongation:

18% min in 8" 22% min in 2" (for plates wider than 24")

 

Mechanical Properties A572 Gr 50:

Tensile:

65 ksi min

Yield:

50 ksi min

Elongation:

16% min in 8" 19% min in 2" (for plates wider than 24")

 

Mechanical Properties A572 Gr 55:

Tensile:

70 ksi min

Yield:

55 ksi min

Elongation:

15% min in 8" 18% min in 2" (for plates wider than 24")

 

Mechanical Properties A572 Gr 60:

Tensile:

75 ksi min

Yield:

60 ksi min

Elongation:

13% min in 8" 15% min in 2" (for plates wider than 24")

 

Mechanical Properties A572 Gr 65:

Tensile:

80 ksi min

Yield:

65 ksi min

Elongation:

12% min in 8" 14% min in 2" (for plates wider than 24")

 

 

GRADE	GAUGE (INCHES)	WIDTH (INCHES)	LENGTH (INCHES)
A572	0.1875	96	240/480
A572	0.2500	60/96/120	240/480
A572	0.3125	60/96/120	240/480
A572	0.3750	60/96/120	240/480
A572	0.5000	60/96/120	240/480
A572	0.6250	60/96/120	240/480
A572	0.7500	60/96/120	240/480
A572	0.8750	60/96/120	240/480
A572	1.0000	60/96/120	240/480
A572	1.1250	60/96/120	240/480
A572	1.2500	60/96/120	240/480
A572	1.5000	60/96/120	240/480
A572	1.7500	60/96/120	240/480
A572	2.0000	60/96/120	240/480
A572	2.2500	96	240/480
A572	2.5000	96	240/480
A572	2.7500	96	240/480
A572	3.0000	96	240/480
A572	3.2500	96	240
A572	3.5000	96	240
A572	3.7500	96	240
A572	4.0000	96	240
A572	5.0000	96	240
A572	6.0000	96	240

 

What are the key benefits of HSLA Steel?

HSLA steel offers a number of notable benefits for construction applications. These key benefits and properties of HSLA steel include:

High strength: HSLA steel is regarded as being stronger than classic carbon steel thanks to the addition of certain alloying elements. These elements improve its strength and hardness, as the alloy atoms serve to prevent dislocation movements in the steel's micro-structure.

Lightweight material: High strength low-alloy steel is exceptionally lightweight. It adds reinforced stability to structures without burdening them with additional weight.

Enhanced toughness: The addition of alloying elements like silicon, nickel, molybdenum and vanadium creates an ultra-strong steel material.

Corrosion resistance: Specially manufactured HSLA steels include alloying elements such as nickel, chromium and copper. These elements enhance their corrosion resistance, preventing the formation of rust. ? Cost-effectiveness. HSLA steel's low costs have led to it being widely used in the construction of buildings, bridges, and a range of other engineered structures.

 

What are the applications of HSLA steel?

HSLA steels are valued across multiple industries and sectors for their cost efficiency and significant strength to weight ratios. Their applications range from construction to automotive manufacturing, energy production, and industrial uses.

In construction, this steel is used to construct strong and durable skyscrapers, bridges, and other structures. Automotive manufacturers use HSLA steel to create lightweight vehicles that combine a high degree of safety with excellent fuel efficiency.

The industrial sector uses high strength low-alloy steel to craft industrial and agricultural equipment and heavy machinery, ensuring that this equipment performs optimally in demanding conditions while still being lightweight enough to use efficiently. Many energy companies use it to construct oil and gas pipelines, wind turbines, and other types of energy infrastructure due to its corrosion resistance.

 

What are the different grades of HSLA steel?

HSLA steel grades vary, and each grade provides unique properties that make it suitable for specific applications and performance needs. Some key HSLA steel grades include ASTM A36 for general use, ASTM A572 for welding, ASTM A588 for steel weathering uses, and ASTM A656 for equipment manufacturing.

ASTM A36 is one of the most popular forms of HSLA steel available. Considered a general purpose solution, this steel is cost-efficient, machinable, and fully weldable. These properties make it a common choice for various structural uses.

ASTM A572 is a versatile type of steel that is also weldable and formable, making it suitable for use in construction projects for bridges and buildings. It comes in a variety of strength grades as well. ASTM A588 is highly anti-corrosive and is widely used in weathering steel applications that do not require the use of protective coatings, such as bridges and wind turbines.

ASTM A656 is highly tough and durable and is frequently used in demanding projects for the production of construction equipment, HSLA steel tubing, and load-bearing truck frames.

 

Why choose GNEE STEEL for HSLA steel?

GNEE STEEL has ample experience in serving the steel industry and offers a wide selection of high-quality HSLA steel products to meet a range of industrial needs. Our HSLA steel meets strict certifications such as EN 10025-6 S690 QL, NAXTRA M70, ALDUR 700 and DOME X 690. These standards ensure exceptional quality and performance, even under demanding conditions.

 

Our high strength low-alloy steels are also extensively low-temperature tested at -40, -45, and -60 degrees, and offer a superior yield range of between 65Ksi and 100Ksi. Additionally, all of our steel sections and plates are available in both non-standard and standard sizes, are fully weldable, and can be cut and profiled according to your specifications.

 

High Strength, Low Alloy (HSLA) steel has been widely used in bridges, buildings, pressure vessels, and other engineering structures due to its great mechanical properties and low cost.

Our HSLA steel has been low-temperature impact tested at -40, -45, and -60 degrees celsius and has a yield range from 65Ksi - 100Ksi.

Specifications

EN 10025-6 S690 QL

NAXTRA M70 & ALDUR 700 & DOME X 690

Stock Sizes are as per the below table:

Thickness (mm)	Length x Width (mm)	Length x Width (mm)	kg/m²
3	6000 x 1250		23.55
4	6000 x 1300		31.40
5	6000 x 1600		39.25
6	6000 x 2000	10000 x 2000	47.10
8	12000 x 2000	12000 x 2500	62.80
10	12000 x 2000	12000 x 2500	78.50
12	12000 x 2000	12000 x 2500	94.20
12.5	12000 x 2000	12000 x 2500	98.13
15	12000 x 2000	12000 x 2500	117.75
20	12000 x 2000	12000 x 2500	157.00
25	12000 x 2000	12000 x 2500	196.25
30	12000 x 2000	12000 x 2500	235.50
35	12000 x 2000	12000 x 2500	274.75
40	12000 x 2000	12000 x 2500	314.00
50	12000 x 2000	12000 x 2500	392.50
60	12000 x 2000	12000 x 2500	471.00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

What are the different types of HSLA steel plate?

There are 6 types of HSLA steel plate:

• Weathering steels have better corrosion resistance.
• Control-rolled steels are hot-rolled steels with a deformed austenite structure that, when cooled, turns into a fine equiaxed ferrite structure.
• Pearlite-reduced steels are steels with low levels of carbon that lead to little to no pearlite. Instead, they have a fine grain ferrite matrix.
• Acicular ferrite steels are very low carbon steels with a fine high-strength acicular ferrite structure.
• Dual-phase steels are steels with a ferrite microstructure that include small, regularly spaced sections of martensite. The martensite microstructure gives the dual-phase steel a combination of good formability, high work hardening, and low-yield strength.
• Microalloyed steels are steels with very small additions of vanadium, niobium, and/or titanium, added to help refine the grain size or precipitation hardening, or both.

Resistance to Atmospheric Corrosion

Equivalent to that of Carbon Steels

Color Marking: Brown and Orange
Specifications:

ASTM A 572 Grade 50 (Plates)

SAE J410 Grade 950X(Sheets, Plates)

 

Resistance to Atmospheric Corrosion

Two times that of Carbon Steels

Color Marking: Red and White
Specifications:

ASTM A 606 Type 2 (Sheets)

SAE J410 Grade 950B (Sheets, Plates)

Resistance to Atmospheric Corrosion

Four Times that of Carbon Steels
Color Marking: Gold and Red
Specifications:

ASTM A 242 Type 1 (Plates)

A588 (Plates)

A606 Type 4 (Sheets)

SAE J410 Grade 950D (Sheets, Plates)

 

Is HSLA steel plate considered a construction steel plate?

HSLA steel plates are engineered to provide better mechanical properties and greater resistance to atmospheric corrosion than conventional carbon steels. These characteristics make them well-suited as a construction steel plate.

 

Key Properties Relevant to Construction

High strength-to-weight ratio: Reduces material usage without compromising structural integrity.

Good weldability and formability: Allows easier fabrication of structures.

Toughness and durability: Can withstand heavy loads and harsh conditions.

Corrosion resistance: Important for longevity, especially in bridges and exposed structures.

 

Typical Construction Uses

Structural beams and columns

Bridge construction

Buildings and high-rises

Cranes and heavy equipment

Earthmoving equipment frames

Steel frameworks and reinforcements

 

Common Construction Steel Plate Grades

ASTM A572 (Grades 50, 60)

ASTM A709 (used in bridges)

ASTM A588 (enhanced atmospheric resistance)

 

 

 

 

 

 

Our products have undergone strict quality testing and come with professional certificates. If you have any questions about High Strength Low Alloy Steel Plates, please feel free to inspect.

 

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