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A572 Grade 50 Plate for Heavy Machinery: Strength and Durability for Demanding Applications

 

A572 Grade 50 plate is a high-strength low-alloy (HSLA) structural steel that excels in heavy machinery construction, offering superior yield strength and toughness for components under extreme loads. As a leading ASTM A572 STEEL PLATE supplier in China, Gangsteel provides premium A572 Gr 50 plate tailored for heavy equipment like excavators, loaders, and cranes.

Gangsteel high strength low alloy steel meets ASTM A572 standards, ensuring excellent weldability and corrosion resistance for machinery frames, booms, and buckets. Ideal for industries like mining, construction, and agriculture, A572 Grade 50 structural steel reduces weight while maintaining durability, with Gangsteel offering large stock and fast global delivery.

 

1. General Description of A572 Grade 50 Plate for Heavy Machinery

A572 Grade 50 plate, part of the ASTM A572 specification, is an HSLA steel designed for structural applications requiring high strength and impact resistance. In heavy machinery, it’s used for critical components like chassis, arms, and attachments, where a572 gr 50 steel withstands repeated stress and abrasion. Alloyed with columbium and vanadium, this carbon steel plate offers better fatigue resistance than standard steels, making it ideal for off-road equipment and mining rigs. Gangsteel's A572 Gr 50 plate is compliant with ASME, EN, JIS, and DIN, ensuring seamless integration into heavy machinery designs for enhanced performance and longevity.

 

2. A572 Grade 50 Chemical Composition

The chemical composition of A572 Grade 50 ensures optimal strength and weldability for heavy machinery:

Element

Composition (%)

Carbon (C)

≤ 0.23

Manganese (Mn)

≤ 1.35

Phosphorus (P)

≤ 0.04

Sulfur (S)

≤ 0.05

Silicon (Si)

≤ 0.40

Vanadium (V)

≤ 0.01-0.15

Columbium (Nb)

≤ 0.005-0.05

Copper (Cu) (optional)

≥ 0.20

This astm a572 gr 50 chemical composition promotes low carbon equivalent, facilitating welding in machinery fabrication.

 

3. A572 Grade 50 Mechanical Properties

A572 Grade 50 offers robust mechanical properties for heavy machinery:

Property

Value

Yield Strength (Min)

345 MPa (50 ksi)

Tensile Strength

450 MPa (65 ksi) min

Elongation (in 200mm)

≥ 18%

Elongation (in 50mm)

≥ 21%

Charpy Impact (at 0°C, optional)

≥ 27 J

The astm a572 gr 50 mechanical properties provide high fatigue resistance, essential for machinery under cyclic loads.

 

4. Equivalent Grades of A572 Grade 50

A572 Grade 50 has international equivalents for global machinery projects:

Standard

Equivalent Grade

EN 10025

S355JR / S355J0

DIN

St52-3

JIS

SM490A / SM490YA

GB

Q345B / Q345D

BS

50B / 50C

These astm a572 gr 50 equivalent material ensure compatibility for machinery manufacturing worldwide.

 

5. A572 Grade 50 vs ASTM A36 Steel

A572 Grade 50 vs A36 steel: Grade 50 has higher yield (345 MPa vs 250 MPa) and alloys for better corrosion resistance. A36 is cost-effective for lighter machinery, but Grade 50 excels in heavy-duty applications. Choose A572 Grade 50 vs A36 steel for machinery requiring reduced weight and enhanced strength.

 

6. Applications of A572 Grade 50 Plate in Heavy Machinery

A572 Grade 50 plate is used in heavy machinery for booms, buckets, and frames in excavators, loaders, and bulldozers. Its high strength allows for thinner, lighter components, improving fuel efficiency and maneuverability. In mining equipment, it withstands abrasion, while in agricultural machinery, it handles rugged terrain. Gangsteel's A572 Grade 50 bridge steel plate expertise extends to machinery, ensuring compliance for durable designs.

 

7. Specification of A572 Grade 50 Plate for Heavy Machinery

Gangsteel offers customizable specifications for machinery:

Dimension

Available Range

Thickness

6mm - 200mm

Width

1500mm - 3200mm

Length

Up to 18000mm

These dimensions support heavy machinery fabrication with precision.

 

8. Available Sizes and Supply Conditions

Gangsteel stocks A572 Grade 50 plate in thicknesses 6-200mm, widths 1500-3200mm, and lengths up to 18000mm. Supply conditions include as-rolled, normalized, TMCP, and quenched/tempered. As an ASTM A572 Grade 50 steel supplier China, we provide custom services like cutting and testing. Inquire about astm a572 gr 50 plate sizes with competitive A572 Grade 50 steel price per ton.

 

9. FAQ – Frequently Asked Questions about A572 Grade 50 Plate for Heavy Machinery

1. What is A572 Grade 50 steel used for in heavy machinery?

It's used for frames, booms, and buckets in excavators and loaders, offering high strength for heavy loads.

2. What are the mechanical properties of A572 Grade 50?

A572 Grade 50 mechanical properties include min yield of 345 MPa and tensile of 450 MPa.

3. What is the chemical composition of A572 Grade 50?

Low carbon with vanadium and columbium, per A572 Grade 50 chemical composition.

4. What are the equivalent materials for A572 Grade 50?

EN S355JR, JIS SM490A, per A572 Grade 50 equivalent material.

5. What is the difference between A572 Grade 50 and A36 steel?

A572 Grade 50 vs A36 has higher strength and alloys for better performance in machinery.

6. Where can I buy A572 Grade 50 plate for heavy machinery in China?

Gangsteel, a leading ASTM A572 Grade 50 steel supplier China, offers stock-ready plates.

 

10. Why Buy A572 Grade 50 Plate from GANGSTEEL?

Gangsteel provides A572 Grade 50 with large stock, 7-15 day delivery, and MTC EN 10204 3.1 certification. Explore related grades: A572 Grade 42 STEEL PLATE, A572 Grade 55 STEEL PLATE, A572 Grade 60 STEEL PLATE, A572 Grade 65 STEEL PLATE. Choose Gangsteel for your A572 Grade 50 structural steel needs in heavy machinery.

 

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