A588GrA Weathering Structural Steel Composition and Basic Properties Introduction

1. Basic information of A588GrA

A588 Standard ASTM A588/A588M-2015 Atmospheric Corrosion Resistant High Strength Low Alloy Structural Steel with a Minimum Yield Point of 345MPa Material Category Weathering Steel, Low Alloy High Strength Steel Products General construction and various types of construction machinery.

2. Chemical composition of A588GrA weathering steel plate:

C≤0.19 Si: 0.3~0.65 Mn: 0.8~1.25 P≤0.03 S≤0.03 Ni≤0.4

Cr: 0.4~0.65 Cu: 0.25~0.4 V: 0.02~0.1

3. Mechanical properties of A588GrA weathering steel plate:

Variety, Shape, Delivery Status, Specification Details -Board(>125~200)>125~200

Re(MPa)≥345 Rm(MPa)≥485 A50(%)≥21 A200≥18%

Re(MPa)≥345 Rm(MPa)≥485 A50(%)≥21 A200≥18%

Re(MPa)≥315 Rm(MPa)≥460 A50(%)≥21

Re(MPa)≥290 Rm(MPa)≥435 A50(%)≥

4. Application scenarios of A588GrA steel plate:

A protective layer is formed on the surface of the metal substrate, so that it has high atmospheric corrosion resistance. A588 low-alloy high-strength steel plate includes A588GrA, A588GrB, A588GrC, which are used for manufacturing workshops, general buildings and various construction machinery, such as mines and various Drilling rigs, electric shovels, electric wheel dump trucks, mining vehicles, excavators, loaders, bulldozers, various cranes, coal mine hydraulic supports and other mechanical equipment and other structural parts for engineering construction. 8mm~200mm thick A588 series high weathering bridge structural steel plates include A588GrA, A588GrB, etc. This type of steel forms a protective layer on the surface of the metal substrate through the alloying of Cu, P, Cr, Ni, etc., so that it has high atmospheric corrosion resistance. This type of steel is widely used in various weather-resistant building structural parts (especially for industrial atmospheric environments), bridge auxiliary structural parts, etc.