STANDARD FOR STEEL AND FLEXURAL STRENGTH (GROUP 1 AND 3)

What are the key properties of steel that ensure its safety and performance?

• Strength, composition, and ductility

• Weight, color, and size

• Cost, availability, and brand

• Flexibility, hardness, and texture

What does the tensile test for steel measure?

• Mechanical properties such as strength and ductility

• Chemical composition

• Surface finish

• Weight and dimensions

What is the purpose of the bending test for steel?

• To evaluate weld quality and ductility

• To measure tensile strength

• To assess corrosion resistance

• To determine yield strength

What is the significance of ductility in steel?

• It allows steel to deform without breaking

• It increases the weight of the steel

• It enhances the color of the steel

• It reduces the cost of steel

What are the risks associated with using non-standard steel?

• Lower strength and faster corrosion

• Higher costs and better quality

• Increased weight and size

• Improved flexibility and ductility

Are established guidelines and specifications that define the properties, composition, testing methods, and performance.

• Steel Standards

• Concrete Standards

• Cement Standards

• Construction Standards

Is a globally recognized standards organization that creates voluntary, consensus-based guidelines for materials, products, systems, and services. Founded in 1898

• ASTM

• UTM

• ACI

• PICE

It is a standard carbon structural steel widely used in general construction and fabrication. It typically contains up to 0.26% carbon, around 1.03% manganese, and small amounts of phosphorus and sulfur.

• ASTM A38

• ASTM A37

• ASTM A35

• ASTM A36

ASTM A36:

Minimum yield strength

Ultimate tensile strength

• 250 MPa (36 ksi)

  400–550 MPa

• 260 MPa (38 ksi)

  450–500 MPa

• 270 MPa (40 ksi)

  500–550 MPa

• 280 MPa (42 ksi)

  500–600 MPa

Are technical standards established to ensure product quality, safety, and performance in the Philippines.

• The Philippine National Standards (PNS)

• ASTM (American Society for Testing and Materials)