LONG PRODUCTS -D-BAR

Standard:

• JIS: Japanese Industrial Standards
• EN: European Standards
• ASTM: American Society for Testing and Materials
• GB: Guobiao (Chinese National Standards)

Grade: This section lists various material grades or designations, which are common for rebar:

• SD295A/B, SD345, SD390, SD490: These are likely Japanese Industrial Standard (JIS) grades for steel reinforcing bars, indicating different yield strengths (e.g., SD345 typically means a minimum yield strength of 345 N/mm²).
• BS4449 460B/B500B: These refer to British Standard (BS) for steel for the reinforcement of concrete. 460B and B500B denote different strength classes (e.g., 500 MPa yield strength).
• ASTM A615/A706, GR40/GR60: These are American Society for Testing and Materials (ASTM) standards for deformed and plain carbon-steel bars for concrete reinforcement. GR40 and GR60 refer to Grade 40 (40,000 psi yield strength) and Grade 60 (60,000 psi yield strength) respectively. ASTM A706 is a low-alloy steel specific for weldability.
• HRB335/HRB400: These are Chinese National Standard (GB) grades for hot-rolled ribbed steel bars for the reinforcement of concrete, with HRB400 indicating a minimum yield strength of 400 MPa.
• etc.: Implies that other grades might also be available.

Size 1:

• 8mm—50mm (This range is typical for rebar diameters).

Size 2:

• 6mm—12mm (This range might refer to a different product line or smaller diameter rebar/wire).