LONG PRODUCTS -Angle<equal and unequal>

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

• Q235/Q345: These are Chinese National Standard (GB) grades for carbon structural steel. Q235 has a minimum yield strength of 235 MPa, and Q345 has a minimum yield strength of 345 MPa.
• ASTM A36/A572: These are American Society for Testing and Materials (ASTM) standards for carbon structural steel. ASTM A36 is a common structural steel, and ASTM A572 covers high-strength low-alloy columbium-vanadium structural steel.
• S235JR/S275JR/S355JR: These are European Standard (EN) grades for structural steel. The numbers (235, 275, 355) represent the minimum yield strength in MPa, and "JR" indicates that the steel has a minimum impact energy value at room temperature.
• SS400 /SS540: These are Japanese Industrial Standard (JIS) grades for general structural steel. SS400 is a common structural steel with a tensile strength of 400-510 MPa, and SS540 is a higher strength grade.
• etc.: Implies that other grades might also be available.

Size 1:

• 20*20*2mm—200*200*25mm: This format indicates dimensions for equal angle steel. The numbers represent "leg length x leg length x thickness". So, this range covers angle steel from 20mm x 20mm with 2mm thickness up to 200mm x 200mm with 25mm thickness.

Size 2:

• 75*50*5.0mm—125*75*8.0mm: This format indicates dimensions for unequal angle steel. The numbers represent "longer leg length x shorter leg length x thickness". So, this range covers unequal angle steel from 75mm x 50mm with 5.0mm thickness up to 125mm x 75mm with 8.0mm thickness.