Q355 S355 Square and Rectangular Steel Pipe Price Per Piece

S355 and Q355 are both designations for structural steel, but they come from different standards and have some differences in their specifications and applications.

S355 Steel
Standard: EN 10025-2 (European Standard)
Grade: S355
Description: S355 is a high-strength, low-alloy structural steel with a minimum yield strength of 355 MPa. It is commonly used in construction and structural applications due to its good weldability and machinability.
Common Subgrades:

S355JR: General structural steel with a minimum yield strength of 355 MPa and impact energy of 27J at room temperature.
S355J0: Minimum impact energy of 27J at 0°C.
S355J2: Minimum impact energy of 27J at -20°C.

Q355 Steel
Standard: GB/T 1591 (Chinese Standard)
Grade: Q355
Description: Q355 is a high-strength structural steel with a minimum yield strength of 355 MPa, similar to S355. The "Q" stands for "Qu" (yield point), and "355" refers to the minimum yield strength in MPa.
Common Subgrades:

Q355B: Minimum impact energy of 27J at 20°C.
Q355C: Minimum impact energy of 27J at 0°C.
Q355D: Minimum impact energy of 27J at -20°C.

Strict Quality Control:
1) During and after production, 4 QC staffs with more than 5 years experience inspect products in random.
2) National accredited laboratory with CNAS certificates
3) Acceptable inspection from third party appointed/paid by buyer, such as SGS, BV.
4) Approved by Malaysia, Indonesia, Singapore, Philippines, Australia, Peru and UK. We own UL /FM, ISO9001/18001, FPC certificates

Packing and Delivery:
Packing Details : in hexagonal seaworthy bundles packed by steel strips, With two nylon slings for each bundles.
Delivery Details : Depending on the QTY, normally one month.