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Q370qD Alloy Steel

Q370qD

Bridge structural steel. (GB/T 714; equiv GB/T 714 Q345qD). Nominal values—confirm mill certificate.

Q370qE Alloy Steel

Q370qE

Bridge structural steel. (GB/T 714; equiv GB/T 714 Q345qD). Nominal values—confirm mill certificate.

Q370R Alloy Steel

Q370R

(GB/T 713). Nominal values—confirm mill certificate.

Q390 Alloy Steel

Q390

General-purpose carbon structural steel. (GB/T 13791; equiv GB Q235 / ASTM A36 / EN S235 / JIS SS400). Nominal values—confirm mill certifica…

Q390A Alloy Steel

Q390A

Low-alloy high-strength structural steel. (GB/T 1591; equiv GB Q345 / EN S355 / ASTM A572 Gr50). Nominal values—confirm mill certificate.

Q390B Alloy Steel

Q390B

Low-alloy high-strength structural steel. (GB/T 1591; equiv GB Q345 / EN S355 / ASTM A572 Gr50). Nominal values—confirm mill certificate.

Q390C Alloy Steel

Q390C

Low-alloy high-strength structural steel. (GB/T 1591; equiv GB Q345 / EN S355 / ASTM A572 Gr50). Nominal values—confirm mill certificate.

Q390D Alloy Steel

Q390D

Low-alloy high-strength structural steel. (GB/T 1591; equiv GB Q345 / EN S355 / ASTM A572 Gr50). Nominal values—confirm mill certificate.

Q390E Alloy Steel

Q390E

Low-alloy high-strength structural steel. (GB/T 1591; equiv GB Q345 / EN S355 / ASTM A572 Gr50). Nominal values—confirm mill certificate.

Q415NH Alloy Steel

Q415NH

Specialty steel grade. tructural steel. (GB/T 4171; equiv Q415NH). Nominal values—confirm mill certificate.

Q420 Alloy Steel

Q420

General-purpose carbon structural steel. (GB/T 13791; equiv GB Q235 / ASTM A36 / EN S235 / JIS SS400). Nominal values—confirm mill certifica…

Q420A Alloy Steel

Q420A

Low-alloy high-strength structural steel. (GB/T 1591; equiv GB Q345 / EN S355 / ASTM A572 Gr50). Nominal values—confirm mill certificate.

Q420B Alloy Steel

Q420B

Low-alloy high-strength structural steel. (GB/T 1591; equiv GB Q345 / EN S355 / ASTM A572 Gr50). Nominal values—confirm mill certificate.

Q420C Alloy Steel

Q420C

Low-alloy high-strength structural steel. (GB/T 1591; equiv GB Q345 / EN S355 / ASTM A572 Gr50). Nominal values—confirm mill certificate.

Q420D Alloy Steel

Q420D

Low-alloy high-strength structural steel. (GB/T 1591; equiv GB Q345 / EN S355 / ASTM A572 Gr50). Nominal values—confirm mill certificate.

Q420E Alloy Steel

Q420E

Low-alloy high-strength structural steel. (GB/T 1591; equiv GB Q345 / EN S355 / ASTM A572 Gr50). Nominal values—confirm mill certificate.

Q420qD Alloy Steel

Q420qD

Bridge structural steel. (GB/T 714; equiv GB/T 714 Q345qD). Nominal values—confirm mill certificate.

Q420qE Alloy Steel

Q420qE

Bridge structural steel. (GB/T 714; equiv GB/T 714 Q345qD). Nominal values—confirm mill certificate.

Q420R Alloy Steel

Q420R

(GB/T 713). Nominal values—confirm mill certificate.

Q45CrNiMoVA Alloy Steel

Q460 Alloy Steel

Q460

General-purpose carbon structural steel. (GB/T 13791; equiv GB Q235 / ASTM A36 / EN S235 / JIS SS400). Nominal values—confirm mill certifica…

Q460C Alloy Steel

Q460C

(GB/T 16270). Nominal values—confirm mill certificate.

Q460D Alloy Steel

Q460D

(GB/T 16270). Nominal values—confirm mill certificate.

Q460E Alloy Steel

Q460E

(GB/T 16270). Nominal values—confirm mill certificate.

Q460NH Alloy Steel

Q460NH

Specialty steel grade. tructural steel. (GB/T 4171; equiv Q460NH). Nominal values—confirm mill certificate.

Q460qE Alloy Steel

Q460qE

Bridge structural steel. (GB/T 714; equiv GB/T 714 Q345qD). Nominal values—confirm mill certificate.

Q460R Alloy Steel

Q460R

(GB/T 713). Nominal values—confirm mill certificate.

Q500 Alloy Steel

Q500

Low-alloy high-strength structural steel. (GB/T 1591; equiv GB Q345 / EN S355 / ASTM A572 Gr50). Nominal values—confirm mill certificate.

Q500C Alloy Steel

Q500C

(GB/T 16270). Nominal values—confirm mill certificate.

Q500D Alloy Steel

Q500D

(GB/T 16270). Nominal values—confirm mill certificate.

Q500E Alloy Steel

Q500E

(GB/T 16270). Nominal values—confirm mill certificate.

Q550 Alloy Steel

Q550

Low-alloy high-strength structural steel. (GB/T 1591; equiv GB Q345 / EN S355 / ASTM A572 Gr50). Nominal values—confirm mill certificate.

Q550C Alloy Steel

Q550C

(GB/T 16270). Nominal values—confirm mill certificate.

Q550D Alloy Steel

Q550D

(GB/T 16270). Nominal values—confirm mill certificate.

Q550E Alloy Steel

Q550E

(GB/T 16270). Nominal values—confirm mill certificate.

Q620 Alloy Steel

Q620

Low-alloy high-strength structural steel. (GB/T 1591; equiv GB Q345 / EN S355 / ASTM A572 Gr50). Nominal values—confirm mill certificate.

Q620C Alloy Steel

Q620C

(GB/T 16270). Nominal values—confirm mill certificate.

Q620D Alloy Steel

Q620D

(GB/T 16270). Nominal values—confirm mill certificate.

Q620E Alloy Steel

Q620E

(GB/T 16270). Nominal values—confirm mill certificate.

Q690 Alloy Steel

Q690

Low-alloy high-strength structural steel. (GB/T 1591; equiv GB Q345 / EN S355 / ASTM A572 Gr50). Nominal values—confirm mill certificate.

Q690C Alloy Steel

Q690C

(GB/T 16270). Nominal values—confirm mill certificate.

Q690D Alloy Steel

Q690D

(GB/T 16270). Nominal values—confirm mill certificate.

Q690E Alloy Steel

Q690E

(GB/T 16270). Nominal values—confirm mill certificate.

Q720 Alloy Steel

Low-alloy high-strength structural steel; yield strength (MPa) equals the grade number. Microalloyed (Nb/V/Ti) with TMCP; used in welded str…

Q760 Alloy Steel

Low-alloy high-strength structural steel; yield strength (MPa) equals the grade number. Microalloyed (Nb/V/Ti) with TMCP; used in welded str…

Q800 Alloy Steel

Low-alloy high-strength structural steel; yield strength (MPa) equals the grade number. Microalloyed (Nb/V/Ti) with TMCP; used in welded str…

Q800D Alloy Steel

Q800D

(GB/T 16270). Nominal values—confirm mill certificate.

Q800E Alloy Steel

Q800E

(GB/T 16270). Nominal values—confirm mill certificate.

Q890 Alloy Steel

Low-alloy high-strength structural steel; yield strength (MPa) equals the grade number. Microalloyed (Nb/V/Ti) with TMCP; used in welded str…

Q890D Alloy Steel

Q890D

(GB/T 16270). Nominal values—confirm mill certificate.