+86 371 55057610 
inquiry@xsteelplate.com
■ Overview
High strength low alloy structural steel Q420C,Q420C CARBON PLATE,Q420C STEEL PLATE owned the minimum yield point above 420 Mpa for the thickness equal or belows 16mm,and tensile strength shall be within 520-680 Mpa.Normlised Q420C is mainly for heavy steel plate for improve the steel property when rolling.
■ Full Data
Technical Requirements & Additional Services for Q420C STEEL PLATE:
♦ Low temperature impacting test
♦ Cutting and welding as per end user’s demands
♦ More striction on some chemical elements contains
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Ultrasonic test under GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578
♦ Low temperature impacting test
♦ Cutting and welding as per end user’s demands
♦ More striction on some chemical elements contains
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Ultrasonic test under GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578
■ Techicals
►Mechnical property for Q420C low alloy structural steel:
| Thickness (mm) | ||||
| Q420C | ≤ 16 | > 16 ≤ 35 | > 35 ≤ 50 | >50 |
| Yield strength (≥Mpa) | 420 | 400 | 380 | 360 |
| Tensile strength (Mpa) | 520-680 | |||
►Chemical composition for Q420C low alloy structural steel (Heat Analysis Max%)
| Main chemical elements composition of Q420C | ||||||||||
| C | Si | Mn | P | S | V | Nb | Ti | Al (min.) | Cr | Ni |
| 0.20 | 0.55 | 1.00-1.70 | 0.035 | 0.035 | 0.02-0.20 | 0.015-0.060 | 0.02-0.20 | 0.015 | 0.40 | 0.70 |
Tel：+86 371 55057610 
Fax： +86 371 5505 7611