Qingdao Xinzhonglian Steel Co., Ltd.
Q390B-Q390D hot rolled steel round bars
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Product Details
Product introduction
Q390B-Q390D hot rolled steel round bars
GB/T1591 Q390 contains five different steel grades as Q390A,Q390B,Q390C,Q390D and Q390E.Structural steel Q390D shall be done impacting test at low temperature minus 20 degree centigrade.Normalised heat treatment suggested to be done for low alloy steel plate Q390D in heavy thickness.
Product parameters
|
Steel Grade: |
Q390 |
Application: |
High Speed Steel, Tool Steel |
|
Shape: |
Round bar |
Standard: |
AISI, DIN, JIS, GB |
|
Size: |
50mm*50mm-600mm*600MM |
Surface: |
Black, Peeled, Turned, Grinded |
|
Technique: |
Hot rolled, Forged |
Ultrasonic Test: |
100% UT Passed |
Dimensions
|
|
Hot Rolled |
Forged |
|
Size(mm) |
50mm*50mm-600mm*600MM
|
50mm*50mm-600mm*600MM |
|
Length (mm) |
6000 or as required |
1000-6000 |
Chemical and Mechanical
Mechnical property for Q390B low alloy structural steel:
| Thickness (mm) | ||||
| Q390B | ≤ 16 | > 16 ≤ 35 | > 35 ≤ 50 | >50 |
| Yield strength (≥Mpa) | 390 | 370 | 350 | 330 |
| Tensile strength (Mpa) | 490-650 | |||
Chemical composition for Q390B low alloy structural steel (Heat Analysis Max%)
| Main chemical elements composition of Q390B | |||||||||
| C | Si | Mn | P | S | V | Nb | Ti | Cr | Ni |
| 0.20 | 0.55 | 1.00-1.60 | 0.040 | 0.040 | 0.02-0.20 | 0.015-0.060 | 0.02-0.20 | 0.30 | 0.70 |
Technical Requirements & Additional Services:
♦ 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
Hot Products
FACTORY
The company adheres to the business philosophy of "service creates value, integrity creates brand", and the corporate spirit of "pioneering and enterprising, tenacious and hardworking, seeking truth and innovation, and win-win cooperation".
APPLICATION
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Based on integrity and with the purpose of providing good professional services, we use our sincere and rigorous management and professional dedication to provide excellent services and high-quality products to our esteemed domestic and foreign customers in terms of quality, price, and other aspects.
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FAQ
2023.01.03
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non-working time.
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Office Address
Century Center of Excellence, Dunhua Road, Shibei District, Qingdao
