Q390B-Q390D hot rolled steel round bars
Classification :
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
Warehouse storage
Our company is a quality benchmark enterprise in Shandong Province, a national contract-abiding and credit-abiding enterprise, and a national, industry and group standard unit for "Colored Steel Plate for Building Decoration". We have many customers all over the world, and our products are exported to Asia, the Middle East, America, Europe, Africa and other countries, enjoying a good reputation at home and abroad. Up to now, we have also established long-term, win-win partnerships with a number of large steel mills.

Packing and delivery
We are the first-level agent for Chinese state-owned enterprises Shanghai Baosteel and Taigang Iron and Steel Group. Our products can meet every unique requirement of our customers. We provide customized services. We can support customers with quality inspections if needed. We can provide competitive prices, good quality control, purchasing suggestions. Welcome to inquire and order!

Customer visit
Up to now, we have also established long-term, win-win partnerships with a number of large steel mills. We are the first-level agent for Chinese state-owned enterprises Shanghai Baosteel and Taigang Iron and Steel Group. Our products can meet every unique requirement of our customers. We provide customized services.

Application field
The main supply fields are: aerospace, national defense equipment, military weapons, chemical industry, shipbuilding, nuclear energy, trains, containers, environmental protection, precision machining, auto parts, machinery, electronic products, molds, medical treatment Equipment, construction, decoration, etc.

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1 : Prime quality and reasonable price.
2 : Wide excellent experiences with after-sale service.
3 : Every process will be checked by responsible QC which insures every product's quality.
4 : Professional packing teams which keep every packing safely.
5 : Trial order can be done in one week.
6 : Samples can be provided as your requirements
FAQ
Q2:Does the product have quality inspection before loading?
A:Of course, all our products have undergone strict quality inspection before packing.
Q3:Can you provide the samples free?
Q4:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
Q6:What is your terms of payment ?