1, Product Description
Hot rolling can be contrasted to cold rolling. Cold rolling is the rolling conducted below the recrystallization temperature, whereas hot rolling is the rolling conducted beyond the recrystallization temperature.
Advantages:
1), Hot-rolling can significantly lower energy consumption as well as costs. During hot rolling, metal plasticity is high while deformation resistance is low, thus significantly reducing the energy consumption of metal deformation.
2), Hot rolling can enhance the processing performance of metals and alloys. To be specific, hot rolling can crush coarse grains in casting state, heal significant cracks, reduce or eliminate casting defects, turn as-cast microstructure into deformation microstructure and boost the processing performance of alloys.
3), Hot rolling usually daopts large ingots and large reduction rolling, since this will not only boost productivity, but increase rolling speed and create conditions for achieving continuous and automatic rolling.
2, Use Description
1, Applicable to general sturctural steel and hot-rolled steel plate and strip and used for welding pipe, cold-rolled material, bicycle parts and important member of welding, riveting and bolting.
2, Used for cold-rolled and deep-drawing products.
3, Production of stamping and member of cars, tractors, construction hoisting machines and small light industrial and civil machines.
4, Production of containers and bare metal members.
5, Pipe welding and steel structure.
6, Pipelines for transporting oil and natural gas.
7, Automobile frames and beams.
8, Special steel for car wheels.
2,1 Grande between China and Europe, USA, Japan
| CHINESE GRADE |
GRADE OF EUROPE,USA AND JAPAN |
| Q345A |
USA ASTM A572M Gr:50 |
| GERMANY,UK,FRANCE EN10025 E335 |
| Q345B |
USA ASTM A572M Gr:50 |
| GERMANY,UK,FRANCE EN10025 S335JR |
| Q345C |
GERMANY,UK,FRANCE EN10025 S335J0 |
| Q345D |
GERMANY,UK,FRANCE EN10025 S335J2 |
| Q195,Q215A,Q215B |
JAPAN JIS G3101 SS330,SPHC,SPHD |
| Q235A |
JAPAN JIS G3101 SS400 |
| GERMANY,UK,FRANCE EN10025 S235JR |
| Q235B |
JAPAN JIS G3101 SS400 |
| GERMANY,UK,FRANCE EN10025 S235J0 |
| Q235C |
JAPAN JIS G3106 SM400A SM400B |
| GERMANY,UK,FRANCE EN10025 S235J0 |
| Q235D |
JAPAN JIS G3106 SM400A |
| GERMANY,UK,FRANCE EN10025 S235J2 |
| 10,15,20,08Al |
JAPAN JIS G3131 |
| GERMANY DIN EN10083-2 |
| SAE1010,SAE1008 |
USA ASTM A568M |
| SAE1006 |
| SPHC,SPHD,SPHE |
JAPAN JIS G3131 |
| DD11,DD12,DD13 |
GERMANY DIN EN10051 |
| Q345A |
USA ASTM A572M Gr.50 |
| GERMANY,UK,FRANCE EN10025 E335 |
| Q345B |
USA ASTM A572M Gr.50 |
| GERMANY,UK,FRANCE EN10025 S335JR |
| Q345C |
GERMANY,UK,FRANCE EN10025 S355J0 |
| Q345D |
GERMANY,UK,FRANCE EN10025 S355J2 |
| S355J0+AR,S355JR+AR |
EN10051-2:2004 |
| Gr.65,Gr.50 |
USA ASTM A572/ A572M-03a |
| SPHT1,SPHT2,SPHT3 |
JAPAN JIS G3132 |
| L210,L245,L290,L320,L360,L390,A,B,X42,X46,X52,X56,L245MB,L290MB,L360MB |
API5L |
|
| SS400 |
JAPAN JIS G3101 |
| SM490A |
JAPAN JIS G3106 |
| SPA-H |
JAPAN JIS G3125 |
| SN400B |
JAPAN JIS G3136 |
| GR50,GR50LCVN |
USA ASTM A572 |
| GR50 W/.2%Cu,GR65 |
TYPE2 |
3, Specifications and Parameters
4, FAQ
4.1 How about Sunyee Commercial company?
Sunyee Commercial is an international trading company dedicated to producing and selling a series of steel coil. We have experience of more then 10 years, and have export to many countires such as: USA, Brazil, Angola, South Africa, Irland, Pakistan, etc.
4.2 How about Sunyee's QC team and how they work?
Sunyee's QC team is very important, they will keep the quality control for our products. Our team will controle and test quality at start of production, median production and final production, for guarantee the same quality of total production.
4.3 Will you test product at third part?
Sunyee always will test products at SGS before shippment. And we will sand copy report to client first, and then we sand original tegother with others documents.
4.4 How about delivery time?
Our delivery time usually is 15-30days for normal product. According to clients quantity or different requirement, maybe cost little longer time. But of cause we always do our best to ship earlier.
nspection
Third party inspection that is preferred by new customers are proved to be convincing. Through years' of operation, M/S Chengdu Derbo has established stable contact with world famous third party inspection authorities like BV, SGS, INTERTEK, etc, and more than 5000M.Tons of steel plate from Chengdu Derbo have been inspected by them.
Please contact me without any hesitition if you have any problems of our products !
We will offer warm-hearted service to you !
Q:Are you trading or manufacturer?
A:We are manufacture with exporting rights.
Q:How could you guarantee your quality?
A:The third inspection can be available such as ISO and 9001:2008
Q:Could you supply samples?
A:Yes,we can.
Q:What's your payment method?
A:T/T is the best payment, but also L/C is received.
Pls send your inquiry details in the below.
Click"send" now!
Audited Supplier 
){kind=link}