1.low energy consumption, good plastic processing, low deformation resistance, work hardening is not obvious, easy rolling, reducing the energy consumption required for metal deformation.
2. Hot rolling usually adopts large ingot and large reduction rolling, with fast production rhythm and large output, which creates conditions for large-scale production.
3, through hot rolling the cast structure into the processing structure, through the transformation of the structure to greatly improve the plasticity of the material.
4, the characteristics of the rolling method determines the anisotropy of the properties of the rolled sheet, one is the longitudinal, transverse and high direction of the material has obvious performance differences, the second is the existence of deformation texture and recrystallization texture, there is a clear direction in the punching performance.
Hot Rolled Steel Plate can used in buildings, Bridges, ships, vehicles and other general structural parts.

A variety of surface treatments are available, and can also be customized according to specific drawings.
If you are interested in our products, please feel free to contact me, I will provide you with the best price and the best quality service.Wait your inquiry!
type | Chinese enterprise standard | fairly international standard | illustrate | ||
Standard | Grade | Standard | Grade | ||
Hot rolled low carbon steel | Q/BQB 302 | SPHC | JIS G3131 | SPHC | Suitable for the manufacture of cold-formed parts. |
SPHD | SPHD | ||||
SPHE | SPHE | ||||
StW22 | DIN 1614 | StW22 (DD11) | |||
StW23 | (EN10111) | STW23 (DD12) | |||
StW24 | StW24 (DD13) | ||||
general structural steel | Q/BQB 303 | SS 330 | JIS G3101 | SS 330 | It is used for general structural parts such as buildings, bridges, ships, and vehicles. |
SS400 | SS400 | ||||
SS 490 | SS 490 | ||||
SS 540 | SS 540 | ||||
St 33 | DIN 17100 | St 33 (S185) | |||
St 37-2 | (EN10025) | St 37-2 (S235JR) | |||
St 37-3 | St 37-3 (S235JO) | ||||
St 44-2 | St 44-2 (S275JR) | ||||
St 50-2 | St 50-2 (E295) | ||||
St 52-3 | St 52-3 (S355JO) | ||||
steel for welded structures | Q/BQB 303 | SM400A | JIS G3106 | SM400A | It is used for structural parts requiring excellent welding performance, such as buildings, bridges, ships, vehicles, oil tanks, and engineering machinery. |
SM400B | SM400B | ||||
SM400C | SM400C | ||||
SM490A | SM490A | ||||
SM490B | SM490B | ||||
SM490C | SM490C | ||||
SM490YA | SM490YA | ||||
SM490YB | SM490YB | ||||
SM520B | SM520B | ||||
SM520C | SM520C | ||||
B520JJ | --- | --- | Concrete mixer truck cylinder with hot rolled steel plate. | ||
Welten590RE | NSC | Welten590RE | Weldable high-strength steel plates are used for pressure vessels, oil tanks, construction machinery, mining machinery, pressure water pipes, etc. | ||
B590GJA | --- | --- | |||
B590GJB | |||||
Mechanical structural steel | Q/BQB 303 | C22 | DIN 17200 | C22 | It is used for mechanical structural parts after cutting and other processing and heat treatment. |
C35 | JIS G4501 | C35 | |||
S20C | S20C | ||||
S35C | S35C | ||||
Fine Grain Structural Steel | --- | StE255 | DIN 17102 | StE255 | Fine grained structural steel suitable for welding. |
StE355 | StE355 | ||||
steel strip for steel pipe | Q/BQB 303 | SPHT1 | JIS G3132 | SPHT1 | For welding steel pipes. |
SPHT2 | SPHT2 | ||||
SPHT3 | SPHT3 | ||||
Automotive Structural Steel | Q/BQB 310 | SAPH 310 | JIS G3113 | SAPH 310 | Used for automotive structural parts such as automotive frames and wheels that require formability. |
BZJ 311 | SAPH 370 | SAPH 370 | |||
BZJ 312 | SAPH 400 | SAPH 400 | |||
BZJ 313 | SAPH 440 | SAPH 440 | |||
BZJ 314 | QStE 340TM | SEW 092 | QStE 340TM (---) | Hot-rolled granular steel for cold deformation, used for structural parts such as automobile beams that require good cold forming performance and high or high strength requirements. | |
QStE 380TM | (EN10149-2) | QStE 380TM (---) | |||
QStE 420TM | QStE 420TM (S420MC) | ||||
QStE 460TM | QStE 460TM (S460MC) | ||||
QStE 500TM | QStE 500TM (S500MC) | ||||
B330CL | --- | --- | It has good cold forming performance, and is used for wheel mesh and spokes of automobile rolling wheels. | ||
B380CL | |||||
B420CL | |||||
B440QZr | --- | --- | It is used in the manufacture of automobile transmission shafts. | ||
B480QZR | |||||
B320L B550L | --- | --- | Used for automobile girders and beams. | ||
B510L B420L | |||||
B510DL | |||||
Boiler and pressure vessel steel | Q/BQB 320 | HII | DIN 17155 (EN10028-2) | HII (P265GH) | In addition to ensuring normal temperature performance, it also guarantees mechanical properties at higher temperatures, and is suitable for steam boiler equipment, pressure vessels with higher working temperatures and similar structural parts. |
19Mn6 | 19Mn6 (P355GH) | ||||
Q/BQB 320 | SB410 | JIS G3103 | SB410 | ||
Q/BQB 321 | B440HP | JIS G3116 | SG295 | Steel plates for welding gas cylinders. | |
B490HP | SG325 | ||||
steel for hull structure | Q/BQB 330 | A | LR,BV | A | It can be supplied according to the specifications of the classification societies of various countries. |
B | GL, DNV | B | |||
D. | ABS | D. | |||
Atmospheric corrosion resistant steel | Q/BQB 340 | WTSt37-2 | SEW087 (EN10155) | WTSt37-2 (S235J2W) | It is used to manufacture interception and fuel for structural parts such as containers, railway vehicles, oil derricks, and construction machinery that require atmospheric corrosion resistance. |
WTSt52-3 | WTSt52-3 (S355J2G1W) | ||||
NAW 400 | NSC | NAW 400 | |||
NAW 490 | NAW 490 | ||||
B460NQR | --- | --- | |||
B490NQR | |||||
Sulfuric acid corrosion resistant steel | S-ten2 | NSC | S-ten2 | Used in the manufacture of containers for hydrogen sulfide-containing media, etc. | |
seawater corrosion resistant steel | Mariloy G41A | Mariloy G41A | Used for structural components such as oil production platforms, ships, and harbor buildings. | ||
Mariloy S50A | Mariloy S50A | ||||
high weather resistance | BZJ342 | B480GNQR | --- | --- | Used in the manufacture of vehicles, containers, construction and |
structural steel | other structural parts. | ||||
Through-thickness properties of hot rolled steel sheets | Q/BQB 350 | Z15 | --- | --- | The thickness direction performance of the steel plate has good lamellar tear resistance performance, and is used for offshore oil production platforms and other structural parts that require thickness performance. |
Z25 | |||||
Z35 | |||||
case hardened steel | Q/BQB 360 | C10 | DIN 17210 | C10 | High-purity low-carbon steel is used for surface carburizing or nitriding followed by quench hardening to manufacture structural parts with high hardness and wear resistance on the surface and high toughness on the core. |
C15 | C15 | ||||
S09CK | JIS G4051 | S09CK | |||
S15CK | S15CK | ||||
High toughness pipeline steel | BZJ 371 | X60RL | API 5L | X60 | High-toughness pipeline steel hot-rolled wide-band steel for spiral welding production of oil pipelines |
X70RL | X70 | ||||
straight seam welding | BZJ 372 | J55 | API 5CT | J55 | For the manufacture of straight seam welded oil casing |
Steel for casing | |||||
Tread plate | BZJ 390 | BCP 270 | --- | --- | Lentil shaped checkered steel plate |
BCP 340 | |||||
BCP 400 | |||||
Hot continuous rolled wide steel for bicycles | BZJ 304 | SPHT1Z,SPHT2Z | --- | --- | Used in the manufacture of bicycle upper, lower, rear joints, front wishbones, front faceplates, chain rolling handlebar cross tubes, center shafts and other parts |
SPHT3Z, SPHDZ | |||||
SM50BZ,SM53BZ | |||||
For pipeline | GB14164 | S205,S240 | API 5L | Grade A,B | Oil and natural gas pipeline |
hot rolled coil | S315 | X42,X46,X52 | |||
S290,S360,S385 | X56,X60,X65 | ||||
S415,S450,S480 | X70 |


The hot-rolled steel plate products produced by Zhengde have excellent properties such as high strength, good toughness, easy processing and good weldability, so they are widely used in manufacturing industries such as ships, automobiles, bridges, construction, machinery, and pressure vessels.
Good quality and professional service help us gain many good reputation all over the world.We have a lot of clients in many different places and we have stable relationships, some of whom have become friends with us. I hope to cooperate with you!
I'm here for whatever you may need and look forward to hearing from you soon.
Spot inventory of steel plates with various material properties: ordinary carbon structural steel plates, low alloy steel plates, alloy steel plates, wear-resistant steel plates, steel plates for cold forming, structural steel plates, automotive structural steel plates, steel plates for corrosion-resistant structures, mechanical structures Steel plates, steel plates for welded gas cylinders and pressure vessels, steel plates for pipelines, etc.


We have nearly 20 years of experience in steel, and the only thing we insist on is that the devil is in the details.
The dimensional accuracy is high,the plate shape can be changed to a certain extent, thereby reducing the deviation of unevenness. Improved surface finish for enhanced appearance
Energy saving and efficiency improvement



Quality first: production and inspection in strict accordance with production standards;
Provide on-site video or SGS inspection before loading,in order to ensure the quality and quantity of products and make customers rest assured.This is also the tradition and characteristic of our factory;
Price advantage: our price is absolutely competitive, because we produce and sell ourselves, saving a lot of unnecessary costs. We also have the power to do that;
Transaction security:a
variety of payment options are available;
After-sales guarantee: the customer's problem is our problem,our goal is win-win, customers receive satisfactory products and we get an excellent returned customers;After receiving the product satisfaction, submit the praise, the next cooperation to give 1-3% additional discount extra;
Long-term cooperation: quality assurance, price advantage, sincere service can last for a long time.
Shandong Zhengde Metal Manufacturing Co., Ltd. is a production and sales company integrating hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, section steel, steel pipes, steel wires, metal mesh, stainless steel, aluminum, copper and other metal products integrated large enterprises. Five production and sales bases have been formed in Binzhou, Liaocheng, Wuxi, Tianjin, Jinan and Tai'an, with more than 100 production lines, 4 nationally recognized laboratories, 2 technical engineering centers, and 5 enterprise technology centers. Products are exported to more than 50 countries and regions such as North America, South America, Europe, Africa, Oceania, Middle East, and Southeast Asia.
FAQ
Q1:Can you send samples?
A:Of course, we can provide customers with free samples and express shipping service to all over of the world.
Q2:What product information do I need to provide?
A:Please kindly provide the grade,length, width, thickness, surface treatment requirement should you have and quantities you need to purchase.
Q3:It's my first time to import steel products, can you help me with it?
A:Sure,we have agent to arrange the shipment, we will do it together with you.
Q4:What ports of shipment are there?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.
Q5:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
Q6:What is your terms of payment ?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.
Q7:Do you provide custom made Products service?
A: Yes,if you have your own design , we can produce according to your specification and drawing.
Q8:What are the certifications for your products?
A:We have ISO 9001, MTC, third parties' inspections are all available such SGS, BV ect.
Q9:How long does your delivery time take?
A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.
Q10: How many countries you already exported to?
A:We have exported to America, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya, Ghana,somalia and other African countries.Our export experience is rich, we familiar with different market demands, can help customers avoid a lot of trouble.
Q11:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q12:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed and customers will be well evaluated.