Q195 Q345A Carbon steel coils
Diverse Production Types – Available in both hot-rolled and cold-rolled coils to meet different processing and application requirements.
High-Quality Grades – Manufactured from widely used and reliable grades such as SPCC, SPCD, SPCE, ST12-15, DC01-06, Q235B, Q345B, SPHC, 510L, Q345A, and Q345E.
Strong Material Versatility – Suitable for various industrial applications due to the wide range of mechanical properties offered by different grades.
Controlled Manufacturing Process – Cold-rolled coils are produced below the recrystallization temperature, ensuring precision, better surface quality, and enhanced performance.
Product Introduction
Carbon steel coils can be divided into hot-rolled coils and cold-rolled coils according to the production process. Cold-rolled coils are made of hot-rolled coils and rolled below the recrystallization temperature. Common grades are: SPCC, SPCD, SPCE, ST12-15, DC01-06. Common materials are Q235B, Q345B, SPHC, 510L, Q345A, Q345E, etc.
Classification of hot rolled coils:
Hot-rolled coils can be divided into: straight hair coils and finishing coils (divided coils, flat coils, slit coils);
According to different materials and properties, it can be divided into: ordinary carbon structural steel, low alloy steel, alloy steel;
According to different uses, it can be divided into: cold forming steel, structural steel, automobile structural steel, corrosion-resistant structural steel, mechanical structural steel, welded gas cylinder and pressure vessel steel, pipeline steel, etc.
Product Details
Corresponding grades and uses of different types of hot rolled coils：
Type | International Standard Number | Grade | Use |
Hot rolled mild steel | JIS G3131 | SPHC | Suitable for manufacturing cold-formed parts. |
SPHD | |||
SPHE | |||
DIN 1614（EN10111） | STW22(DD11) | ||
STW23(DD12) | |||
STW24(DD13) | |||
General structural steel | JIS G3101 | SS 330 | For general structural parts such as buildings, bridges, ships, vehicles, etc. |
SS 400 | |||
SS 490 | |||
SS 540 | |||
DIN 17100 (EN10025) | St 33(S185) | ||
St 37-2(S235JR) | |||
St 37-3(S235JO) | |||
St 44-2(S275JR) | |||
St 50-2(E295) | |||
St 52-3(S355JO) | |||
Welded structural steel | JIS G3106 | SM400A | Used for structural parts that require excellent welding performance such as buildings, bridges, ships, vehicles, oil tanks, construction machinery, etc. |
SM400B | |||
SM400C | |||
SM490A | |||
SM490B | |||
SM490C | |||
SM490YA | |||
SM490YB | |||
SM520B | |||
SM520C | |||
NSC | Welten590RE | Weldable high-strength steel plates for pressure vessels, oil tanks, construction machinery, mining machinery, pressure water pipes, etc. | |
Steel for mechanical structures | DIN 17200 | C22 | For mechanical structural parts used after cutting and other processing and heat treatment. |
JIS G4501 | C35 | ||
—— | S20C | ||
Fine grain structural steel | DIN 17102 | StE255 | Fine grain structural steel suitable for welding. |
StE355 | |||
Steel strip for steel pipe | JIS G3132 | SPHT1 | For welded steel pipes. |
SPHT2 | |||
SPHT3 | |||
Steel for automobile structure | JIS G3113 | SAPH 310 | Used for automotive structural parts such as automotive frames and wheels that require formability and processability. |
SAPH 370 | |||
SAPH 400 | |||
SAPH 440 | |||
SEW 092 (EN10149-2) | QStE 340TM（---） | Hot-rolled pellet steel for cold deformation, used for structural parts such as automobile girders that require good cold forming properties and have high or high strength requirements. | |
QStE 380TM（---） | |||
QStE 420TM（S420MC） | |||
QStE 380TM（S460MC） | |||
QStE 500TM（S500MC） | |||
Steel for boilers and pressure vessels | DIN 17155 (EN10028-2) | HII (P265GH) | In addition to guaranteeing normal temperature performance, it also guarantees mechanical properties at higher temperatures, suitable for steam boiler equipment, pressure vessels with higher working temperature and similar structural parts. |
19Mn6(P355GH) | |||
JIS G3103 | SB410 | ||
JIS G3116 | SG295 | Welded steel plates for gas cylinders. | |
SG325 | |||
Steel for hull structure | LR,BV | A | Available according to national specifications. |
GL,DNV | B | ||
ABS | D | ||
Atmospheric corrosion resistant steel | SEW087 (EN10155) | WTSt37-2(S235J2W) | It is used to manufacture structural parts that require resistance to atmospheric corrosion, such as containers, railway vehicles, oil derricks, and construction machinery. |
WTSt52-3(S355J2G1W) | |||
NSC | NAW 400 | ||
NAW 490 | |||
Sulfuric acid corrosion resistant steel | S-ten2 | Containers for the manufacture of hydrogen sulfide-containing media, etc. | |
Seawater corrosion resistant steel | Mariloy G41A | Used for structural parts such as oil production platforms, ships, seaport buildings, etc. | |
Mariloy S50A | |||
Case hardened steel | DIN 17210 | C10 | High-purity low-carbon steel is used for surface carburizing or nitriding and then quenching and hardening to manufacture structural parts with high hardness on the surface, wear resistance and high toughness in the core. |
C15 | |||
JIS G4051 | S09CK | ||
S15CK | |||
High toughness pipeline steel | API 5L | X60 | For the production of spiral welded pipes, high toughness pipeline steel for oil pipelines, hot-rolled wide-band steel. |
X70 | |||
Steel for straight seam welded casing | API 5CT | J55 | For manufacturing straight seam welded oil casing. |
Hot rolled coil for pipeline | API 5L | Grade A,B | Oil and gas pipelines. |
X42,X46,X52 | |||
A56,X60,X65 | |||
X70 |
Hot Rolling Process Flow Chart
Advantages of HRC
Hot rolling can destroy the casting structure of the ingot, refine the grain of the steel, and eliminate the defects of the microstructure, so that the steel structure is dense and the mechanical properties are improved. This improvement is mainly reflected in the rolling direction, so that the steel is no longer isotropic to a certain extent; the bubbles, cracks and porosity formed during casting can also be welded under the action of high temperature and pressure. Therefore, the hot rolled coil has excellent properties such as high strength, good toughness, easy processing and good weldability.
Custom Made
FAQ
Q: About the price of the product
A: Due to the rise and fall of raw material prices, as well as factors such as the national power restriction policy, product prices will also fluctuate. Welcome to contact us to get the latest product price.
Q: Can you arrange shipment?
A: Of course, we have multiple warehouse locations as well as regular forwarders, and can get the best price from most shipping companies. Provide professional transportation services.
Q: How long will the delivery take?
A: Products that are in stock or only need simple processing, generally 5-15 days. If there is no stock, according to the required product quantity and the usual production time of this product, our professional sales staff will give you an approximate delivery time. According to past experience, in most cases, the delivery time will not exceed 45 days.
Q: What services do you provide?
A: 1. Provide samples, including conventional steel products and some customized steel structure products;
2. Support third-party product quality testing and provide various certificates
3. Provide pick-up and drop-off customer inspection service
4. Provide customized steel structure service
5. Provide simple steel processing, such as cutting, drilling, galvanizing, polishing and other services
6. Provide one-stop service, from product production to product transportation.
7. Provide 24 hours online service
Q: Do you provide after-sales service?
A: Yes, our company is committed to reaching long-term and friendly cooperation with customers. If you encounter any problems, please feel free to contact us.
Q: How can I get your quotation as soon as possible?
A: You can contact us through various contact channels on the website, such as: phone number, email, WhatsApp, WeChat, etc. We will reply within one day. When you contact us, you can provide us with the product specifications you need, such as size, quantity, material, drawings and other information. In this way, we will be able to provide you with the most accurate product quotation immediately.
