HRC

Utilizing our excellent manufacturing equipment and honored technology, supported by our rich experience and never-ceasing endeavor of development, MRM STEEL manufactures a wide range of Hot-Rolled Steel Sheets and Coils in accordance with Japanese Industrial Standards (JIS), the standards of other countries, and our own strict standards. Our Hot-Rolled Steel Sheets and Coils are applied to a wide range of applications such as automobiles, electrical appliances, construction materials, containers, and steel pipes, and receive high acclaim from our customers for its excellent quality. We are committed to meet our customers’ requirements of quality as well as on-time delivery and offer technical consultations and services for applications of our steel products. We deeply appreciate your continued support and encouragement.

Types and uses
Manufacturing process

GENERAL STRUCTURE (SS Grades)

WELDED STRUCTURE (SM Grades)

AUTOMOTIVE STRUCTURAL (SAPH Grades)

WEATHER RESISTANT (SPA-H)

GAS CYLINDERS (SG Grades)

JIS G 3101 (SS400, SS490) Description: This is the most widely consumed Hot Rolled Steel. Grade SS400 is the industry standard for general construction engineering. It offers a reliable balance of strength and ductility for applications where advanced weldability is not the primary concern. Used For: Civil engineering, bridge components, housing frames, machinery bedplates, and general fabrication.

Main uses Technical data Add to quote basket

Utilizing our excellent manufacturing equipment and honored technology, supported by our rich experience and never-ceasing endeavor of development, MRM STEEL manufactures a wide range of Hot-Rolled Steel Sheets and Coils in accordance with Japanese Industrial Standards (JIS), the standards of other countries, and our own strict standards. Our Hot-Rolled Steel Sheets and Coils are applied to a wide range of applications such as automobiles, electrical appliances, construction materials, containers, and steel pipes, and receive high acclaim from our customers for its excellent quality. We are committed to meet our customers' requirements of quality as well as on-time delivery and offer technical consultations and services for applications of our steel products. We deeply appreciate your continued support and encouragement.

Specification

HRC
GENERAL STRUCTURE (SS Grades)
DESCRIPTION

PRODUCT SPECIFICATIONS

Category	Standard	Grade	Yield Strength(MPa)	Tensile Strength(MPa)	Elongation(Min %)	Typical Applications / Used For
COMMERCIAL(Forming)	JIS G 3131	SPHC	–	≥270	≥27	General fabrication, Pipe making base.
COMMERCIAL(Forming)	JIS G 3131	SPHD	–	≥270	≥30	Drawing quality (Stamping parts).
COMMERCIAL(Forming)	JIS G 3131	SPHE	–	≥270	≥32	Deep drawing (Gas tanks, automotive).
PIPES & TUBES(Carbon Steel)	JIS G 3132	SPHT1	–	≥270	≥30	Water pipes, general tubes.
PIPES & TUBES(Carbon Steel)	JIS G 3132	SPHT2	–	≥340	≥25	Structural pipes, scaffolding.
PIPES & TUBES(Carbon Steel)	JIS G 3132	SPHT3	–	≥410	≥20	High pressure tubes.
GENERAL STRUCTURAL	JIS G 3101	SS330	≥205	330−430	≥26	Light structures.
GENERAL STRUCTURAL	JIS G 3101	SS400	≥245	400−510	≥21	Most Common: Buildings, Bridges.
GENERAL STRUCTURAL	JIS G 3101	SS490	≥285	490−610	≥19	Heavy machinery bases.
GENERAL STRUCTURAL	JIS G 3101	SS540	≥400	≥540	≥16	High strength structural members.
WELDED STRUCTURAL	JIS G 3106	SM400A	≥245	400−510	≥23	Welded structures (Bridges).
WELDED STRUCTURAL	JIS G 3106	SM490A	≥325	490−610	≥22	High strength welded structures.
WELDED STRUCTURAL	JIS G 3106	SM490YA	≥365	490−610	≥19	Heavy duty welded parts.
AUTOMOTIVE STRUCTURAL	JIS G 3113	SAPH310	≥185	≥310	≥33	Frames, complex forming.
AUTOMOTIVE STRUCTURAL	JIS G 3113	SAPH370	≥225	≥370	≥32	Automotive wheels.
AUTOMOTIVE STRUCTURAL	JIS G 3113	SAPH400	≥255	≥400	≥30	Structural frames, chassis.
AUTOMOTIVE STRUCTURAL	JIS G 3113	SAPH440	≥305	≥440	≥28	Heavy load components.
GAS CYLINDERS(Pressure)	JIS G 3116	SG255	≥255	≥400	≥28	LPG Collars, low pressure tanks.
GAS CYLINDERS(Pressure)	JIS G 3116	SG295	≥295	≥440	≥26	Household Gas Cylinders (Body).
GAS CYLINDERS(Pressure)	JIS G 3116	SG325	≥325	≥490	≥22	High pressure vessels.
WEATHERRESISTANT	JIS G 3125	SPA-H	≥355	≥490	≥22	Shipping Containers (Anti-corrosion).

MRM Steel specializes in supplying high-quality Hot Rolled Coil (HRC), ensuring consistent material properties and strict adherence to international standards. For detailed consultation on specific grades and quotations, please contact our Sales Department directly.

Please find the detailed technical specifications below:

Specification

HRC
GENERAL STRUCTURE (SS Grades)
ORDERING INFORMATION

Technical Specification

No.	Item	Specification
1	Standards	ASTM A36 / A572, JIS G3101, EN 10025
2	Thickness	1.2 – 25.0 mm
3	Width	900 – 2000 mm
4	Coil Weight	Up to 30 MT
5	Surface	Black
6	MOQ	100 MT
7	Inspection	MTC EN 10204 3.1, SGS / BV / TUV

Packaging & Delivery

Export seaworthy packaging
Delivery time: 20–35 days
Shipment: bulk vessel or container

Catalog

View all

GENERAL STRUCTURE (SS Grades)

HRC Flyer

WELDED STRUCTURE (SM Grades)

Reheating furnace

Steel slabs, which are produced in a continuous casting plant, are ﬁrst conditioned in a reheating furnace before transferring to the steel rolling works. In order to remove the thick scale which can form on the surface of a hot slab, Vertical Scale Breakers (VSB) are utilized.

Roughing Mill

In this process, slabs whose surface scale share been removed are made into rolled materials with the proper shape, thickness, and width. In the entry and exit area of the roughing mill, an edger rolls the strip in the width direction using an Automatic Width Control (AWC) system.

Finishing Mill

The purpose of ﬁnishing rolling is to adjust the thickness and width of a coil to the speciﬁed dimensions and to produce a smooth surface and shape at a desired ﬁnishing temperature appropriate appropriate FOR its intended use. its intended use. Our up-to-date equipment, including Work Roll Shift Mills and On-line Roll Grinders (ORG) enhance plant productivity and improve the quality of the ﬁnished coils by controlling the thickness deviation.

Run-Out Table

After the ﬁnishing mill, the strip passes to the run-out table where it is coiled. While being rolled down the table, the strip is sprayed with water to cool water to cool to the proper temperature to the proper temperature for coiling.

Skin Pass Mill

During the skin pass rolling process, various inspection procedures involving surface defect involving surface defect, dimension measurement, and etc., dimension measurement, etc., are conducted in order to improve the improve the shape, mechanical properties.

How HRC Steel is Made