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TP, TFS
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Gilsonite
Hot Rolled
PRODUCTION INFORMATION
Hot-rolled products include hot-rolled steel strips and hot-rolled sheets cut from the strips, all of which were manufactured by the hot strip mill. Hot-rolled products are used for multiple purposes such as general structures, tubes & pipes, and cold rolled steel.
APPLICATIONS
Hot Rooled Steel for General Structures
Steel for general structures and welded structures are produced for steel structures, bridges, ships, and automobiles.
▶SS300, 400, 490, 540, SM400A, B, C, SM490A, B, C, SM520A, B
Atmospheric Corrosion Resistant Steel
With the addition of special elements such as P, Cu, and Ni, this steel type has enhanced corrosion and atmospheric corrosion resistant properties. It is used for the production of containers, special vehicles, and building structures.
▶SPA-H
Hot Rolled Steel for Automotive Parts
Outstanding in its drawability and weldability, this high-strength steel is used in automobile frames and wheels.
▶SAPH310, 370, 400, SPFH490, 540, 590
Hot Rolled Steel for Special Applications
This steel type includes carbon steel for general machinery, alloy steel, and tool steel. After the heat treatment process, the steel is used in a variety of machine parts.
▶SAE1017~50, S45C
Cold Rolled Steel Sheets
This cold-rolled sheets are used in many cold-rolled products, such as CR, GI, and color plates.
▶SAE1008~50, LCS200, IF
Steel for Tubes
Excellent in weldability and formability, this steel is quite versatile with its uses in structural pipes, general pipes, special pipes, and carbon steel pipes for machines.
▶SPHT1, 2, 3, 4, STK290, 400, 490
Steel for High-Pressure Gas Cylinders and Oil Well Pipes
Superior in formability and pressure resistance capacity, this steel is used for high-pressure gas containers and drilling in extremely cold regions and deep sea oil wells.
▶API5L A, X42, X60, X70
Hot Rolled Mild Steel
▶SPHC, D, E
STANDARD & APPLICATIONS
Production Range
  Thickness (mm) Width (mm) Weight (TON) Inside Diameter (mm) Outside Diameter (mm)
HR Coil 1.2~16.0 900~1650 Max 30 ton Only 762 Max 2100
Standard & Applications
Applications Standard
JIS KS Other
Hot Rolled Mild Steel SPHC,D,E SPHC,D,E A621
Rolled Steel for General Structures SS300
SS400
SS490
SS540
SS300
SS400
SS490
SS540
A36
DIN USt34-2
Rolled Steel for Welded Structures SM400
SM490
SM520
SM400
SM490
SM520
A570-40
A573-70
A633-E
Cold-rolled Steel Sheets - - SAE1008~SAE1050
LCS200
IF
Superior Atmospheric Resisting Rolled Steels SPA-H SPA-H -
Hot Rolled Carbon Steel Strip for Pipes & Tubes SPHT1,2,3,4 HRS1,2,3,4 -
Carbon Steel Tubes for General Structural Purposes STK290
STK400
STK490
STK290
STK400
STK490
-
Strip for Line Pipe - - API 5L A
API 5L X42~
API 5L X60
API 5L X70
Hot Rolled Steel Strip for Automobile Structure Use SAPH310
SAPH370
SAPH400
SAPH310
SAPH370
SAPH400
-
Hot Rolled High Strength Steel Strip with Improved Formability for Automobile Structure Use SPFH490
SPFH540
SPFH590
SPFH490
SPFH540
SPFH590
-
Carbon Steel for Machine Structural Use SM17C~SM50C S17C~S50C SAE1017~SAE1050
AISI1017~AISI1050
Chemical Composition
Designation Chemical Composition (wt %)
C Si Mn P S
SPHC
SPHD
SPHE
≤ 0.15
≤ 0.10
≤ 0.10
- ≤ 0.60
≤ 0.50
≤ 0.50
≤ 0.050
≤ 0.040
≤ 0.030
≤ 0.050
≤ 0.040
≤ 0.035
SS300
SS400
SS490
SS540
≤ 0.30 - ≤ 1.60 ≤ 0.050
≤ 0.050
≤ 0.050
≤ 0.040
≤ 0.050
≤ 0.050
≤ 0.050
≤ 0.040
SM400 A
SM400 B
SM400 C
≤ 0.23
≤ 0.20
≤ 0.18
≤ 0.35 ≤ 1.40 ≤ 0.035 ≤ 0.035
SM490 A
SM490 B
SM490 C
≤ 0.20
≤ 0.18
≤ 0.18
≤ 0.55 ≤ 1.60 ≤ 0.035 ≤ 0.035
SM 520 A
SM 520 B
≤ 0.20 ≤ 0.55 ≤ 1.60 ≤ 0.035 ≤ 0.035
SPHT1
SPHT2
SPHT3
SPHT4
≤ 0.10
≤ 0.18
≤ 0.25
≤ 0.30
≤ 0.35 ≤ 0.50
≤ 0.60
0.30 ~ 0.90
0.30 ~ 1.00
≤ 0.040 ≤ 0.040
STK290
STK400
STK490
-
≤ 0.25
≤ 0.18
-
-
≤ 0.55
-
-
≤ 1.50
≤ 0.040 ≤ 0.040
SAE1008
SAE1010
≤ 0.10
0.08 ~ 0.13
-   - -
SAE1017
SAE1022
SAE1050
0.15 ~ 0.20
0.18 ~ 0.23
0.48 ~ 0.55
- 0.30 ~ 0.60
0.70 ~ 1.00
0.60 ~ 0.90
- -
SAPH310
SAPH370
SAPH400
- - - ≤ 0.040 ≤ 0.040
SPFH490
SPFH540
SPFH590
≤ 0.09 ≤ 0.15 0.95 ~ 1.05
1.20 ~ 1.30
1.45 ~ 1.55
≤ 0.025 ≤ 0.003
API 5L A
API 5L X42
API 5L X60
API 5L X70
≤ 0.22
≤ 0.29
≤ 0.26
≤ 0.23
- ≤ 0.90
≤ 1.25
≤ 1.35
≤ 1.60
≤ 0.030 ≤ 0.003
S45C 0.42 ~ 0.48 0.15 ~ 0.35 0.60 ~ 0.90 ≤ 0.030 ≤ 0.035
Designation Chemical Composition (wt %)
C Si Mn Cu Cr Ni P S
SPA-H ≤ 0.12 0.25 ~ 0.75 0.20 ~ 0.50 0.25 ~ 0.60 0.30 ~ 1.25 ≤ 0.65 0.070 ~ 0.150 ≤ 0.040
Mechnical Composition
Designation Tensile Strength (Mpa) Elongation (%) Bending test
< 1.6 1.6 ~ 2.0 2.0 ~ 2.5 2.5 ~ 3.2 3.2 ~ 4.0 ≥ 4.0 Bending angle inside radius
< 3.2 ≥ 3.2
SPHC ≥ 270 ≥ 27 ≥ 29 ≥ 29 ≥ 29 ≥ 31 ≥ 31 180° Flat on itself T X 0.5
SPHD ≥ 270 ≥ 30 ≥ 32 ≥ 32 ≥ 35 ≥ 37 ≥ 39 - - -
SPHE ≥ 270 ≥ 31 ≥ 33 ≥ 33 ≥ 37 ≥ 39 ≥ 41 - - -
Designation Tensile Strength (Mpa) Elongation (%) Bending test
≤ 5.0 5.0 ~ 16.0 Bending angle inside radius
SS300 300 ~ 430 ≥ 26 ≥ 21 180° T X 0.5
SS400 400 ~ 510 ≥ 21 ≥ 17 180° T X 1.5
SS490 490 ~ 610 ≥ 19 ≥ 16 180° T X 2.0
SS540 ≥ 540 ≥ 15 ≥ 13 180° T X 2.0
SM400 A 400 ~ 510 ≥ 23 ≥ 18 - -
SM400 B 400 ~ 510
SM400 C 400 ~ 510
SM490 A 490 ~ 610 ≥ 22 ≥ 17 - -
SM490 B 490 ~ 610
SM490 C 490 ~ 610
SM520 A 520 ~ 640 ≥ 19 ≥ 15 - -
SM520 B 520 ~ 640
Designation Tensile Strength (Mpa) Elongation (%) Bending test
< 1.6 1.6 ~ 3.0 3.0 ~ 6.0 6.0 ~ 13.0 Bending angle inside radius
≤ 3.0 > 3.2
SPHT1 ≥ 270 ≥ 30 ≥ 32 ≥ 35 ≥ 37 180° Flat on itself T X 0.5
SPHT2 ≥ 340 ≥ 25 ≥ 27 ≥ 30 ≥ 32 180° T X 1.0 T X 1.5
SPHT3 ≥ 410 ≥ 20 ≥ 22 ≥ 25 ≥ 27 180° T X 1.5 T X 2.0
SPHT4 ≥ 490 ≥ 15 ≥ 18 ≥ 20 ≥ 22 180° T X 1.5 T X 2.0
Designation Tensile Strength (Mpa) Elongation (%) Bending test
1.6 ~ 2.0 2.0 ~ 2.5 2.5 ~ 3.15 3.15 ~ 4.0 4.0 ~ 6.3 ≥ 6.3 Bending angle inside radius
< 2.0 ≥ 2.0
SAPH310 ≥ 310 ≥ 33 ≥ 34 ≥ 36 ≥ 38 ≥ 40 ≥ 26 180° Flat on itself T X 1.0
SAPH370 ≥ 370 ≥ 32 ≥ 33 ≥ 35 ≥ 36 ≥ 37 ≥ 25 180° T X 0.5 T X 1.0
SAPH400 ≥ 400 ≥ 31 ≥ 32 ≥ 34 ≥ 35 ≥ 36 ≥ 24 180° T X 01.0 T X 1.0
Designation Tensile Strength (Mpa) Elongation (%) Bending test
Longitudinal Direction Cross Direction Bending angle inside radius
STK290 ≥ 290 ≥ 30 ≥ 25 90° 6D
STK400 ≥ 400 ≥ 23 ≥ 18 90° 6D
STK490 ≥ 490 ≥ 23 ≥ 18 90° 6D
STK540 ≥ 540 ≥ 20 ≥ 16 90° 6D
Designation Tensile Strength (Mpa) Elongation (%) Bending test
1.6 ~ 2.0 2.0 ~ 2.5 2.5 ~ 3.25 3.25 ~ 6.0 Bending angle inside radius
< 3.2 ≥ 3.2
SPFH490 ≥ 490 ≥ 22 ≥ 23 ≥ 24 ≥ 25 180° T X 0.5 T X 1.0
SPFH540 ≥ 540 ≥ 21 ≥ 22 ≥ 23 ≥ 24 180° T X 1.0 T X 1.5
SPFH590 ≥ 590 ≥19 ≥ 20 ≥ 21 ≥ 22 180° T X 1.5 T X 1.5
Designation Tensile Strength (Mpa) Elongation (%) Bending test
≤ 6.0 > 6.0 Bending angle inside radius
≤ 6.0 > 6.0
SPA-H ≥ 490 ≥ 22 ≥ 15 180° T X 0.5 T X 1.5
Designation Tensile Strength (Mpa) Elongation (%) Bending test
Bending angle inside radius
API 5L A ≥ 330
E = 625,000 A02 (A: Test Specimen)
U09 (U: Minimization of Tensile Strength(Psi))
- -
API 5L X42 ≥ 413
API 5L X60 ≥ 517
API 5L X70 ≥ 566
Available Size
※The above-mentioned contents may be changed by customers’requests or products development schedule.
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