TISCO SPP produces stainless steel tubes and pipes for various industries including petroleum, natural gas, petrochemicals, power plants, automobiles, and ships. The plant has an annual production capacity of 50,000 tons for seamless pipes and 10,000 tons for welded pipes in diameters ranging from 6-762 mm and wall thicknesses from 0.5-40 mm. Products are made from various stainless steel grades including austenitic, martensitic, ferritic, duplex, and nickel alloys. The plant has extensive production facilities including extrusion presses, rolling mills, heat treatment systems, non-destructive testing equipment, and a technology research center to ensure high quality products.

1. • TISCO SPP’s stainless steel tubes & pipes are designed for various uses
in petroleum & natural gas industry, petrochemical, power plant, nuclear
power, automobile, shipbuilding and military use, etc.

2.  The Steel Pipe Plant, covering the area of 175,000m2, with a total
investment of approximately ￥21.6 billion, have the whole process
stainless steel tubes & pipes manufacturing line. The Plant have the
largest capacity in the world.
• Products Material：
Austenitic、Martensitic、Ferritic、Duplex、
Nickel-Based Alloy
• Design Capacity of seamless pipe：
50,000 tons p.a
• Dimensional range of seamless pipe：
Φ(6～762)×(0.5～40)mm；
• Production capacity of welded pipe:
10,000 tons p.a
• Dimensional range of welded pipe ：
Φ (12.7 ～ 4800)×(1～ 50)mm

3. No. Application Steel Types
Specifications( mm) Forecast
Capacity
（t/a）Outer Diameter Wall Thickness
1 Boiler tubes
304H、347H、Super304H
310S、T91、P91、T92、
P92,etc.
Φ38－219 3.5－28 10000
2
Petroche
mical
Heat-
exchanger
tube 304L、321、316L、
Duplex、347、310S,etc.
Φ19－89 2－4.5
8000
Cracking tube,
boiler tube
Φ159－325 6－28
3 Fertilizer Industry pipe 304、321、316L、304L Φ6－762 1－40 3000
4
Petroleum and
oil-gas industry casing,
tubing & line pipe
13Cr、Super13Cr、
Duplex、Nickel base
alloys etc.
Φ73－177 5.5－13.7 10000
5
Pipe used in railway,
metallurgy, chemical
industry
Austenitic、Ferritic、
Duplex etc.
Φ6－762 1－40 10000
6 Welding steel tube
Austenitic、Ferritic、
Duplex etc.
Φ12.7－4800
1－50 5000
Products Categories

4. • With the global advanced and domestic largest AOD furnace steel and other
smelting production equipments, TISCO developed the three-step stainless
steel smelting technology based hot-metal, in addition to two-step of electric
furnace + AOD and other advanced stainless steel smelting technology.
180 tons of AOD
Refining Furnace
180 tons of DP
Converter
160 tons of Ultra-high
Power Electric Furnace
90 tons of VOD
Refining Furnace

5. • with the world`s most wide stainless steel hot-rolling mill production line,
cold-rolling production line, and the world's most thick, the domestic most
wide stainless steel plate production line.
2250mm Hot-rolling Mill 2100 Stainless Steel
Cold-rolling Mill
3300*100mm Wide
Plate Mill

6. • 1000mm roughing mill
• 1800t radial forging mill
• 1000t rapid forging mill
• Centreless barker
• bar straightener
The maximum billet provided is
550mm
Advanced billet forging and
rolling equipment

7. SMS 60MN
horizontal extruding press
Made in Germany
The most advanced hot-
extrusion equipment made by
SMS Mill, the extruded pipe
with high dimension accuracy
and compact metallographic
structure.

8. SMS KPW-75
high-speed pilgering mill
Made in Germany
SMS KPW-25
high-speed pilgering mill
Made in Germany
EZTM-350
3 rollers large-dimension
cold rolling mill
Made in Russia

9. LOI
Vacuum and N2+H2 protective atmosphere
Heat treatment system
Designed in Germany

10. GE
Automatic UT system
Designed in the U.S.
GIC
Automatic ET system
Designed in Germany

11. Continuous welding set
and UOE non-continuous
welding set
1600 ton and 1200 ton
CNC Sheet forming
machine

12. 12
The steel pipe laboratory
possesses various
mechanical and chemical
testing equipments like
tensile-test system, impact
testing machine, hardness
test machine, metallurgic
phase microscope, etc.
TISCO technology center has physics-chemistry laboratory equipped with a number
of advanced scientific research instruments.
Technology Research

14. Production Process Flow of TISCO

15. The Raw Materials --all come from parent company TISCO
TISCO Stainless steel smelting uses three-step refining process. It can
ensure high steel purity less harmful elements and other characteristics (S ≤
0.005%, P ≤ 0.020%). Through a protective atmosphere ESR, high-quality
raw material can be produced to provide high-quality stainless steel tube.
TISCO stainless steel billet smelting process

16. Extruding Line
for boiler tubes, nuclear power tubes, tubing & piping, special
shapes, Nickel-base alloy and other high-deformation-resistance
alloy
Manufacturing Process of SPP

17. 穿孔线工艺流程
Piercing Line
for general purpose tubes, low production cost and short
manufacturing circle.

18. Welding Line

20. Steel type
304、304L/H 321/316/316L/347H 2205/254SMO/904L
Specifications
OD：Φ19~ Φ89mm,
Φ89~ Φ630mm
Thickness ：2~6mm
6~40mm
Service fields
Petroleum, petrochemical, fertilizer and other fields
Implementation standards
ASME SA312、ASME SA213、EN 10216-5、GB9948-2006、
GB5310-2008、SH6601
Seamless tube production process for petrochemical

21. 2205/2507：60MN Extrusion press +Rolling mill+ Solution heat
treatment
254SMO：60MN Extrusion press +Mill/drawing
+ Solution heat treatment
Bioler tube、cracking tube:60MN Extrusion press
+CRTM350 + Chamber furnace heat treatment
904L：60MN Extrusion press + Mill/drawing + Solution heat
treatment
Seamless tube production process for petrochemical

22. Through the deformation
"piercing + drawing
expansion"and"extrusion + cold
rolling/ cold expansion", we
successfully producted Φ457 * 25,
Φ457 * 28, Φ618 * 28, Φ610 * 40
and other large diameter thick wall
pipe, for now these have reached
more than 500 tons for
petrochemical industry.
Large diameter stainless pipe

23. Produced specifications at present ：Φ57×6 Φ60×3 Φ89×5
Φ114×10 Φ127×10 Φ168×10 Φ194×12.5 in duplex S31803 and
S32750,more than 50 tons.
Petrochemical field——Duplex steel(S31803、S32750）

24.  From a strategic point, my company
and Chongqing Institute developed
super austenitic 254SMO seamless for
CNPC Iran project.
 Specifications： Φ21.3*2.11、
Φ26.7×2.77、 Φ33.4×3.38、Φ57×4
Φ60.3×3.91、 Φ60.3×5、
Φ88.9×5.49、 Φ114*6、 Φ114*9、
168*10、219*8(mm)
Petroleum field——
Super Austenitic 254SMO

25. Material 2Cr13 TG OG13Cr-2 N08028 N06985
Melting composition，%
C 0.16～0.25 ≤0.04 ≤0.030 ≤0.015
Si ≤1.00 ≤0.50 ≤1.00 ≤1.00
Mn ≤1.00 ≤0.60 ≤2.50 ≤1.00
P ≤0.035 ≤0.020 ≤0.030 ≤0.025
S ≤0.030 ≤0.005 ≤0.030 ≤0.010
Ni 4.50～5.50 29.50～32.50 Remaining
Cr 12.00～14.00 12.00～14.00 26.00～28.00 21.00～23.50
Fe Remaining Remaining Remaining 18.00～21.00
Cu ≤0.20 0.60～1.40 1.50～2.50
Co ≤5.00
W ≤1.50
Nb ≤0.50
Mo 1.80～2.50 3.00～4.00 6.00～8.00
Nb+Ta
Petroleum pipe chemical composition from SPP

26. Compared products quality (typical) with foreign counterparts enterprises, the
main quality characteristics is roughly equal.
太钢 日本住友
Cb+Ta 0.9 0.88
S 0.001 0.001
P 0.02 0.024
晶间腐蚀（A262-E） 完好 完好
夹杂物级别 四类均为0.5级 四类均为0.5级
Rp0.2（MPa） 315 292
Rm（MPa） 580 562
A% 65 72
硬度（HRB） 85 84
晶粒度 5.5 6.3
项目
关键元素
力学性能
Compare to Japan's Sumitomo at TP347H
太钢 日本住友
S 0.001 0.001
P 0.02 0.024
晶间腐蚀（A262-E） 完好 完好
夹杂物级别 四类均为0.5级 四类均为0.5级
Rp0.2（MPa） 350 289
Rm（MPa） 600 580
A% 60 68
硬度（HRB） 87 83
晶粒度 6 6.3
项目
关键元素
力学性能
太钢 西班牙
S 0.001 0.002
P 0.018 0.026
晶间腐蚀（A262-E） 完好 完好
夹杂物级别 四类均为0.5级 四类均为0.5级
Rp0.2（MPa） 275 222
Rm（MPa） 600 537
A% 59.5 62
项目
关键元素
力学性能
Compares to Spain TR at 321 Compares to Spain TR at 316L
太钢 西班牙
S 0.001 0.002
P 0.018 0.026
晶间腐蚀（A262-E） 完好 完好
夹杂物级别 四类均为0.5级 四类均为0.5级
Rp0.2（MPa） 340 280
Rm（MPa） 580 540
A% 59.5 60
项目
关键元素
力学性能
Compares to Japan's Sumitomo at TP304H

27. Inner and outer Seamless
surfaces smooth (Ra 1.0 μm)
304 pitting corrosion
（6%FeCl3+0.05mol/L of
HCl，35℃，24 hour）
15.58
14.65
0 3 6 9 12 15
A厂
太钢
平均腐蚀率g/(m2·h)
TP347H expanding
rate :50%, taper
reaming:60 °
Good cold performanceGood corrosion resistance Excellent surface quality
Small number of inclusions, the
maximum size of less than 10μm[O] Content compared
Physical quality of the main products
Compared products quality with foreign counterparts enterprises, the main quality
characteristics is roughly equal.