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Heat exchangers are vital components in numerous process plants. With an increasing focus on operating economy and safety, the benefits achieved from baseline inspection and condition monitoring are evident.
LSIs heat exchanger tube provide a safety and economic way for clients focus on producing high-quality heat exchange products.

* Nuclear Industr
*Chemical Industry
*Petrochemical Industry
*HVAC (Heating Ventilation Air Conditioning), Refrigeration
*Food and Beverages
*Power Generation
 
Heat Exchanger Tubing for Austenitic Stainless Steel
ASTM/ASME JIS En DIN C Cr Ni Mo N Others Remark
TP304L SUS304L 1.4307 X2CrNi18-9 0.030 17.5~19.5 8.0~10.0   Max:0.1   Straight/U
Bend
TP304L SUS304L 1.4306 X2CrNi19-11 0.030 18.0~20.0 10.0~12.0   Max:0.11   Straight/U
Bend
TP304LN SUS304LN 1.4311 X2CrNiN18-10 0.035 18.0~20.0 8.0~11.0   0.10~0.16   Straight/U
Bend
TP310S SUS310S 1.4842 X6CrNi25-20 0.080 24.0~26.0 17.0~23.0   0.15~0.35   Straight/U
Bend
TP316L SUS316L 1.4404 X2CrNiMo
17-12-2
0.035 16.0~18.0 10.0~15.0 2.00~3.00     Straight/U
Bend
TP316L SUS316L 1.4436 X3CrNiMo
17-13-3
0.050 16.5~18.5 10.5~13.0 2.50~3.00 Max:0.11   Straight/U
Bend
TP316LN SUS316LN     0.035 16.0~18.0 11.0~14.0 2.00~3.00 0.10~0.16   Straight/U
Bend
TP317L SUS317L 1.4438 X2CrNiMo
18-15-4
0.035 18.0~20.0 11.0~15.0 3.00~4.00     Straight/U
Bend
TP321 SUS321 1.4541 X6CrNiTi18-10 0.080 17.0~20.0 9.00~13.0     Ti: 4*C~0.60 Straight/U
Bend
TP347 SUS347 1.4550 X6CrNiNb
19-10
0.080 17.0~20.0 9.00~13.0     Cb+Ta:10*C~1.00 Straight/U
Bend
N08904 904L 1.4539 X1NiCrMoCu
25-20-5
0.020 19.0~23.0 23.0~28.0 4.0~5.0   Cu:1.00~2.00 Straight/U
Bend
S30815 Alloy 253
MA/F45
1.4835   0.05~
0.10
20.0~22.0 10.0~12.0   0.14~0.20   Straight/U
Bend
S31254 Alloy 254SMo 1.4547 X1CrNiMoCuN
20-18-7
0.020 19.5~20.5 17.5~18.5 6.0~6.5 0.18~0.22 Cu:0.50~1.00 Straight/U
Bend
 
Heat Exchanger Tubing for Ferritic or Martenitic Stainless Steel
ASTM/ASME JIS En DIN C Cr Ni Mo N Others Remark
TP410 SUS410 1.4006 X12Cr13 0.150 11.5~13.5         Straight/U
Bend
TP405 SUS405     0.080 11.5~14.5 MAX.0.50     Al:0.10~0.30 Straight/U
Bend
TP430 SUS430 1.4016 X6CrNiTi12 0.120 16.0~18.0         Straight/U
Bend
TP439   1.4510 X3CrTi17 0.070 17.0~19.0 MAX.0.50   0.04 Ti:0.20+4
(C+N)~1.10
Straight
S44400 QS192 1.4521 X2CrMo
Ti18-2
0.025 17.5~19.5 MAX.1.00 1.75~2.50 MAX.0.035 Ti+Cb:0.20+4
(C+N)~1.0
Straight
 
Heat Exchanger Tubing for Other Material
ASTM/ASME JIS En DIN C Cr Ni Mo N Others Remark
N10276 QA C276 2.4819 X12Cr13 0.010 14.5~16.5 Balance 15.0~17.0     Straight/U
Bend
N06455   2.4610   0.010 14.0~18.0 Min.65 14.0~17.0   Ti: MAX.0.70 Straight/U
Bend
N06600 NCF600   NiCr15Fe 0.150 14.0~17.0 Min.72     Cu:MAX.0.50 Straight/U
Bend
N06625   2.4856     20.0~23.0 Min.58 8.0~10.0   Cu:MAX.0.50 Straight
N04400 QA625 2.4360 NiCu30 0.300 17.5~19.5 Min.63     Cu:28.0~34.0 Straight/U
Bend
TI GR2 QA400 3.7035   0.100       0.030 Ti:Residual Straight/U
Bend
T5       0.150 4.0~6.0   0.45~0.65     Straight/U
Bend
T9       0.150 8.0~10.0   0.90~1.10     Straight/U
Bend
T11       0.05~0.15 1.00~1.50   0.44~0.65     Straight/U
Bend
T91       0.08~0.12 8.00~9.50   0.85~1.05     Straight/U
Bend
 
UNS Tensile Strength
Min, Mpa
Yield Strength
Min, Mpa
Elongation in 2INCH.
Or 50mm Min, %
Hardness Max,
HRC
TP304L 485 170 35 90HRB
TP304L 485 170 35 90HRB
TP304LN 515 205 35 90HRB
TP310S 515 205 35 90HRB
TP316L 485 170 35 90HRB
TP316L 485 170 35 90HRB
TP316LN 515 205 35 90HRB
TP317L 515 205 35 90HRB
TP321 515 205 35 90HRB
TP347 515 205 35 90HRB
N08904 490 216 35 90HRB
S30815 600 310 40 95HRB
S31254 675 310 35 96HRB
TP410 415 205 20 90HRB
TP405 415 205 20 90HRB
TP430 415 240 20 90HRB
TP439 415 205 20  
S44400 415 275 20  
N10276 690 283 40  
N06455 783 365 55  
N06600 500 180 35 185HB
N06625 760 345 30 220HB
N04400 480 170 35  
TI GR2 345 170Mpaܦ0.2310Mp a 24  
T5 415 205 30 89HRB
T9 415 205 30 89HRB
T91 585 415 20 25HRC
 
ASTM A213/ASME SA213 Seamless ferritic and austenitic alloy steels boiler superheater, and heat-exchanger tubes
ASTM A249/ASME SA249 Welded austenitic steel boiler, superheater, heat-exchanger, and condenser tubes
ASTM A268/ ASME SA268 Seamless and welded ferritic/martensitic stainless steel tubing for general service
ASTM A688 Welded austenitic stainless steel feedwater heater tubes
ASTM A789, ASME SA789 Seamless and welded ferritic/austenitic stainless steel tubing for general service
ASTM A269, ASME SA269 Seamless and welded austenitic stainless steel tubing for general service
ASTM A803 Welded ferritic stainless steel feed water heater tubes
ASTM B163/ASME SB163 Seamless nickel and nickel alloy condenser and heat exchanger tubes
ASTM B165/ASME SB165 Nickel copper alloy (UNS N04400)* seamless pipe and tube
ASTM B167/ASME SB167 Nickel chromium iron alloys (UNS N06600, N06601, and N06690) seamless pipe
and tubes
ASTM B338/ASME SB338 Seamless and welded titanium and titanium alloy tubes for condensers and heat
Exchangers
ASTM B704/ASTM B705 Welded UNS N06625 and UNS N08825 alloy tubes / Nickel alloy (UNS N06625 AND
N08825) welded pipe
EN10216-5 Seamless steel tubes for pressure purposes - stainless steel tubes
DIN 17175 Seamless tubes of heat-resistant steels - technical conditions of delivery
DIN 17459 Seamless circular high-temperature austenitic steel tubes - technical delivery
Conditions
DIN 28179 Steel U-tubes for tubular heat exchangers - technical delivery conditions
DIN 28180 Seamless steeltubes for tubular heat exchangers - dimensions, dimensional deviations and
Materials
DIN28181 Welded steel tubes for tubularheat exchangers - dimensions, dimensional deviations and
Materials
GOST 11017 Steel seamless tubes for high pressure service - technical conditions
JIS G3455 Carbon steel pipes for high pressure service
JIS G3462 Alloy steel boiler and heat-exchanger tubes
JIS G3463 Stainless steel boiler and heat-exchanger tubes
JIS H4631 Titanium pipes and tubes for ordinary piping
 
U-BENDING
U-BENDING U-TUBE HEAT EXCHANGERS COMPRISE A U-SHAPED TUBE FIXED BY FLOW BAFFLES OR TUBES SUPPORTS AND PLACED IN A SHELL TO CONTROL THE FLUID PRESENT IN THE EXTERIOR OF THE TUBE ASSEMBLY. THE FLUID IS GUIDED INTO THE TUBES BY A HEAD ASSEMBLY, WHICH IS FIXED TO THE SHELL BY BOLTS
Bending Radius: From 1.5*od(outside diameter) to 1500mm
When ordering tubes with bending radius less than 1.5*OD, it is necessary to get the agreement with seller
Straight tubes maximum length(before bending): 35000 mm.
Leg length: min 1 meter, max. 16500 mm (for max r=1500mm)
Note: other size are available upon agreement.
Heat treatment: stress relieved after u-bending (bending area plus 300mm for each leg).

packaging: In strong transport-worthy pre-fumigated wooden boxes of corresponding dimensions for each tube length, radius, diameter, according to po requirements as well as wrapped in polyethylene films with soft plastic caps on both end of tube
1.100% PMI / SPECTRO CHEMICAL ANALYSIS TESTS
2.100% DIMENSION TESTS & 100% VISUAL EXAMINATION
3.TENSION TEST, FLANGE TESTS, HARDNESS TEST, REVERSED FLATTENING TEST
4.100% HYDROSTATIC TEST AFTER BENDING PLUS 100% NON-DESTRUCTIVE TESTS
5.CHECKING STRESS RELEASED HEAT TREATMENT IN BENDING AREA PLUS 300MM STRAIGHT LEG LENGTH AFTER BENDING WITH AGREEMENT WITH CLIENTS, SIGNING BENDING REPORT

NOTES : ALL THE TESTS AND INSPECTION NEED TO PROVIDE WITH REPORTS ACCORDING TO STANDARD AND TEST RESULTS
 
1.STRAIGHTNESS TEST
2.ROUGHNESS TEST
3.CRYSTALLING PHASE ANALYSIS
4.INTERGRANULAR ATTACK TESTS
5.IMPACT ATTACK TEST UNDER LOW TEMPERATURE
6 .U-BEND BALLING PASS TEST U
7.PT TEST ON BENDING AREA
a. MTC (MATERIAL TEST CERTIFICATION) ACCORDING TO EN10204/3.1 OR EN 10204/3.2
b.RAW MATERIAL CERTIFICATION
c.ALL THE TEST & INSPECTION REPORTS AS PER PO AND STANDARDS
d.HEAT TREATMENT REPORT
e.SHIPPING NOTIFICATION BEFORE SHIPMENT
f.QUALITY WARRANTY LETTER
g.BENDING REPORT
h.HEAT TREATMENT REPORT AFTER BENDING
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