Stainless Steel Seamless Tubing

Steel seamless tubing is highly valued for its characteristics and outstanding performance in various industries, including oil and gas chemical processing, power generation and manufacturing.


The manufacturing process involves shaping a billet of steel into a hollow tube by heating it and then carefully molding it over a form. This seamless tubing is renowned for its strength and resistance since it lacks any welded seams that could weaken it under high-pressure conditions.


One notable feature of steel tubing is its impressive corrosion resistance. The presence of chromium in the steel creates an oxide layer that protects the metal from corrosive environments. This makes it an ideal choice for chemical exposure applications in the chemical processing industry.


These tubes exhibit heat resistance, maintaining their strength and structural integrity in extreme temperatures. This aspect proves advantageous in industries like power generation and automotive, where materials must withstand heat levels.


In addition to these qualities, steel seamless tubes are renowned for their durability and long lifespan. The absence of welded seams reduces the chances of leaks and ruptures, improving tube reliability and reducing maintenance requirements over time.


Seamless tubing offers an appealing modern look and finds its place in architecture, serving both structural and aesthetic purposes. This combination of beauty and strength is truly remarkable.


Steel seamless tubing stands out for various industries due to its exceptional strength, unmatched resistance against corrosion, impressive heat tolerance and commitment to sustainability.

Specification

Standards -
Types Welded, Seamless, ERW, Fabricated, CEW, CDW, CDS, DOM
Size range 1/2" OD - 12" OD
Production technique Decoiling, Punching, Bending, Welding,  Cutting, Moulding
Standards ASTM, AISI, JIS, DIN, EN, SUS, GB
Form Round, Hydraulic,  Coiled,  Square,  U Shape,  Rectangular,  Straight,  Honed Tubes,  Pan Cake Coils
Thickness Range SCH 10, SCH 160, SCH XXH, SCH XXS, SCH 5, SCH 40, SCH XS, SCH 80S, SCH 80
Custom Size/Thickness Available
End Treaded, Beveled End, Plain End
Surface Finish 8K,  1D,  No.3,  180G,  BA,  No.4,  500G,  No.1,  Mirror Polished,  320G,  HL,  No.8, 400G,  2B,  600G or 800G Mirror finish Tubing,  2D,  400G Satin/ Hairline or Custom Finish as per customer's specification.
Marking Standard
Name of Manufacturer
Schedule
Pressure Class
Tube Size, etc
Test Certificates
Third Party Inspection Report
Manufacturer Test Certificate
Raw Materials Certificate
100% Radiography Test Report
Laboratory Test Certificate from Govt. Approved Lab
EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)

Available Tubes in Our Warehouse

Thin Wall Tubing

Thin Wall Tubing

Seamless Tube

Seamless Tube

Erw Tube

Erw Tube

Bright Annealed Tube

Bright Annealed Tube

Coil Tubing

Coil Tubing

Condenser Tube

Condenser Tube

Welded Tube

Welded Tube

Heat Exchanger Tube

Heat Exchanger Tube

Small Diameter Tubing

Small Diameter Tubing

Equivalent Grades

STANDARDWERKSTOFF NR.UNSJISBSGOSTAFNOREN
SS 3041.4301S30400SUS 304304S3108Х18Н10Z7CN18‐09X5CrNi18-10
SS 304L1.4306 / 1.4307S30403SUS 304L3304S1103Х18Н11Z3CN18‐10X2CrNi18-9 / X2CrNi19-11
SS 304H1.4301S30409
SS 3101.4841S31000SUS 310310S2420Ch25N20S2X15CrNi25-20
SS 310S1.4845S31008SUS 310S310S1620Ch23N18X8CrNi25-21
SS 310HS31009
SS 3161.4401 / 1.4436S31600SUS 316316S31 / 316S33Z7CND17‐11‐02X5CrNiMo17-12-2 / X3CrNiMo17-13-3
SS 316L1.4404 / 1.4435S31603SUS 316L316S11 / 316S1303Ch17N14M3 / 03Ch17N14M2Z3CND17‐11‐02 / Z3CND18‐14‐03X2CrNiMo17-12-2 / X2CrNiMo18-14-3
SS 316H1.4401S31609
SS 316Ti1.4571S31635SUS 316Ti320S3108Ch17N13M2TZ6CNDT17‐123X6CrNiMoTi17-12-2
SS 3171.4449S31700SUS 317
SS 317L1.4438S31703SUS 317LX2CrNiMo18-15-4
SS 3211.4541S32100SUS 321X6CrNiTi18-10
SS 321H1.4878S32109SUS 321HX12CrNiTi18-9
SS 3471.4550S34700SUS 34708Ch18N12BX6CrNiNb18-10
SS 347H1.4961S34709SUS 347HX6CrNiNb18-12
SS 904L1.4539N08904SUS 904L904S13STS 317J5LZ2 NCDU 25-20X1NiCrMoCu25-20-5

Chemical Composition

GradeCMnSiPSCrMoNiNTiFe
304min.18.08.0
max.0.082.00.750.0450.03020.010.50.10
304Lmin.18.08.0
max.0.0302.00.750.0450.03020.012.00.10
304Hmin.0.0418.08.0
max.0.0102.00.750.0450.03020.010.5
SS 3100.015 max2 max0.015 max0.020 max0.015 max24.00 26.000.10 max19.00 21.0054.7 min
SS 310S0.08 max2 max1.00 max0.045 max0.030 max24.00 26.000.75 max19.00 21.0053.095 min
SS 310H0.04 0.102 max1.00 max0.045 max0.030 max24.00 26.0019.00 21.0053.885 min
316min.16.02.03.010.0 
max.0.0352.00.750.0450.03018.014.0 
316Lmin.16.02.03.010.0  
max.0.0352.00.750.0450.03018.014.0 
316TI0.08 max10.00 14.002.0 max0.045 max0.030 max16.00 18.000.75 max2.00 3.00
3170.08 max2 max1 max0.045 max0.030 max18.00 20.003.00 4.0057.845 min
SS 317L0.035 max2.0 max1.0 max0.045 max0.030 max18.00 20.003.00 4.0011.00 15.0057.89 min
SS 3210.08 max2.0 max1.0 max0.045 max0.030 max17.00 19.009.00 12.000.10 max5(C+N) 0.70 max
SS 321H0.04 0.102.0 max1.0 max0.045 max0.030 max17.00 19.009.00 12.000.10 max4(C+N) 0.70 max
347/ 347H0.08 max2.0 max1.0 max0.045 max0.030 max17.00 20.009.0013.00
410min.11.5
max.0.151.01.000.0400.03013.50.75
446min.23.00.10
max.0.21.50.750.0400.03030.00.500.25
904Lmin.19.04.0023.000.10
max.0.202.001.000.0450.03523.05.0028.000.25

Mechanical Properties

GradeDensityMelting PointTensile StrengthYield Strength (0.2%Offset)Elongation
304/ 304L8.0 g/cm31400 °C (2550 °F)Psi 75000 , MPa 515Psi 30000 , MPa 20535 %
304H8.0 g/cm31400 °C (2550 °F)Psi 75000 , MPa 515Psi 30000 , MPa 20540 %
310 / 310S / 310H7.9 g/cm31402 °C (2555 °F)Psi 75000 , MPa 515Psi 30000 , MPa 20540 %
306/ 316H8.0 g/cm31400 °C (2550 °F)Psi 75000 , MPa 515Psi 30000 , MPa 20535 %
316L8.0 g/cm31399 °C (2550 °F)Psi 75000 , MPa 515Psi 30000 , MPa 20535 %
3177.9 g/cm31400 °C (2550 °F)Psi 75000 , MPa 515Psi 30000 , MPa 20535 %
3218.0 g/cm31457 °C (2650 °F)Psi 75000 , MPa 515Psi 30000 , MPa 20535 %
3478.0 g/cm31454 °C (2650 °F)Psi 75000 , MPa 515Psi 30000 , MPa 20535 %
904L7.95 g/cm31350 °C (2460 °F)Psi 71000 , MPa 490Psi 32000 , MPa 22035 %

Seamless Coiled tube Sizes

Wall Sizes ( O.D.)
.010 1/16" , 1/8" , 3/16"
.020 1/16" , 1/8" , 3/16" , 1/4" , 5/16" , 3/8"
.012 1/8"
.016 1/8" , 3/16"
.028 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 3/4" , 1" , 1 1/2" , 2"
.035 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 7/16" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4"
.049 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/8" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4"
.065 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 3/4" , 2" , 2 1/2" , 3"
.083 1/4" , 3/8" , 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 7/8" , 2" , 2 1/2" ,3"
.095 1/2" , 5/8" , 1" , 1 1/4" , 1 1/2" , 2"
.109 1/2" , 3/4" , 1" , 1 1/4" , 1 1/2" , 2"
.120 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 2" , 2 1/4" , 2 1/2" , 3"
.125 3/4" , 1" , 1 1/4" , 1 1/2" , 2" , 3" , 3 1/4"
.134 1"
.250 3"
.375 3 1/2"

Seamless Tube Surface Finish

Surface Finish Internal Surface(ID) Exterbal Surface(OD)
Roughness Average(RA) Roughness Average(RA)
μ inch μm μ inch μm
AP Annealed & Pickled Not defined Not defined 40 or Not defined 1.0 or Not defined
BA Beight Annealed 40,32,25,20 1.0,0.8,0.6,0.5 32 0.8
MP Mechanical Polish 40,32,25,20 1.0,0.8,0.6,0.5 32 0.8
EP Electro Polish 15,10,7,5 0.38,0.25,0.20;0.13 32 0.8

Application

Aerospace

Cleaning Factories

Food Processing

Food Processing

Oil and Gas

Oil and Gas

Pharmaceutical

Pharmaceutical

Power Plant

Power Plant

Ship Building

Ship Building

Water Systems

Water Systems

Refinery

Refinery