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DIN 1.4307 Seamless Tubing and UNS S30403 ERW Tube Stockist in Mumbai, India


304 Stainless Steel Tube

A stainless steel 304 grade is an austenitic module. The 304 stainless steel tube is designed with a superior composition consisting of 18% chromium and 8% nickel. The outstanding content embedded in them gives them excellent resistance to corrosive and oxidative media. These tubes work well across high-temperature systems and are generally designed in seamless, welded, and ERW configurations. A SS 304 Seamless Tube is designed by passing hot steel billets via an extrusion process. This allows the tubes to have excellent strength and tolerance in the system. Designed without any seams or welds the DIN 1.4307 Seamless Tubing has 20% higher pressure holding capacity and strength compared to welded tubes. The length of these tubes is, however, restricted to 24 inches. The SS 304 Welded Tubes offer a cost-effective solution to seamless tubes. These tubes are manufactured by rolling pieces of strips and sheets, followed by welding them in place following an array of shop welding procedures. A UNS S30403 ERW Tube is a robust grade that is designed by rolling the material till it achieves a longitudinal seam. These tubes are later put together by passing a high voltage current through them.

Piping components are usually designated schedules that dictate their pressure-holding capacity. AISI 304 Schedule 40 Tube is the most common schedule across this range. These tubes can carry moderate to low pressures across different environmental conditions. Our Institution is a 304 stainless steel tube supplier who believe in quality over anything. We have a good reputation in the industry and have a very low return rate. Our tie-up with the best logistical and supply chains allow us to transport products to your doorstep on short notice. Get in touch with us for more information on our products or their pricing.

See Online Price List of AISI 304 Schedule 40 Tube and SS 304 Welded Tubes, Check 304 stainless steel tube Dimension Chart


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Table of Content

304 Stainless Steel Tube Specfication chart

Supplier and distributor of Polished 304 Stainless Steel Tube in Mumbai, also offer custom thickness and finish of DIN 1.4307 Welded Tubes &UNS S30403 ERW Tubing

Standard Specifiaction 304 Stainless Steel Tube
EFW Tube Sizes 6 upto 100 inch Nominal Bore
Seamless Tube Sizes 1/2 upto 8 inch Nominal Bore
Wall Thickness (WT) Schedule 5S to XXS
ERW Tube Sizes 1/2 upto 24 inch Nominal Bore
Length Single Random, Double Random, Cut Length
End Plain End, Beveled End, Treaded
Processing Polishing, Polished Grit 120 to 600, Cut-to-length
Materials Testing CRYO SERVICE, H2 SERVICE, OXYGEN SERVICE, NACE MR0175

UNS S30403 ERW Tube Price List

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Per Kg

2 Inch Diameters Ss 304 Stainless Steel Tube


$ 25.83

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Per Kg

Sus 304 Welded Stainless Steel Tubing


$ 2.89

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Per Kg

Aisi 304 Handrail Welded Stainless Steel Tubes


$ 10.84

Types of AISI 304 Schedule 40 Tube

304 Stainless Steel Tubes

304 Stainless Steel Tubes

DIN 1.4307 Seamless Tubing

DIN 1.4307 Seamless Tubing

UNS S30403 ERW Tube

UNS S30403 ERW Tube

AISI 304 Schedule 40 Tube

AISI 304 Schedule 40 Tube

SS 304 Welded Tubes

SS 304 Welded Tubes

Polished 304 Stainless Steel Tube

Polished 304 Stainless Steel Tube

SS 304 Seamless Tube

SS 304 Seamless Tube

1.4307 Welded Tubes

1.4307 Welded Tubes

SS 304 Tubing

SS 304 Tubing

SS 304 Welded Tubes Chemical Composition

Grades Phosphorus Sulfur Carbon Chromium Manganese Silicon Nickel
SS 304 0.045 0.03 0.08 18.0-20.0 2 1 8.0-11.0

304 stainless steel tube Mechanical Poperties

Searching 304 Stainless Steel Tube Supplier in India? PED approved stockist of UNS S30403 ERW Tube and SS 304 Seamless Tube in Sch 10/ 40/ 60/ 80.
Material Temperure Tensile Properties Yield Properties Heat Elongational
Min. º F(º C) Ksi , Min. Ksi , Min. Treatment
SS 304 1900 (1040) 75(515) 30(205) Solution 35

Equivalent of Polished 304 Stainless Steel Tube

Grade Unified Numbering System Old British Japanese Industrial Standards Euronorm Swedish SS
European Standards British Standards Name No
304 S30400 58E 304S31 SUS 304 X5CrNi18-10 1.4301 2332

DIN 1.4307 Welded Tubes Physical Properties

Grade Density Thermal Conductivity (W/m.K) Mean Coefficient of Thermal Expansion (m/m/0C) Elastic Modulus Electrical Resistivity (n.m) Specific Heat 0-1000C (J/kg.K)
at 5000C 0-3150C 0-1000C at 1000C 0-5380C
304 8000 21.5 17.8 17.2 16.2 18.4 193 720 500

Sizes of UNS S30403 ERW Tubing

Supplier & exporter of SS 304 Tubing in Mumbai, Buy DIN 1.4307 SeamlessTube in Custom sizes, length and Small diameter at low cost in India, check 304 Stainless Steel Tube price per foot in India
Outer Daimeter in Inch Wall 
Dec-In.		 BW 
Ga.		 Inner Daimeter Weight 
3/16 0.028 22 0.131 0.0478
1/8 0.028 22 0.069 0.0290
0.035 20 0.055 0.0336
5/16 0.035 20 0.242 0.1039
0.049 18 0.214 0.1382
0.065 16 0.182 0.1722
3/8 0.028 22 0.319 0.1038
0.035 20 0.305 0.1271
0.049 18 0.277 0.1706
0.065 16 0.245 0.2152
1 0.035 20 0.930 0.3607
0.049 18 0.902 0.4977
0.065 16 0.870 0.6491
0.083 14 0.834 0.8129
0.120 11 0.760 1.1278
1/4 0.020 25 0.210 0.0491
0.028 22 0.194 0.0664
0.032 21 0.187 0.0745
0.035 20 0.180 0.0804
0.049 18 0.152 0.1052
0.065 16 0.120 0.1284
7/16 0.049 18 0.340 0.2036
5/8 0.035 20 0.555 0.2205
0.049 18 0.527 0.3014
0.065 16 0.495 0.3888
3/4 0.035 20 0.680 0.2673
0.049 18 0.652 0.3668
0.065 16 0.620 0.4755
0.083 14 0.584 0.5913
1/2 0.020 25 0.460 0.1025
0.035 20 0.430 0.1738
0.049 18 0.402 0.2360
0.065 16 0.370 0.3020
7/8 0.049 18 0.777 0.4323
0.065 16 0.745 0.5623
0.120 11 0.635 0.9676
1-1/4 0.120 11 1.010 1.4480

SS 304 Seamless Tube Surface Finish

Surface Finish Internal Surface(ID) Exterbal Surface(OD)
Roughness Average(RA) Roughness Average(RA)
μ inch μm μ inch μm
EP Electro Polish 15,10,7,5 0.38,0.25,0.20;0.13 32 0.8
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

Tolerance of DIN 1.4307 SeamlessTube

Nominal Pipe Size Outer Diameter Tolerance
+ –
mm inch mm inch
1/8~1 1 /2
> 1 1 /2~4
> 4~8
> 8~18
> 18~26
> 26~34
> 34~48		 0.4
0.8
1.6
2.4
3.2
4.0
4.8		 1/64(0.015)
1/32(0.031)
1/16(0.062)
3/32(0.093)
1/8(0.125)
5/32(0.156)
3/16(0.187)		 0.8
0.8
0.8
0.8
0.8
0.8
0.8		 1/32(0.031)
1/32(0.031)
1/32(0.031)
1/32(0.031)
1/32(0.031)
1/32(0.031)
1/32(0.031)

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