Welded Stainless Steel Pipe

Welded stainless steel pipe provides us a large diameter but low cost solution. Our welding process mainly is Plasma-Arc Welding(PAW), its biggest diameter could reach 3000mm. If other process is required, please state it in the requirement of stainless steel tubings.

Stainless steel contains chromium which provides the properties of corrosion resistance at high temperatures. Stainless steel can withstand corrosive or chemical environments due to its smooth surface. Stainless steel products are safe for long-term use with excellent resistance of corrosion fatigue.

Available Grade:
TP304,304L,304H,316,316L,316H,316Ti,317,317L,309S,310S,310H,347,347H,321,321H,904L, S31254.(mat.1.4301,1.4307,1.4948,1.4401,1.4404,1.4571,1.4438,1.4438, 1.4833,1.4841,1.4845,1.4845,1.4450,1.4541,1.4878,1.4539, ,1.4547/254SMO) etc.
(If your required is not found here, please make a special enquiry immediately. Our team will reply in time.)

Welded Pipe’s Surface Finishes:

Pickling finish
bright annealed finish
Mirror finish
sand blast finish

Stainless Steel DIN 1.4436 EFW Tube Sizes In Mm

Wall Thickness	Stainless Steel 310 Tube 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"

Chemical Properties of SS UNS S31603 Rectangular Pipe

	SS 310	SS 310S
Ni	19 – 22	19 – 22
Cr	24 – 26	24 – 26
C	0.25 max	0.08 max
Fe	Balance
Mn	2 max	2 max
Si	1.50 max	1.50 max
S	0.03 max	0.03 max
P	0.045 max	0.045 max

Mechanical & Physical Properties of SS 310 Pipe

Density	8.0 g/cm3
Melting Point	1454 °C (2650 °F)
Tensile Strength	Psi – 75000 , MPa – 515
Yield Strength (0.2%Offset)	Psi – 30000 , MPa – 205
Elongation	35%

Equivalent Of ASME SA312 SS 310 Schedule 40 Pipe

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
SS 310	1.4841	S31000	-	-	-	-	-

SS DIN 1.4436 Welded Pipe Physical Properties

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (m/m/0C)			Thermal Conductivity (W/m.K)		Specific Heat 0-1000C (J/kg.K)	Electrical Resistivity (n.m)
			0-100°C	0-315°C	0-538°C	at 100°C	at 500°C
310 / 310S	7750	200	15.9	16.2	17.0	14.2	18.7	500	720

Others

Maximum Allowable Working Pressure (Psi) For Fractional Sizes

Pipe OD	Wall Thickness (Inches)
Pipe OD	.010	.012	.016	.020	.028	.035	.049	.065	.083	.095	.109	.120
1/16	6,422	7,872	10,768	13,484
1/8				6,422	9,325	11,823
3/16				4,081	5,935	7,630	11,005
1/4					4,305	5,518	8,053	10,946
3/8						3,530	5,107	7,029
1/2						2,595	3,721	5,078	6,699
5/8						2,051	2,927	3,970	5,200	6,056
3/4						1,696	2,412	3,259	4,249	4,933	5,755	6,422
7/8						1,446	2,051	2,764	3,592	4,161	4,842	5,391
1						5,040	7,140	9,595	12,445	14,390	16,715	18,585

Maximum Allowable Working Pressure (Bar) For Metric Sizes

Pipe OD	Wall Thickness (Inches)
Pipe OD	0.5	0.6	0.7	0.8	1.0	1.2	1.5	1.6	1.8	2.0	2.2	2.5	3.0
3	464	567	672	775	965
4	335	411	491	567	723	873
6			310	360	464	567	723	775
8			227	262	335	411	528	567
10				206	262	320	411	442
12				169	215	262	335	360	411	464
14					182	222	282	303	345	389	433	500	612
16					158	192	244	262	298	335	372	430	528
18					140	169	215	230	262	294	326	377	464
22					113	137	173	186	211	236	262	301	369
25					99	120	152	162	184	206	228	262	320