standard, and Quality, Suppliers of ASTM A312 UNS S20200 ERW/EFW Pipe with Exceptional sizes

 

Stainless Steel 202 Welded Pipe

Stainless Steel 202 Welded Pipe

ASTM A312 TP202 SS Welded Pipe

ASTM A312 TP202 SS Welded Pipe

SS 202 Welded Pipe

SS 202 Welded Pipe

Always check DIN 1.4373 Square and Rectangular Pipe thickness and weight before buying material

Like alloy 201, grade 202 stainless steel has a superior toughness property at lower temperatures. Contrary to the Stainless Steel 202 Welded Pipe, conventional stainless steels typically indicate failure by cracking at low temperatures and do not perform well in general. Many 202 Stainless Steel Pipe Manufacturers refer to the alloy as a precipitation hardening grade. The fundamental benefit of precipitation-hardened alloys is that they show an improvement in the steel's tensile strength.

The ASTM A312 UNS S20200 ERW Pipe has qualities like strong corrosion resistance and high toughness in addition to having high hardness and high tensile strength. By utilising typical fusion and resistance procedures, this alloy can be joined together during the welding process. However, the majority of producers advise against producing SS 202 Welded Pipe via oxyacetylene welding. The alloy's chromium concentration, which ranges from 17 to 19 percent, allows the ASME SA312 TP 202 Square Pipe to create a passivating oxide layer, giving it very strong resistance to oxidation-based deterioration.

Similar to grade 304, ASTM A358 tp 202 EFW pipe has insufficient Molybdenum concentration. Grade 304 has a substantially higher nickel concentration than SUS 202 schedule 40 pipe, nevertheless. As a result, the price of the austenitic stainless steel alloy 304 is astronomically more than the price of rectangular pipes of grade DIN 1.4373.

 

Stainless Steel 202 Welded Pipe Specification Table
Sizes: 1/8" to 24"
ASTM A312 Steel grades:    TP304/304L/304H
ASTM A312 Schedules:          STD, XS, XXS, SCH5S, SCH10/10S, SCH20, SCH30, SCH40/40S, SCH60, SCH80/80S, SCH100, SCH120, SCH140, SCH160
Standards:               ASTM A312, ASME SA312
Lengths: SRL and DRL 5meters up to 11meters available from Stock or Production.
Ends: Plain/Bevelled

 

SS 202 Pipe Weight Chart
PIPE
SIZE
OD
IN
INCHES
A.S.A. Pipe Schedules
5s 5 10s 10 20 30 40s
& Sth.
40 60 80s
& E.H.
80 100 120 140 160 DBL
E.H.
1/8 .405 .035
.1383
.049
.1863
.049
.1863
.068
.2447
068
.2447
0.95
.3145
0.95
.3145
1/4 .540 .049
.2570
.065
.3297
.065
.3297
.088
.4248
088
.4248
.119
.5351
.119
.5351
3/8 .675 .049
.3276
.065
.4235
.065
.4235
.091
.5676
.091
.5676
.126
.7338
.126
.7338
1/2 .840 .065
.5383
.065
.5383
.083
.6710
.083
.6710
.109
.8510
.109
.8510
.147
1.088
.147
1.088
.187
1.304
.294
1.714
3/4 1.050 .065
.6838
.065
.6838
.083
.8572
.083
.8572
.113
1.131
.113
1.131
.154
1.474
.154
1.474
.218
1.937
.308
2.441
1 1.315 .065
.8678
.065
.8678
.109
1.404
.109
1.404
.133
1.679
.133
1.679
.179
2.172
.179
2.172
.250
2.844
.358
3.659
1-1/4 1.660 .065
1.107
.065
1.107
.109
1.806
.109
1.806
.140
2.273
.140
2.273
.191
2.997
.191
2.997
.250
3.765
.382
5.214
1-1/2 1.900 .065
1.274
.065
1.274
.109
2.085
.109
2.085
.145
2.718
.145
2.718
.200
3.631
.200
3.631
.281
4.859
.400
6.408
2 2.375 .065
1.604
.065
1.604
.109
2.638
.109
2.638
.154
3.653
.154
3.653
.218
5.022
.218
5.022
.343
7.444
.436
9.029
2-1/2 2.875 .083
2.475
.083
2.475
.120
3.531
.120
3.531
.203
5.793
.203
5.793
.276
7.661
.276
7.661
.375
10.01
.552
13.70
3 3.500 .083
3.029
.083
3.029
.120
4.332
.120
4.332
.216
7.576
.216
7.576
.300
10.25
.300
10.25
.437
14.32
.600
18.58
3-1/2 4.000 .083
3.472
.083
3.472
.120
4.973
.120
4.973
.226
9.109
.226
9.109
.318
12.51
.318
12.51
.636
22.85
4 4.500 .083
3.915
.083
3.915
.120
5.613
.120
5.613
.237
10.79
.237
10.79
.281
12.66
.337
14.98
.337
14.98
.437
19.01
.531
22.51
.674
27.54
4-1/2 5.000 .247
12.53
.355
17.61
.710
32.53
5 5.563 .109
6.349
.109
6.349
.134
7.770
.134
7.770
.258
14.62
.258
14.62
.375
20.78
.375
20.78
.500
27.04
.625
32.96
.750
38.55
6 6.625 .109
7.585
.109
7.585
.134
9.290
.134
9.290
.280
18.97
.280
18.97
.432
28.57
.432
28.57
.562
36.39
.718
45.30
.864
53.16
7 7.625 .301
23.57
.500
38.05
.875
63.08
Medium Type = Wall thickness in inches
Bold Type = Steel weight per foot in pounds
ASTM A312 TP202 SS Welded Pipe Sizes Range
NPS OD SCH 5S SCH 10S SCH 40S SCH 80S
1/4 13.72 1.65 2.24 3.02
3/8 17.15 1.65 2.31 3.2
1/2 21.34 1.65 2.11 2.77 3.73
3/4 26.67 1.65 2.11 2.87 3.91
1 33.4 1.65 2.77 3.38 4.55
1.25 42.16 1.65 2.77 3.56 4.85
1.5 48.26 1.65 2.77 3.68 5.08
2 60.33 1.65 2.77 3.91 5.54
2.5 73.03 2.11 3.05 5.16 7.01
3 88.9 2.11 3.05 5.49 7.62
3.5 101.6 2.11 3.05 5.74 8.08
4 114.3 2.11 3.05 6.02 8.56
5 141.3 2.77 3.4 6.55 9.53
6 168.28 2.77 3.4 7.11 10.97
8 219.08 2.77 3.76 8.18 12.7
10 273.05 3.4 4.19 9.27 12.7
12 323.85 3.96 4.57 9.53 12.7
14 355.6 3.96 4.78 9.53 12.7
16 406.4 4.19 4.78 9.53 12.7
18 457.2 4.19 4.78 9.53 12.7
20 508 4.78 5.54 9.53 12.7
22 558.8 4.78 5.54
24 609.6 5.54 6.35 9.53 12.7
26 660.4
28 711.2
30 762 6.35 7.92
ASTM A312 TP202 Pipe Chemical Composition
Element Content (%)
Iron, Fe 68
Chromium, Cr 17- 19
Manganese, Mn 7.50-10
Nickel, Ni 4-6
Silicon, Si ≤ 1
Nitrogen, N ≤ 0.25
Carbon, C ≤ 0.15
Phosphorous, P ≤ 0.060
Sulfur, S ≤ 0.030
Mechanical Properties of ASME SA312 TP202 Pipe
Properties Metric Imperial
Tensile strength 515 MPa 74694 psi
Yield strength 275 MPa 39900 psi
Elastic modulus 207 GPa 30000 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Elongation at break 40% 40%

 

Physical Properties of 202 SS Welded Pipe
Physical Property
Value
Density
7.80 g/cm³
Thermal Expansion
17 x10^-6 /K
Modulus of Elasticity
200 GPa
Thermal Conductivity
15 W/m.K
ASTM A312 SS 202 Welded Pipe Tolerances
NPS ASTM A312 TP202 OD Tolerance
+
inch mm inch mm
1/8~1 1 /2
> 1 1 /2~4
> 4~8
> 8~18
> 18~26
> 26~34
> 34~48
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)
0.4
0.8
1.6
2.4
3.2
4.0
4.8
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)
0.8
0.8
0.8
0.8
0.8
0.8
0.8
SS 202 Welded Pipe Wall Thickness Tolerance
NPS ASTM A312 TP 202 WT Tolerance, %
+
1/8-2 1 /2 20.0 12.5
3~18, t/D≤ 5% 22.5 12.5
3~18, t/D> 5% 15.0 12.5
≥ 20, welded 17.5 12.5
≥ 20, seamless, t/D≤ 5% 22.5 12.5
≥ 20, seamless, t/D> 5% 15.0 12.5