ASTM A312 Grade 309H Stainless Steel Pipe




SS 309H Pipe Supplier, ASTM A312 TP309H Seamless Pipe

SS 309H Pipe Supplier

Superior Steel Overseas is highly acclaimed manufacturer, exporter and distributor of Stainless Steel 309H Pipe, which available in various sizes or grades, materials and finishes in metric and inch sizes.Grade 309H is the AISI designation for this material.We are also well known SS 309H Pipe supplier.We are also stockist and exporter of Stainless Steel 309H Seamless Pipes and Stainless Steel 309H Welded Pipe with high quality materials and in both standards national and international.  ASTM A312 TP 309H Seamless pipe is essentially nonmagnetic as annealed and become lightly magnetic when cold worked. Stainless Steel 309H Seamless Pipes and SS 309H Welded Pipes used in different industries like oil & gas, Refineries, Fertilizers, Heat-Exchangers, Paper & Pulp, Pharmaceuticals, Chemicals, Water Treatment, Dairy, Sugar & Food Processing etc.SS 309H Pipe can be welded using most of the resistance and fusion methods. 309H Stainless steel pipe can be drawn, headed, upset and stamped, although this steel has high work hardening rate. However, it has be fully annealed after cold-working to reduce internal stress. ASTM A312 TP309H Welded Pipe which also known as UNS S30909 Pipes.We deliver this entire range of SS 309H seamless pipe from our end after quality testing properly by skilled professionals on time.Buy SS 309H Pipe at affordable price from us.We have huge inventory of ASME SA312 TP309H stainless steel pipe in Seamless, Welded, ERW, EFW, SAW, LSAW, DSAW etc.

Stainless Steel 309H Seamless Pipe Specification

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 309H Pipe Weight

PIPE
SIZE
OD
IN
INCHES
A.S.A. Pipe Schedules
5s 5 10s 10 20 30 40s
& Std.
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

Stainless Steel ASTM A312 TP309H Seamless Pipe Sizes

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 TP309H Chemical Composition

Grade C Mn Si P S Cr Ni Fe
309H min. 0.04 22.0 12.0 58.0
63.0
max. 0.10 2.0 0.75 0.045 0.03 24.0 15.0

ASTM A312 TP309H Mechanical Properties

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
309H 515 205 40 95 217

ASTM A312 SS 309H Physical Properties

Density (lb./ in^2) @ RT   0.29
Modulus of Elasticity in Tension (psi x 10^6)   29.0
Specific Heat (BTU/o F/lb.) 32 to 212 oF 0.12
Thermal Conductivity (BTU/hr/ft^2/ft) 212oF 9.0
  932oF 10.8
Mean Coefficient of Thermal Expansion (in. x 10^-6 per o F) 32 to 212oF 8.3
  32 to 600oF 9.3
  32 to 1,000oF 9.6
  32 to 1,200oF 10.0
Electrical Resistivity (micro ohms – cm) at 70oF 39.8
Melting Point Range (oF)   2550 – 2650
Oxidation Resistance – Continuous Service(oF)   2000
Oxidation Resistance – Intermittent Service(oF)   1800

ASTM A312 SS 309H Seamless Pipe Tolerances

NPS ASTM A312 TP309H 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

Wall Thickness Tolerance of ASTM A312 TP309H SS Seamless Pipe

NPS ASTM A312 TP 309H 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

ASTM A312 TP 309H Welded Steel Pipe Inventory

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