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ASTM A358 Pipe

astm a358 stainless steel efw pipes can come in different finishes such as pickled ba finish no 4 finish and electropolished Featured Image
  • astm a358 pipe is made with electric fusion welding
  • astm a358 pipe is the most used because of its strength and cost efficiency
  • astm a358 stainless steel efw pipes can come in different finishes such as pickled ba finish no 4 finish and electropolished

Short Description:

Type: Welded steel pipe, ERW steel pipe, EFW steel pipe.
Specification: OD: 8″ – 110″. WT: SCH5S, 10S, 40S, 80S or Customized.
Standard: ASTM A358 ASME SA358
Grades: 304, 304L, 310S, 316, 316L, 316H, 317L, 321, 321H, 347, 347H, 904L and so on.
End: Plain Ends / Beveled Ends
Finish: No.1 Pickled Finish, BA Finish, No.4 finish, Electropolished Seamless Steel Pipes.


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What is ASTM A358 Steel Pipe？

The ASTM A358 pipe is made with electric fusion welding. The materials for the ASTM A358  have 18% chromium, 8% nickel and manganese, silicon, sulfur, and phosphorus in the composition. The much higher resistant a358 contains molybdenum in the composition. The molybdenum content makes the material resistant to chloride ion corrosion. The A358 is the most used because of its strength and cost efficiency. The astm a358 stainless steel pipe comes in sizes ranging from 8 inches to 72 inches. The thickness of the pipes ranges from 3mm to 60mm. The astm a358 uns s31254 ranges in length up to 6 meters. ASTM A358 Stainless Steel EFW Pipes can come in different finishes such as pickled, BA finish, No 4 finish, and electropolished. The astm a358 has slight mechanical differences.

ASTM A358 / A358M is standard Specification for Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications

This specification covers electric-fusion-welded austenitic chromium-nickel stainless steel pipe suitable for corrosive or high-temperature service, or both, or for general applications. The pipes shall be sorted into five different classes.

ASTM A358 CL1 - ASTM A358 Class 1 Pipe shall be double welded by processes employing filler metal in all passes and shall be completely radiographed.

ASTM A358 CL2 - ASTM A358 Class 2 Pipe shall be double welded by processes employing filler metal in all passes, no radiography is required.

ASTM A358 CL3 - ASTM A358 Class 3 Pipe shall be single welded by processes employing filler metal in all passes and shall be completely radiographed.

ASTM A358 CL4 - Same as ASTM A358 Class 3 except that the weld pass exposed to the inside pipe surface may be made without the addition of filler metal.

ASTM A358 CL5 - ASTM A358 Class 5 Pipe shall be double welded by processes employing filler metal in all passes and shall be spot radiographed.

ASTM A358 Seamless Steel Pipes Specifications

Standard ASTM, DIN, JIS, GB, AISI, ISO, etc other International Standards
Dimensions ASTM, ASME and API
Specifications ASTM A358 / ASME SA 358 – Class 1, Class 3, Class 2, Class 4, Class 5
Grade TP 304, TP 304L/H, TP 304LN, TP 316L, TP 316, TP 321/H, TP 347/H
Size 8” NB to 72” NB.
Thickness 3mm to 60mm
Length Upto 6 meters, custom cut lengths
Wall Thickness 3mm to 20mm, SCH 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S as per ANSI B36.19/36.10
Finish No.1 Pickled Finish, BA Finish, No.4 finish, Electropolished Seamless Steel Pipes
Delivery Condition Hot Finish, Cold Finish, Bright Annealed, Annealed and Pickled, Polished, Passivated, Stress Relived
Application Food & Beverage Industry, Nuclear, Construction Industry, Thermal & Power Plants, Petrochemical, Boilers, Cement Industry, Geothermal Plants, Instrumentation Jobs, Mechanical Jobs, Heat Exchangers, Oil and Gas Equipments and Piping Works
Package Steel bundle, Plastic caps on botd ends, Woven bag or acc. to customers’ request

A358 Steel Pipe Chemical Composition

A358 GRADES UNS C Mn P S Si Cr Ni Mo Ti Nb N
TP304 S3040 0.08 2.0 0.045 0.030 1.0 18.0-20.0 8.0-11.0        
TP304L 0.035   2.0 0.045 0.030 1.0 18.0-20.0 8.0-13.0        
TP304H S30409 0.04-0.10 2.0 0.045 0.030 1.0 18.0-20.0 8.0-11.0        
TP304N S30451 0.08 2.0 0.045 0.030 1.0 18.0-20.0 8.0-18.0       0.10-0.16
TP304LN S30453 0.035 2.0 0.045 0.030 1.0 18.0-20.0 8.0-12.0       0.10-0.16
ASME SA358 TP309S S30908 0.08 2.0 0.045 0.030 1.0 22.0-24.0 12.0-15.0 0.75      
ASME SA358 TP309H S30909 0.04-0.10 2.0 0.045 0.030 1.0 22.0-24.0 12.0-15.0        
ASME SA358 TP309Cb S30940 0.08 2.0 0.045 0.030 1.0 22.0-24.0 12.0-16.0 0.75   10xC min 1.10 max  
ASME SA358 TP309HCb S30941 0.04-0.10 2.0 0.045 0.030 1.0 22.0-24.0 12.0-16.0 0.75   10xC min 1.10 nmax  
ASME SA358 TP310S S3108 0.08 2.0 0.045 0.030 1.0 24.0-26.0 19.0-22.0 0.75      
ASME SA358 TP310H S3109 0.04-0.10 2.0 0.045 0.030 1.0 24.0-26.0 19.0-22.0        
ASME SA358 TP310Cb S31040 0.08 2.0 0.045 0.030 1.0 24.0-26.0 19.0-22.0 0.75   10xC min 1.10 max  
ASME SA358 TP310HCb S31041 0.04-0.10 2.0 0.045 0.030 1.0 24.0-26.0 19.0-22.0 0.75   10xC min 1.10 max  
ASME A358 TP316 S3160 0.08 2.0 0.045 0.030 1.0 16.0-18.0 11.0-14.0 2.0-3.0      
ASTM SA358 TP316L S31603 0.035 2.0 0.045 0.030 1.0 16.0-18.0 10.0-14.0 2.0-3.0      
ASTM SA358 TP316H S31609 0.04-0.10 2.0 0.045 0.030 1.0 16.0-18.0 11.0-14.0 2.0-3.0      
TP316Ti S31635 0.08 2.0 0.045 0.030 0.75 16.0-18.0 10.0-14.0 2.0-3.0 5x (C-N) -0.70   0.10
TP316N S31651 0.08 2.0 0.045 0.030 1.0 16.0-18.0 10.0-14.0 2.0-3.0     0.10-0.16
TP316LN S31653 0.035 2.0 0.045 0.030 1.0 16.0-18.0 11.0-14.0 2.0-3.0     0.10-0.16
ASME SA358 TP317 S3170 0.08 2.0 0.045 0.030 1.0 18.0-20.0 10.0-14.0 3.0-4.0      
ASME SA358 TP317L S31703 0.035 2.0 0.045 0.030 1.0 18.0-20.0 11.0-15.0 3.0-4.0      
TP321 S3210 0.08 2.0 0.045 0.030 1.0 17.0-19.0 9.0-12.0       0.10
TP321H S32109 0.04-0.10 2.0 0.045 0.030 1.0 17.0-19.0 9.0-12.0       0.10
TP347 S3470 0.08 2.0 0.045 0.030 1.0 17.0-19.0 9.0-13.0        
TP347H S34709 0.04-0.10 2.0 0.045 0.030 1.0 17.0-19.0 9.0-13.0        
TP347LN S34751 0.05-0.02 2.0 0.045 0.030 1.0 17.0-19.0 9.0-13.0     0.20- 50.0 0.06-0.10
TP348 S3480 0.08 2.0 0.045 0.030 1.0 17.0-19.0 9.0-13.0        
ASME SA358 TP348H S34809 0.04-0.10 2.0 0.045 0.030 1.0 17.0-19.0 9.0-13.0      

ASME SA358 Steel Pipes Mechanical Properties

Material Heat Temperure Tensile Strength Yield Strength Elongation %, Min
Treatment Min. Ksi (MPa), Min. Ksi (MPa), Min.
  º F(º C)    
TP304 Solution 1900 (1040) 75(515) 30(205) 35
TP304L Solution 1900 (1040) 70(485) 25(170) 35
TP316 Solution 1900(1040) 75(515) 30(205) 35
TP316L Solution 1900(1040) 70(485) 25(170) 35

ASTM A358 Steel Size Chart

Nominal Outside Nominal Wall Thickness(mm)
Diameter Diameter ASME B36.19M ASME B36.10M
NPS (mm) SCH5S SCH10S SCH40S SCH80S SCH5 SCH10 SCH20 STD XS
1/4 13.72 - 1.65 2.24 3.02 - 1.65 - 2.24 3.02
3/8 17.15 - 1.65 2.31 3.2 - 1.65 - 2.31 3.2
1/2 21.34 1.65 2.11 2.77 3.73 1.65 2.11 - 2.77 3.73
3/4 26.67 1.65 2.11 2.87 3.91 1.65 2.11 - 2.87 3.91
1 33.4 1.65 2.77 3.38 4.55 1.65 2.77 - 3.38 4.55
1 1/4 42.16 1.65 2.77 3.56 4.85 1.65 2.77 - 3.56 4.85
1 1/2 48.26 1.65 2.77 3.68 5.08 1.65 2.77 - 3.68 5.08
2 60.33 1.65 2.77 3.91 5.54 1.65 2.77 - 3.91 5.54
2 1/2 73.03 2.11 3.05 5.16 7.01 2.11 3.05 - 5.16 7.01
3 88.9 2.11 3.05 5.49 7.62 2.11 3.05 - 5.49 7.62
3 1/2 101.6 2.11 3.05 5.74 8.08 2.11 3.05 - 5.74 8.08
4 114.3 2.11 3.05 6.02 8.56 2.11 3.05 - 6.02 8.56
5 141.3 2.77 3.4 6.55 9.53 2.77 3.4 - 6.55 9.53
6 168.28 2.77 3.4 7.11 10.97 2.77 3.4 - 7.11 10.97
8 219.08 2.77 3.76 8.18 12.7 2.77 3.76 6.35 8.18 12.7
10 273.05 3.4 4.19 9.27 12.7 3.4 4.19 6.35 9.27 12.7
12 323.85 3.96 4.57 9.53 12.7 3.96 4.57 6.35 9.53 12.7
14 355.6 3.96 4.78 9.53 12.7 3.96 6.35 7.92 9.53 12.7
16 406.4 4.19 4.78 9.53 12.7 4.19 6.35 7.92 9.53 12.7
18 457.2 4.19 4.78 9.53 12.7 4.19 6.35 7.92 9.53 12.7
20 508 4.78 5.54 9.53 12.7 4.78 6.35 9.53 9.53 12.7
22 558.8 4.78 5.54 - - 4.78 6.35 9.53 9.53 12.7
24 609.6 5.54 6.35 9.53 12.7 5.54 6.35 9.53 9.53 12.7
26 660.4 - - - - - 7.92 12.7 9.53 12.7
28 711.2 - - - - - 7.92 12.7 9.53 12.7
30 762 6.35 7.92 - - 6.35 7.92 12.7 9.53 12.7
32 812.8 Thickness :6.35~30mm
| |
84 2133.6
 Remark

 

 

 (1)Marking:Within production capability.
(2)Other nominal diameter and wall thickness subject to the approval of vendor and client.
(3)Calculating formula for the value of mass (kg/m):304/L[W=0.02491t(D-t)], 316/L[W=0.02507t(D-t)]

(Dimensions of astm a358 welded and seamless stainless steel pipes: The decimal thickness listed for the respective pipe sizes represents their nominal or average wall dimensions.

Product NPS Designator Outside Diameter Nominal Wall Thickness
in. mm Schedule 5SA Schedule 10SA Schedule 40SA Schedule 80SA
in. mm in. mm in. mm in. mm
8 8.625 219.08 0.109 2.77 0.148 3.76 0.322 8.18 0.500 12.70  
10 10.750 273.05 0.134 3.40 0.165 4.19 0.365 9.27 0.500B 12.70B  
12 12.750 323.85 0.156 3.96 0.180 4.57 0.375B 9.52B 0.500B 12.70B  
14 14.000 355.60 0.156 3.96 0.188B 4.78B ... ... ... ...  
16 16.000 406.40 0.165 4.19 0.188B 4.78B ... ... ... ...  
18 18.000 457.20 0.165 4.19 0.188B 4.78B ... ... ... ...  
20 20.000 508.00 0.188 4.78 0.188B 4.78B ... ... ... ...  
22 22.000 558.80 0.188 4.78 0.218B 5.54B ... ... ... ...  
24 24.000 609.60 0.218 5.54 0.250 6.35 ... ... ... ...  
30 30.000 762.00 0.250 6.35 0.312 7.92 ... ... ... ...

ASTM A358 Steel Pipes Tolerance

NPS Designator Permissible Variations in Outside Diameter
Over In. Under In.
1/8 to 1-1/2, incl 1/64 (0.015) 1/32 (0.031)
Over 1-1/2 to 4, incl 1/32 (0.031) 1/32 (0.031)
Over 4 to 8, incl 1/16 (0.062) 1/32 (0.031)
Over 8 to 18, incl 3/23 (0.093) 1/32 (0.031)

Nominal Wall Thickness

NPS Designator Outside Diameter in. Schedule 5S in. Schedule 10S in. Schedule 40S in. Schedule 80S in.
1/4 0.540   0.065 0.088 0.119
3/8 0.675   0.065 0.091 0.126
1/2 0.840 0.065 0.083 0.109 0.147
3/4 1.050 0.065 0.083 0.113 0.154
1.0 1.315 0.065 0.109 0.133 0.179
1 1/4 1.660 0.065 0.109 0.140 0.191
1 1/2 1.900 0.065 0.109 0.145 0.200
2 2.375 0.065 0.109 0.154 0.218
2 1/2 2.875 0.083 0.120 0.203 0.276
3 3.500 0.083 0.120 0.216 0.300
3 1/2 4.000 0.083 0.120 0.226 0.318
4 4.500 0.083 0.120 0.237 0.337
5 5.563 0.109 0.134 0.258 0.375
6 6.625 0.109 0.134 0.280 0.432
8 8.625 0.109 0.148 0.322 0.500
10 10.750 0.134 0.165 0.365 0.500
12 12.750 0.156 0.180 0.375 0.500

Wall Thickness Tolerance Astm A358 Steel Pipe

NPS ASTM A358 Steel Pipe 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
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    Application of ASTM A358 Steel Pipe

    - Cryogenic Industry
    - LNG Gas
    - Offshore Industry
    - Process Plants
    - Sub Sea
    - Refineries
    - Shipbuilding
    - Food & Beverage Industry
    - Construction Industry
    - Nuclear Industry
    - Thermal & Power Plants
    - Petrochemical, Boilers Industry
    - Cement Industry
    - Geothermal Plants
    - Heat Exchangers
    - Oil and Gas Equipment and Piping Works

    We are a professional Stainless Steel Pipe manufacturer. We provide Stainless Steel Pipe of different sizes as well as steel pipes and pipe fittings of various specifications.

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