May 11, 2024 Leave a message

ASTM A358 EFW Pipe

A358 Pipe Description

A358 steel pipe is an electrofusion welded austenitic chromium-nickel alloy steel pipe for high-temperature use and is a more stringent specification standard than the A312 standard.

GNEE Group is a professional supplier of Stainless Steel Electro Fusion Welded Pipes and Tubes, we supply a wide range of products including 304, 304L, 304H, 309, 309S, 310,310S,316, 316L, 316H,317L,321,321H,347,347H,904 and so on. You can contact us at any time if you need.

A358 EFW Pipe Specification

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 bundles, plastic caps at both ends, woven bags or on request

A358 Stainless 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 EFW 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 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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