The SAE J356 specification covers electric resistance welded, flash-controlled, normalized, single-wall, and low-carbon steel pressure tubes. 

These SAE J356 Hydraulic Tubing are specifically designed for applications involving pressure lines and situations where tubing quality is crucial for processes such as bending, double flaring, beading, shaping, and brazing. It’s important to note that due to the potential leak route introduced by the inner diameter (ID) weld bead, this material is not recommended for single flare applications.

SAE J356 Type-A, a subset of this specification, refers to smaller diameter, light-wall tubing, typically with an outer diameter (OD) of 5/8″ or less and 18 gauge or thinner. Type-A tubing is annealed “in line,” in contrast to the standard SAE J356 where normalization is conducted separately. The performance criteria for Type-A tubes align with those of J356 tubes, although the chemical composition ranges for carbon and manganese are more comprehensive. Type-A tubes are often produced in coil form, although they can be cut and straightened using secondary processes.

SA179 Tubes is a prominent supplier, exporter, and stockist of SAE J356 Hydraulic Tubing, based in Mumbai, India. We produce these SAE J356 Hydraulic Tubes using high-quality raw materials and the latest technology, adhering to global quality standards.

To ensure the quality and reliability of SAE J356 Hydraulic Tubing, these tubes undergo thorough evaluation following SAE J1677 standards. The tests include the Flattening Test, Flaring Test, Reverse Flattening Test, Expansion Test, Hardness Test, Tensile Test, Pressure Proof Test, and a Nondestructive Electronic Test.

This meticulous testing ensures that SAE J356 Hydraulic Tubing meets the stringent requirements of hydraulic and pressure applications, guaranteeing their performance and safety in demanding conditions.

DIN 2391 ST52 Carbon Steel Pipes Chemical Composition

Dimensions ASTM
Specialized Supplier in Large Diameter Size
Seamless Tube 4 to 219mm
W. T 0.5 to 20mm
Size 15″NB TO 150″NB IN
Schedule SCH5, SCH10, SCH40, STD, SCH80, SCH160
Testing Provided H2 SERVICE, NACE TM0177, NACE TM0284, SSC TEST, NACE MR0175, HIC TEST, IBR, etc.
Available Type Seamless / ERW / Welded / Fabricated / LSAW
Form Round, Hydraulic Etc
End Plain End, Beveled End, Treaded
Length Single Random, Double Random & Cut Length.

SAE J356 Tube Chemical Composition

Element Cast or Heat Analysi Weight %
J356 J356 Type-A
Carbon
0.06 Min/0.18 Max
0.02 Min/0.18 Max
Manganese
0.30 Min/0.60 Max
0.10 Min/0.60 Max
Phosphorus
0.04 Max
0.04 Max
Sulfur
0.06 Max
0.05 Max

SAE J356 Tube Mechanical Properties

Properties Values
Yield Strength (Min) 25,000 PSI
Tensile Strength (Min.) 45,000 PSI
Elongation in 2” (Min) 35% a
Hardness (Rockwell B)(Max) 65 b

SAE J356 Tubing Outside Diameter Tolerances

Nominal Tube OD (Inches) Tube OD Tolerance (+/- Inches)
Up to 3/8 .0025
Over 3/8 to 5/8 .003
Over 5/8 to 1-1/8 .0035
Over 1-1/8 to 2 .005
Over 2 to 2-1/2 .006
Over 2-1/2 to 3 .008
Over 3 to 3-1/2 .009
Over 3-1/2 to 4 .010

J356 Welded Hydraulic Tubing Wall Thickness Tolerances

Nominal Wall Thickness (Inches) Nominal Tube OD Through 1” (+/- Inches) Nominal Tube OD Over 1” Through 2” (+/- Inches) Nominal Tube OD Over 2” Through 4” (+/- Inches)
  .028 (22 Ga) .002/.003 .003/.003 .003/.003
  .035 (20 Ga) .002/.004 .002/.004 .002/.004
  .042 (19 Ga) .002/.004 .002/.004 .002/.005
  .049 (18 Ga) .004/.005 .003/.005 .004/.008
  .058 (17 Ga) .006/.006 .004/.008 .004/.008
  .065 (16 Ga) .006/.006 .004/.008 .004/.008
  .072 (15 Ga) .006/.010 .006/.010 .006/.010
  .083 (14 Ga) .006/.010 .006/.010 .006/.010
  .095 (13 Ga) .006/.010 .006/.010 .006/.010
  .100 .006/.010 .006/.010 .006/.010
  .109 (12 Ga) .006/.010 .006/.010 .006/.010
  .118 .006/.010 .006/.010 .006/.010
  .120 (11 Ga) .006/.010 .006/.010 .006/.010
  .134 (10 Ga) .006/.010 .006/.010 .006/.010
  .148 (9 Ga) .007/.001 .007/.011
  .156 (5/32) .007/.011 .007/.011
  .165 (8 Ga) .007/.011 .007/.011
  .180 (7 Ga) .007/.011 .007/.011
  .197 .008/0.12 .008/0.12
  .203 (6 Ga) .008/0.12 .008/0.12
  .219 (7/32) .008/.012 .008/.012
  .236 .014/.018 .014/.018
  .238 (4 Ga) .014/.018 .014/.018
  .259 (3 Ga) .014/.020 .014/.020

SAE J356 Steel Tube Hydraulic Pressure Rating

Nominal Tube O.D. inch mm Nominal Tube Wall Thickness
0.028 0.035 0.049 0.065 0.083 0.093 0.109 0.12 0.134 0.148 0.156 0.188
0.71mm 0.89mm 1.24mm 1.65mm 2.11mm 2.41mm 2.77mm 3.05mm 3.40mm 3.76mm 3.96mm 4.78mm
Reference Working Pressures at 4:1 Design Factor(psi/Mpa)    
0.125 6650 8450                      
3.18 46 58.5                      
0.188 4250 5450                      
4.77 29.5 37.5                      
0.25 3100 3950 5750 7800                  
6.35 21.5 27 39.5 54                  
0.312 2450 3100 4500 6150                  
7.92 16.8 21.5 31 42.5                  
0.375 2000 2550 3650 5000 6550 7600              
9.53 13.8 17.6 25 34.5 45 52.5              
0.5 1850 2700 3650 4800 5550 6450 7200            
12.7 12.8 18.6 25 33 38.5 44.5 49.5            
0.625 1500 2100 2850 3750 4350 5050 5600            
15.88 10.4 14.5 19.6 26 30 35 38.5            
0.75 1200 1750 2350 3050 3550 4150 4600            
19.05 8.3 12 16.2 21 24.5 28.5 31.5            
0.875 1050 1500 2000 2600 3000 3500 3900            
22.23 7.2 10.4 13.8 18 20.5 24 27            
1 900 1300 1750 2250 2600 3000 3350 3800 4200        
25.4 6.2 9 12 15.5 18 20.5 23 26 29        
1.125 1150 1550 2000 2300 2650 2950 3300 3700          
28.58 7.9 10.6 13.8 15.8 18.2 20.5 23 25.5          
1.25 1000 1350 1750 2050 2350 2650 2950 3300 3500 4300      
31.75 6.9 9.3 12 14.2 16.2 18.2 20.5 23 24 29.5      
1.5 1150 1450 1700 1950 2150 2450 2700 2850 3500        
38.1 7.9 10 11.8 13.5 14.8 16.8 18.6 19.6 24        
1.75 950 1250 1450 1650 1850 2050 2300 2400 2950        
44.45 6.6 8.6 10 11.4 12.8 14.2 15.8 16.6 20.5        
2 850 1100 1250 1450 1600 1800 2000 2100 2550        
50.8 5.9 7.6 8.6 10 11 12.4 13.8 14.5        

J356 Hydraulic Tube Application

ST 52 Seamless Steel Pipe
  • Air Preheater Unit
  • Steam generating Boiler
  • Power Generation
  • Economiser
  • Heat Exchangers
  • Electric Power Plants
  • Fossil Fuel Plants
  • Water Supply Systems
  • Waste Heat Plants
  • Cogeneration Facilities

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Supply and Exporter of SAE J356 Tube in Countries like

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