ASTM A789 UNS S31803 Stainless Steel Tube
- ASTM A789
- China
- Stock
- UNS S31803
STM A789 UNS S31803 Stainless Steel Tube for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking.
ASTM A789 UNS S31803 Stainless Steel Tube
ASTM A789 UNS S31803 Stainless Steel Tube
Standard:ASTM A789
Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
This specification covers grades of nominal wall thickness, ASTM A789 UNS S31803 Stainless Steel Tube for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures.
ASTM A789 UNS S31803 Stainless Steel Tube Quick Details
Company Name: Beite steel pipe
Country/Region: China
Product Name：ASTM A789 UNS S31803 Stainless Steel Tube
Manufacture：seamless or welded process,
Outside Diameter：12.7mm——304.8mm
Wall thickness：0.9mm——15.4mm
Length：6000mm、12000m or specified length as require
Port of Shipment：Tianjin,China
Payment：L/C or T/T
Delivery: 7-15 days after payment
Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden)
Manufacture
The tubes shall be made by the seamless or welded process with no filler metal added.
Heat Treatment
|
UNS Designation A |
Temperature | Quench |
| S31803 |
1870–2010°F [1020–1100°C] |
Rapid cooling in air or water |
Chemical Composition
|
UNS Designation |
C | Mn | P | S | Si | Ni | Cr | Mo | N | Cu | Others |
| S31803 | 0.030 max | 2.00 max | 0.030 max | 0.020 max | 1.00 max | 4.5-6.5 | 21.0-23.0 | 2.5-3.5 | 0.08-0.20 | ... | ... |
Mechanical Properties
|
UNS Designation A |
Tensile Strength, min, ksi [MPa] | Yield Strength, min, ksi [MPa] |
Elongation in 2 in. or 50 mm, min, % |
Hardness, max | |
| Brinell | HRC | ||||
| S31803 | 90 [620] | 65 [450] | 25 | 290 | 30 |
Mechanical Tests
Tension Tests
Flaring Test (for Seamless Tubes)
Flange Test (for Welded Tubes)
Hardness Test
Reverse Flattening Test – For welded tubes
Hydrostatic or Nondestructive Electric Test
Permissible Variations in Dimensions
| Group |
Size, Outside Diameter, in.[mm] |
Permissible Variations in Outside Diameter, in.[mm] |
Permissible
Variations in Wall Thickness, A %
|
Permissible Variations in Cut
Length, in. B [mm]
|
Thin Walled Tubes C | |
| Over | Under | |||||
| 1 |
Up to1 ⁄ 2 [12.7], excl
|
±0.005 [0.13] | ±15 |
1⁄ 8[3]
|
0 | .... |
| 2 |
1 ⁄ 2 to 1 1 ⁄ 2 [12.7 to 38.1], excl
|
±0.005 [0.13] | ±10 | 1⁄ 8[3] | 0 | less than 0.065 in. [1.6 mm] nominal |
| 3 | 1 1 ⁄ 2 to 3 1 ⁄ 2 [38.1 to 88.9], excl | ±0.010 [0.25] | ±10 | 3⁄ 16[5] | 0 | Less than 0.095 in. [2.4 mm] nominal |
| 4 | 3 1 ⁄ 2 to 5 1 ⁄ 2 [88.9 to 139.7], excl | ±0.015 [0.38] | ±10 | 3⁄ 16[5] | 0 | Less than 0.150 in. [3.8 mm] nominal |
| 5 | 5 1 ⁄ 2 to 8 [139.7 to 203.2], incl | ±0.030 [0.76] | ±10 | 3⁄ 16[5] | 0 | Less than 0.150 in. [3.8 mm] nominal |
Surface Condition
All tubes shall be free of excessive mill scale,suitable for inspection. A slight amount of oxidation will not be considered as scale.
Product Marking
In addition to the marking prescribed in Specification A 1016/A 1016M, the marking indicate whether the tubing is seamless or welded.
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