ASTM A269 TP304 TP304L TP316L SUS316L 1.4404 Stainless Steel Seamless Tube 6M , Boiler Heat Exchanger Tube

Product Details
Place of Origin: CHINA
Brand Name: TONG CHUANG
Certification: ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number: TP304,TP304L ,TP316L, SUS316L, 1.4404
Payment & Shipping Terms
Minimum Order Quantity: 100KGS
Price: Negotiable
Packaging Details: According to Client Requirements/ Ply-wooden Case/ Iron Case/ Bundle with plastic Cap
Delivery Time: 10-35 DAYS
Payment Terms: T/T, L/C
Supply Ability: According to Client Requirements

SKU: 413 Category:
Material Grade:TP304，TP304L ，TP316L， SUS316L， 1.4404Standard:ASTM A269
Certificate:ABS， GL， DNV， NK， PED， AD2000， GOST9941-81， CCS， ISO 9001-2008DNT:ET，UT，PT，HT
Third Party Inspection:BV，SGS，ASPSurface:Pickling Annealing
High Light:

seamless stainless steel tube

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Stainless Steels

ASTM A269 TP304 TP304L TP316L SUS316L 1.4404 Stainless Steel Seamless Tube 6M ， Boiler Heat Exchanger Tube

The ASTM A269 specification covers nominal-wall-thickness， seamless and welded austenitic steel tubing for general corrosion-resisting and low- or high-temperature service. Upon completion， all material shall:

  • shall be furnished in the heat-treated condition.
  • conform to the chemical composition requirements.
  • different mechanical test requirements that includes， flaring test， flange test， hardness test， and reverse flattening test are presented.
  • shall be subjected to the non-destructive electric test or the hydrostatic test

Mechanical properties of 316 grade stainless steels.

Grade
Tensile Str
(MPa) min
Yield Str
0.2% Proof
(MPa) min
Elong
(% in 50mm) min
Hardness
Rockwell B (HR B) max
Brinell (HB) max
316
515
205
40
95
217
316L
485
170
40
95
217
316H
515
205
40
95
217

Typical physical properties for 316L grade stainless steels.

Grade
Density
(kg/m3)
Elastic Modulus
(GPa)
Mean Co-eff of Thermal Expansion (m/m/0C)
Thermal Conductivity
(W/m.K)
Specific Heat 0-1000C
(J/kg.K)
Elec Resistivity
(nΩ.m)
0-1000C
0-3150C
0-5380C
At 1000C
At 5000C
316/L
8000
193
15.9
16.2
17.5
16.3
21.5
500

 

740

 

 

Corrosion Resistance of 316L Stainless Steel Pipes and Tubes

excellent in a range of atmospheric environments and many corrosive media – generally more resistant than 304. Subject to pitting and crevice corrosion in warm chloride environments， and to stress corrosion cracking above about 600C. Considered resistant to potable water with up to about 1000mg/L chlorides at ambient temperatures， reducing to about 500mg/L at 600C.

316L is usually regarded as the standard €œmarine grade stainless steel"， but it is not resistant to warm sea water. In many marine environments 316L does exhibit surface corrosion， usually visible as brown staining. This is particularly associated with crevices and rough surface finish.

Heat Treatment of ASTM A269 316L Stainless Steels and Tubes

Solution Treatment (Annealing) – Heat to 1010-11200C and cool rapidly. These grades cannot be hardened by thermal treatment.

Delivery: Within 10-25days or asap if we have enough stock

Types of Packaging:
•- Bundles (hexagonal)
•- Wooden Boxes
•- Crates (steel/wooden)
•- Special crates for U-Bend tubes with each radius separated
•- Packaging for SS 316L ASTM A269 as per customer's requirements

Special Features:
•- Each bundle covered with plastic for protection against extreme weather.
•- End of SS 316L ASTM A269 protected by plastic caps.
•- Bundles strapped with plastic strips.
•- Each radius of U-Bend tube separated by a separator.
•- Packaging list (laminated) placed with box/crate.

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