ASTM A268 TP430Ti Ferritic Martensitic Stainless Steel Seamless Tube

ASTM A268 specification​​ covers various grades of nominal wall thickness stainless steel tubes suitable for general corrosion resistance and high-temperature environments. Most of these grades are commonly referred to as "straight chromium" types, characterized by their ​​ferromagnetic properties​​. ​​TP430Ti (UNS S43036)​​ is an upgraded version of the standard ​​430 (UNS S43000)​​, enhanced with ​​titanium (Ti) to improve intergranular corrosion resistance and weldability​​. It belongs to the ​​titanium-stabilized ferritic stainless steel​​ family.

 

​​GNEE​​ supplies high-quality ​​ASTM A268 TP430Ti ferritic-martensitic stainless steel seamless tubes​​. This material is stabilized with ​​titanium (Ti)​​ and manufactured through ​​cold rolling/cold drawing or hot rolling processes​​. The tubes are available with ​​bright (BA), pickled (No.1), or polished surface finishes​​, featuring ​​smooth inner walls and high dimensional accuracy​​. They also support ​​custom processing services such as cutting and bending​​, making them suitable for applications in ​​high-temperature environments​​, including ​​decorative tubes, home appliance components, automotive exhaust pipes, and industrial heat exchangers​​.

 

 

ASTM A268 TP430Ti Ferritic Stainless Steel Seamless Tube Specifications

Item	Description
Standard	ASTM A268 / ASME SA268
Grade	TP430Ti (Stabilized Ferritic Stainless Steel)
Equivalent Designation	EN 1.4510 / X6CrTi17 / SUS 430Ti
Material Type	Ferritic stainless steel with titanium stabilization
Manufacturing Type	Seamless / Welded (Cold drawn or cold rolled)
Outer Diameter (OD)	6 mm – 114 mm
Wall Thickness (WT)	0.5 mm – 8.0 mm
Length	6000 mm, 12000 mm or as required
Surface Finish	Bright Annealed (BA), Pickled, Polished, or Custom
Tolerances	As per ASTM A450 / EN ISO 1127
End Types	Plain end, beveled end, or threaded
Delivery Condition	Annealed / Pickled / Bright Annealed
Certification	EN 10204 3.1 / 3.2, ISO, SGS, BV approved
Application	Heat exchangers, exhaust systems, automotive components, industrial fluid transport

 

ASTM A268 TP430ti Stainless Steel Seamless Tube Chemical Composition

Element	C	Mn	Si	P	S	Cr	Ni
TP410	0.15	1.0	1.0	0.040	0.030	11.5-13.5	0.75

 

ASTM A268 TP430ti Stainless Steel Seamless Tube Mechanical Properties

Tensile Stress, Mpa	Yield Stress, MPa	Elongation, %
60[415]	35[240]	20

 

Main Applications of ASTM A268 TP430Ti Seamless Stainless Steel Pipe

High-temperature oxidation-resistant components: automotive exhaust system furnace heat exchangers, burner sprays.

Corrosion-resistant containers and piping: nitric acid storage and transportation equipment; food processing equipment; wine fermentation tanks.

Architectural Decoration: Corrosion-resistant roofing/curtain walls; cost-effective alternative to 304 stainless steel.

 

Quality Assurance
From raw materials to final products, we monitor each process containing the manufacturing process, quality control ensures our tubes have high quality. All the tubes should be inspected as per ASME SA268 / ASTM A1016.

Eddy Current And Air Under Water Test
The tests include destructive tests and nondestructive tests. For TP316L welded tubes, eddy current test and air underwater test are usually conducted according to standard.

Mechanical Properties
Mechanical properties tests are also required for checking the quality, such as flattening test, flaring test, flange test, and reverse bend test, they are all destructive tests.

Packaging & Delivery

Packaging: Moisture-proof, shock-resistant packaging with wooden crates or plastic wrap for secure delivery.

Lead Time: 7–15 days for stock items, 20–30 days for custom orders.

Minimum Order Quantity (MOQ): 500 kg for sample orders; bulk discounts available.

Payment Terms: T/T, L/C, PayPal, or flexible terms for long-term customers.