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Polished Surface ASTM A213 Standard Seamless Steel Tube with 3.2-127mm OD for

China Polished Surface ASTM A213 Standard Seamless Steel Tube with 3.2-127mm OD for

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Polished Surface ASTM A213 Standard Seamless Steel Tube with 3.2-127mm OD for

MOQ： 1Ton
Price： 800-1000 USD/Ton
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Payment Terms	L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability	60000 Ton/Tons per Year
Delivery Time	20-30days upon products
Packaging Details	In bundles or in wooden boxes.
Material	Seamless ferritic / austenitic alloy steel tube
Standard	ASTM A213 / A213M-18
Typical Grades	TP304, TP304L, TP316L, TP321, TP347H
Outside Diameter	3.2-127 mm
Wall Thickness	0.4-12.7 mm
Length	1-12 m, custom cut lengths available
Heat Treatment	Austenitic grades solution annealed / solution treated, then rapid cooled; typical minimum heat-treatment temperature is 1040°C for TP304, TP304L, TP316L and TP321, and 1100°C for TP347H
Test Options	Hydrostatic test or nondestructive electric test on each tube
Brand Name	TORICH
Model Number	A213/A213M-18
Certification	ISO9001, TS16949
Place of Origin	ZHEJIANG, CHINA

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Product Specification


Payment Terms	L/C,D/A,D/P,T/T,Western Union,MoneyGram	Supply Ability	60000 Ton/Tons per Year
Delivery Time	20-30days upon products	Packaging Details	In bundles or in wooden boxes.
Material	Seamless ferritic / austenitic alloy steel tube	Standard	ASTM A213 / A213M-18
Typical Grades	TP304, TP304L, TP316L, TP321, TP347H	Outside Diameter	3.2-127 mm
Wall Thickness	0.4-12.7 mm	Length	1-12 m, custom cut lengths available
Heat Treatment	Austenitic grades solution annealed / solution treated, then rapid cooled; typical minimum heat-treatment temperature is 1040°C for TP304, TP304L, TP316L and TP321, and 1100°C for TP347H	Test Options	Hydrostatic test or nondestructive electric test on each tube
Brand Name	TORICH	Model Number	A213/A213M-18
Certification	ISO9001, TS16949	Place of Origin	ZHEJIANG, CHINA
High Light	precision stainless steel tubing ，seamless carbon steel tube

Ferritic / Austenitic Alloy Seamless Steel Tube Polishing Surface 3.2 - 127mm OD

ASTM A213/A213M-18 seamless ferritic and austenitic alloy-steel tubes are designed for pressure-bearing heat transfer service where dimensional stability, clean internal surface condition, and reliable elevated-temperature performance matter. In this category, the most commonly specified austenitic grades include TP304, TP304L, TP316L, TP321, and TP347H, covering general heat-exchanger duty, welded low-carbon service, chloride-containing media, and higher-temperature superheater duty. ASTM A213/A213M-18 covers seamless boiler, superheater, and heat-exchanger tubes, with typical supplied sizes extending to 127 mm outside diameter and 0.4-12.7 mm wall thickness; all austenitic grades are supplied in the heat-treated condition.

Specifications

Item	Description
Material	Seamless ferritic / austenitic alloy steel tube
Standard	ASTM A213 / A213M-18
Typical Grades	TP304, TP304L, TP316L, TP321, TP347H
Outside Diameter	3.2-127 mm
Wall Thickness	0.4-12.7 mm
Length	1-12 m, custom cut lengths available
Tolerance Range	According to ASTM A1016/A1016M and order condition; typical cold-finished OD tolerance: 6-30 mm: +0.15 / -0.20 mm, over 30-50 mm: ±0.30 mm, over 50 mm: ±0.75%D; hot-finished OD tolerance: up to 140 mm: ±1.25%D, over 140 mm: ±1.0%D
Straightness	Commercial straightness or special straightness on request
Surface Condition	Polished, pickled, or heat-treated mill surface available; scale-free inspection surface required
Heat Treatment	Austenitic grades solution annealed / solution treated, then rapid cooled; typical minimum heat-treatment temperature is 1040°C for TP304, TP304L, TP316L and TP321, and 1100°C for TP347H
Manufacturing Route	Seamless; hot finished or cold finished, depending on dimensional and surface requirements
Test Options	Hydrostatic test or nondestructive electric test on each tube

Main Characteristics

Wide precision size coverage for process equipment
Typical supply range reaches 3.2-127 mm OD with 0.4-12.7 mm wall, suitable for compact shell-and-tube bundles as well as larger boiler and superheater circuits.
Heat-treated austenitic structure for stable service
ASTM A213 requires austenitic grades to be supplied in the heat-treated condition. Standard minimum solution-treatment temperatures are typically 1040 °C for TP304, TP304L, TP316L, and TP321, while TP347H requires 1100 °C after cold working.
Mechanical baseline suitable for pressure heat-transfer tubing
Minimum tensile / yield / elongation values under ASTM A213 are:
TP304: 515 / 205 / 35%,
TP304L: 485 / 170 / 35%,
TP316L: 485 / 170 / 35%,
TP321: 515 / 205 / 35%,
TP347H: 515 / 205 / 35%.
Grade-specific corrosion and temperature positioning
TP316L contains 2.0-3.0% Mo, improving resistance to pitting and crevice corrosion compared with standard 18-8 grades; TP321 and TP347/347H are stabilized grades intended to reduce sensitization risk after exposure in the carbide precipitation range; TP347H is specifically used where higher creep strength is required above 537 °C / 1000°F.

Our Advantages

Concern: How do you control sensitization and intergranular corrosion in welded or thermally cycled tube service?

We match grade selection to service condition rather than offering one grade for all duties. For welded condensers and exchangers, TP304L / TP316L reduce carbide precipitation risk through low carbon content. For prolonged elevated-temperature exposure, TP321 and TP347H provide stabilized chemistry; 347/347H is specifically recognized for strong resistance to intergranular corrosion after exposure to 427-816 °C, and 347H adds higher creep strength for hotter service.

Concern: How do you ensure dimensional control and inspection reliability on thin-wall seamless tubes?

For tighter dimensional demand, we recommend the cold-finished seamless route, which supports finer OD control than hot-finished tubing. Each tube can be supplied with hydrostatic test or nondestructive electric test, which is especially important for boiler, superheater, and exchanger circuits where leakage risk is unacceptable.

Concern: Which grade is better when the medium contains chlorides or when the duty temperature is high?

We separate the selection by failure mode. For chloride-bearing or mildly aggressive condensate, TP316L is preferred because its 2-3% molybdenum improves pitting and crevice corrosion resistance. For higher-temperature steam-side duty, TP321 and TP347H are better choices because stabilized chemistry and higher creep capability improve reliability under thermal exposure.

Execution Standards

Standard System	Brief Description
ASTM / ASME	ASTM A213 / ASME SA213: seamless ferritic and austenitic alloy-steel tubes for boiler, superheater, and heat-exchanger service
EN	EN 10216-5: seamless stainless steel tubes for pressure purposes; commonly used European route for equivalent austenitic tube grades
GOST	GOST 9941: seamless corrosion-resistant stainless steel tubes, widely used for industrial and heat-resistant applications
JIS	JIS G3463: stainless steel boiler and heat-exchanger tubes
GB	GB/T 13296: seamless stainless steel tubes for boiler and heat exchanger

Application Field

Specific product: Shell-and-tube heat exchanger tube bundle for refinery condensate cooling

For this product type, polished seamless austenitic tubes are selected to improve cleanliness, reduce fouling retention, and maintain stable leak-tight performance under continuous temperature cycling. In chloride-sensitive or more corrosive condensate duty, TP316L is usually preferred; where steam-side temperature is higher, TP321 or TP347H may be specified.

Chemical Composition

Grade	C	Si	Mn	P	S	Cr	Ni	Mo	Ti	Nb+Ta
TP304	≤0.08	≤1.00	≤2.00	≤0.045	≤0.030	18.0-20.0	8.0-11.0	--	--	--
TP304L	≤0.035	≤1.00	≤2.00	≤0.045	≤0.030	18.0-20.0	8.0-12.0	--	--	--
TP316L	≤0.035	≤1.00	≤2.00	≤0.045	≤0.030	16.0-18.0	10.0-14.0	2.0-3.0	--	--
TP321	≤0.08	≤1.00	≤2.00	≤0.045	≤0.030	17.0-19.0	9.0-12.0	--	5×(C+N) to 0.70	--
TP347H	0.04-0.10	≤1.00	≤2.00	≤0.045	≤0.030	17.0-19.0	9.0-13.0	--	--	8×C to 1.10

Mechanical Properties

Grade	Tensile Strength Min. MPa	Yield Strength Min. MPa	Elongation Min. %	Hardness Max.
TP304	515	205	35	192 HBW / 90 HRB
TP304L	485	170	35	192 HBW / 90 HRB
TP316L	485	170	35	192 HBW / 90 HRB
TP321	515	205	35	192 HBW / 90 HRB
TP347H	515	205	35	192 HBW / 90 HRB

Equivalent Grade Reference

ASTM A213 Grade	Approx. EN	Approx. JIS	Approx. GB	Approx. GOST
TP304	1.4301 / 1.4307	SUS304TB	06Cr19Ni10	08X18H10
TP304L	1.4307	SUS304LTB	022Cr19Ni10	03X18H11
TP316L	1.4404	SUS316LTB	022Cr17Ni12Mo2	03X17H14M2
TP321	1.4541	SUS321TB	06Cr18Ni11Ti	12X18H10T
TP347H	1.4912 / 1.4550 family reference	SUS347HTB	07Cr18Ni11Nb	08X18H12B family reference

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Frequently Asked Questions

Q: Are you trading company or manufacturer?

A: manufacturer, also can do trading.

Q: How long is your delivery time?

A: Generally speaking, it is 10-15 days if the goods are in stock, or it is 30-40 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples? is it free or extra?

A: Yes, we could offer the sample for free charge but need pay the cost of freight.

Q: What is your terms of payment?

A: Payment <= 2000USD, 100% in advance. Payment >= 2000USD, 30% T/T in advance, balance before shipment. If you have another question, please feel free to contact with me.

Company Details

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Year Established:

1997 
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Total Annual:

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Employee Number:

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A Professional Steel Pipes Materials Inventor, Manufacturer And Solution Provider TORICH INTERNATIONAL LIMITED is a professional inventor, manufacturer, and solution provider of steel pipe materials, integrating production and international trade, specializing in various precision steel pipes. Esta... A Professional Steel Pipes Materials Inventor, Manufacturer And Solution Provider TORICH INTERNATIONAL LIMITED is a professional inventor, manufacturer, and solution provider of steel pipe materials, integrating production and international trade, specializing in various precision steel pipes. Esta...

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https://www.precision-steeltube.com/

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