A213 T11 T12 T22 A335 P11 P22 High Pressure Alloy Steel Pipe

A213 T11 T12 T22 A335 P11 P22 High Pressure Alloy Steel Pipe | ASTM Heat Resistant Alloy Pipe

ASTM‑standard whole‑process production, stable high‑temperature strength for long‑time continuous operation
Excellent thermal stability and anti‑oxidation performance under high‑pressure working condition
Complete inspection system including hydrostatic test & multi‑item non‑destructive testing
Diverse shape options: round, square, rectangular and custom special shapes
Wide size coverage range, custom cutting service for global petrochemical & energy projects

Product Overview

ASTM A213 T11 T12 T22 and A335 P11 P22 are widely‑applied seamless Cr‑Mo alloy steel pipes for high‑temperature and high‑pressure service. A213 series focuses on boiler & heat‑exchanger tube; A335 series is designed for high‑temperature process pipeline.

These alloy grades add chromium and molybdenum to improve high‑temperature creep resistance and high‑temperature corrosion resistance. Products are widely used in oil & gas, petrochemical, power generation, heat‑exchanger systems. Our factory supplies standard round pipes, square, rectangular alloy tubes and custom special‑shaped pipes according to customer drawings. All are hot‑rolled or cold‑drawn seamless pipes with full‑set test reports. We export these ASTM alloy pipes to Middle East, North America and Southeast Asia for high‑temperature industrial piping projects.

High Pressure Alloy Steel Pipe

Chemical & Mechanical Property Snapshot

Grade	C (%)	Si (%)	Mn (%)	Cr (%)	Mo (%)	Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)
A213 T11	0.05~0.15	0.50~1.00	0.30~0.60	1.00~1.50	0.44~0.65	≥205	415~585	≥30
A213 T12	0.05~0.15	≤0.50	0.30~0.61	0.80~1.25	0.44~0.65	≥205	415~585	≥30
A213 T22	0.05~0.15	≤0.50	0.30~0.60	1.90~2.60	0.87~1.13	≥205	415~585	≥30
A335 P11	0.05~0.15	0.50~1.00	0.30~0.60	1.00~1.50	0.44~0.65	≥205	415~585	≥30
A335 P22	0.05~0.15	≤0.50	0.30~0.60	1.90~2.60	0.87~1.13	≥205	415~585	≥30

Detailed Technical Specifications

Item	Specification
Product Name	ASTM High‑pressure Heat‑resistant Alloy Seamless Steel Pipe
Material Grades	A213 T11, T12, T22; A335 P11, P22
Executive Standard	ASTM A213, ASTM A335
Product Form	Seamless pipe: Round / Square / Rectangular / Custom special shape
Manufacturing Process	Hot‑rolled seamless / Cold‑drawn seamless
Heat Treatment	Normalizing + Tempering as ASTM requirement
Outer Diameter Range	21.3mm ‑ 406.4mm
Wall Thickness Range	2.0mm ‑ 50mm
Available Length	Random length: 4‑12m; Fixed custom length: 1‑12m
Surface Condition	Black hot‑rolled surface / Anti‑rust oil / Black painting
Pipe End Treatment	Plain end / Bevel end for welding; plastic end caps protection
Mandatory Inspection	Hydrostatic test, Ultrasonic test(UT), chemical analysis, tensile test, hardness test
Optional Inspection	Magnetic particle test(MT), Penetrant test(PT)
Document & Certificate	Mill Test Certificate(MTC), Inspection report, Heat traceability document
MOQ(Minimum Order Quantity)	5 Ton; mixed sizes acceptable upon negotiation
Trade Terms	FOB, CFR, CIF, EXW
Payment Terms	T/T, L/C at sight
Packaging Detail	Both ends fitted with waterproof plastic caps; wrapped with waterproof kraft paper; bundled by high‑strength steel strips; wooden crate / pallet for special‑shaped pipe optional
Lead Time	18‑28 working days against deposit
Additional Available Service	Saw cutting, fixed‑length cutting, surface blasting, logo marking printing, custom‑shape fabrication per drawing

Shape Options

Available Pipe Shapes
Round High‑Pressure Alloy Pipe: Main product for boiler, heat‑exchanger, high‑pressure process pipeline, full Sch40‑Sch160 heavy wall sizes
Square Alloy Steel Pipe: Custom seamless square alloy tube for high‑pressure structural frame, pressure equipment support
Rectangular Alloy Steel Pipe: Custom seamless rectangular alloy profile for heavy‑duty industrial structural components
Special‑Shaped Alloy Pipe: Oval, hexagon and other special cross‑section, non‑standard dimension upon customer drawing

Dimension Reference Table

Outer Diameter	OD (inch)	Wall Thickness	WT (inch)
21.3 mm	0.84″	2.0 ~ 4.0 mm	0.079″ ~ 0.157″
33.7 mm	1.33″	2.5 ~ 6.0 mm	0.098″ ~ 0.236″
42.4 mm	1.67″	3.0 ~ 8.0 mm	0.118″ ~ 0.315″
48.3 mm	1.90″	3.0 ~ 10 mm	0.118″ ~ 0.394″
60.3 mm	2.37″	3.5 ~ 12 mm	0.138″ ~ 0.472″
88.9 mm	3.50″	4.0 ~ 16 mm	0.157″ ~ 0.630″
114.3 mm	4.50″	4.5 ~ 20 mm	0.177″ ~ 0.787″
168.3 mm	6.63″	6.0 ~ 25 mm	0.236″ ~ 0.984″

Product Comparison Table

Grade	Standard	Equivalent Grade	Main Application
A213 T11	ASTM A213	12Cr1MoVG, 10CrMo910	Boiler tube, heat exchanger
A213 T12	ASTM A213	15CrMoG,13CrMo44	Boiler superheater
A213 T22	ASTM A213	12Cr2MoG	High temp boiler tube
A335 P11	ASTM A335	12Cr1MoVG	High temperature process pipeline
A335 P22	ASTM A335	12Cr2MoG	Petrochemical high pressure pipe

App Market

Reliable Steel Coil Solutions For Diverse Industrial Applications

Coal Chemical Syngas Pipeline

High-Pressure Piping for Hydrocracking Units

Main Steam Pipeline of Thermal Power Plant Boilers

Product Packaging

Secure Export Packaging For Safe Handling And Delivery

FAQs

What is difference between A213 and A335 alloy pipe?

A213 is specification for seamless ferritic and austenitic alloy steel boiler & heat‑exchanger tubes. A335 is for seamless ferritic alloy steel pipe for high‑temperature process service.

Can you supply MTC certificate for ASTM alloy pipe?

Yes, original mill test certificate will be provided together with shipment.

MOQ for ASTM high pressure alloy pipe?

MOQ 5 tons, mixed sizes acceptable.

Is hydrostatic test available?

Yes, hydrostatic test can be performed as buyer requirement.

Can you make square & rectangular alloy pipe for high temperature?

Yes, we can produce shaped alloy pipe complying with ASTM standard.

Related Projects

Steel And Metal Materials Supplied To Projects Worldwide.

Learn More

Vietnam Binh Duong Foreign-Invested Industrial Park Project

A large-scale foreign-invested smart manufacturing industrial park was developed in Binh Duong Province, Vietnam. The project included three large-span steel structure workshops w…

Texas Commercial Warehouse & Logistics Center Project, USA

A large-scale e-commerce logistics center was constructed near Houston, Texas, USA, featuring a single-story large-span steel structure designed for modern warehousing and distribu…

Middle East Petrochemical EPC Project

A petrochemical EPC project in the Middle East involved the construction of new raw material storage tanks and shell-and-tube heat exchanger systems for an oil refining supporting …

A213 T11 T12 T22 A335 P11 P22 High Pressure Alloy Steel Pipe | ASTM Heat Resistant Alloy Pipe