Home

Business

Business

Business

Products

Products

Products

Solution

VR

News

News

News

About Us

Contact Us

Home > Steel Pipe> ASTM A213 Alloy Steel Seamless Tubes

ASTM A213 Alloy Steel Seamless Tubes image

ASTM A213 Alloy Steel Seamless Tubes

ASTM A213 specification covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes, designated Grades T5, T9, T11, T12, T22, T91, etc. A213 is often called chrome moly tube because of the chemical makeup of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases the strength of steel as well as the elastic limit, resistance to wear, impact qualities, and hardenability. Moly increases the resistance to softening, restrains grain growth and makes chromium steel less susceptible to embrittlement. Moly is the most effective single additive that increases high-temperature creep strength.

A213 Alloy Steel Seamless Tubes Chrome Moly Alloy A213 / SA213 Heater Tubes ASTM A213 GRADE T5 TUBE ASTM A213 GRADE T12 TUBE ASTM A335 GRADE P5 Pipe ASTM A335 GRADE P12 Pipe ASTM A213 GRADE T9 TUBE ASTM A213 GRADE T22 TUBE ASTM A335 GRADE P9 Pipe ASTM A335 GRADE P22 Pipe ASTM A213 GRADE T11 TUBE ASTM A213 GRADE T91 TUBE ASTM A335 GRADE P11 Pipe ASTM A335 GRADE P91 Pipe

Introduction
Parameters
Service

ASTM A213 Alloy Steel Seamless Tubes

ASTM A213 specification covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes, designated Grades T5, T9, T11, T12, T22, T91, etc. A213 is often called chrome moly tube because of the chemical makeup of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases the strength of steel as well as the elastic limit, resistance to wear, impact qualities, and hardenability. Moly increases the resistance to softening, restrains grain growth and makes chromium steel less susceptible to embrittlement. Moly is the most effective single additive that increases high-temperature creep strength. It also enhances the corrosion resistance of steel, and inhibits pitting. Chromium (or chrome) is the essential constituent of stainless steel. Any steel with 12% or more Chrome is considered stainless.

ASTM A213 Alloy Steel Seamless Tubes Specification

Specification	Details
Outside Diameter (OD) Range	12.7 mm – 127 mm (0.5″ – 5″)
Wall Thickness	0.9 mm – 12.7 mm (0.035″ – 0.500″)
Lengths Available	6 meters (20 ft), 12 meters (40 ft), or custom lengths
Material Grade	Chrome-Moly T5, T9, T11, T12, T22, T91
End Finishes	Bevel End (BE), Plain End (PE), or Threaded
Surface Protection	Usually varnished; other coatings available

Specification Parameters

Basic Information

ASTM A213 Alloy Steel Seamless Pipes Chemical Compositions

Composition, %
Grade	UNS Designation	Carbon	Manganese	Phosporus	Sulphur	Silicon	Nickel	Chromium	Molybdenum	Vanadium	Niobium	Aluminium	Other Elements
T5	K41545	0.15	0.30-0.60	0.025	0.025	0.50	…	4.00-6.00	0.45-0.65	…
T9	K90941	0.15	0.30-0.60	0.025	0.025	0.03	…	1.00-1.50	0.90-1.10	…
T11	K11597	0.05-0.15	0.30-0.60	0.025	0.025	0.50-1.00	…	1.00-1.50	0.44-0.65	…
T22	K21590	0.05-0.15	0.30-0.60	0.025	0.025	0.50	…	1.90-2.60	0.87-1.13	…
T91	K90901	0.07-0.14	0.30-0.60	0.02	0.010	0.20-0.50	0.4	8.0-9.5	0.85-1.05	0.18-0.25	0.06-0.10	0.02	Ti 0.01 ZR 0.01

Heat Treatment Requirements of A213 Alloy Steel Seamless Tubes

	T5, T9, T11, T22 and T91
Grade	Heat Treatment Type	Normalizing Temperature Range F [C]	Subcritical Annealing or Tempering Temperature Range F [C]
T5 (b,c)	Full or isothermal Anneal
	Normalize and Temper	*****	1250 [675]
	Subcritical Anneal (T5c only)	*****	1325 – 1375 [715 – 745]
T9	Full or isothermal Anneal
	Normalize and Temper	*****	1250 [675]
T11	Full or isothermal Anneal
	Normalize and Temper	*****	1200 [650]
T22	Full or isothermal Anneal
	Normalize and Temper	*****	1250 [675]
T91	Normalize and Temper	1900-1975 [1040 – 1080]	1350-1470 [730 – 800]
	Quench and Temper	1900-1975 [1040 – 1080]	1350-1470 [730 – 800]

Service Support

ASTM A213 Alloy Steel Seamless Tubes

Types of Packaging:

- – Bundles (hexagonal)
- – Wooden Boxes
- – Crates (steel/wooden)
- – Special crates for U-Bend tubes with each radius separated
- – Packaging for A213 Grade T5 Alloy Steel Seamless Tubesas per customer’s requirements

Special Features:

- – Each bundle covered with plastic for protection against extreme weather.
- – End of A213 Grade T5, T9, T11, T22, T91 Alloy Steel Seamless Tubesprotected by plastic caps.
- – Bundles strapped with plastic strips.
- – Each radius of U-Bend tube separated by a separator.

Copyright © 2014-2024 Gnee Group. All rights reserved. - Sitemap