"China Hot Rolled ASTM A335 P22 Alloy Steel Seamless Tubes factory"

 

Specification:	ASTM A335 P22 Alloy Stainless Steel Seamless Pipes	Application:	Boiler Pipe, Chemical Fertilizer Pipe, Structure Pipe
Technique:	Hot Rolled	Surface Treatment:	Black Painted
Shape:	Round	Certification:	ISO,SGS,BV,ISO & SGS,ISO/CE/SGS
Length:	6 Meters Or Customized	Package:	Standard Seaworthy Package
High Light:	ASTM A335 Alloy Steel Seamless Tubes ,  P22 Alloy Steel Seamless Tubes ,  Hot rolled Alloy Steel Seamless Tubes

 

 

ASTM A335 P22 Alloy Stainless Steel Seamless Pipes

 

We are one of the biggest manufactures of stainless steel & duplex steel & alloy steel tubes and pipes in China. With development more than 20 years, we have accumulated a great many clients all around the world and Yuhong products also won the great praise among the customers.

 

What is ASTM a335?

ASME SA335 / ASTM A335 , Chrome-Moly pipe is a seamless ferritic Alloy-Steel Pipe produced in nominal or minimum wall thickness for high temperature service. Pipe ordered to this specification shall be suitable for bending, flanging, similar forming operations and for fusion welding.

 

What is p22 material?

A335/SA335 Grade P22 Alloy Steel Seamless Pipes are Carbon steel pipes with addition of chromium, molybdenum, and sometimes vanadium. Chromium, or chrome, improves high-temperature strength, increases oxidation resistance and raises the tensile, yield and hardness at room temperatures.

 

P22 Pipe Chemical Requirements

C, %	Mn, %	P, %	S, %	Si, %	Cr, %	Mo, %
0.015 max	0.30-0.61	0.025 max	0.025 max	0.50 max	1.90-2.60	0.87-1.13

 

P22 Pipe Mechanical Properties

Tensile Strength, MPa	Yield Strength, MPa	Elongation, %
415 min	205 min	30 min

 

ASTM A335 Gr P22 Equivalent Material

ASTM	ASME	Equivalent material	JIS G 3458	UNS	BS	DIN	ISO	ABS	NK	LRS
A335 P22	SA335 P22	T22, 10CrMo910, 10CrMo9-10, 1.7380, 11CrMo9-10, 1.7383	STPA 24	K21590	3604 P1 622	17175 10CrMo910	2604 II TS34	ABS 13	KSTPA 24	Sec 22-1/4Cr1Mo410

 

Heat Treatment Requirements

	P5, P9, P11, and P22
Grade	Heat Treatment Type	Normalizing Temperature Range F [C]	Subcritical Annealing or Tempering Temperature Range F [C]
P5 (b,c)	Full or Isothermal Anneal
	Normalize and Temper		1250 [675]
	Subcritical Anneal (P5c only)		1325 - 1375 [715 - 745]
P9	Full or Isothermal Anneal
	Normalize and Temper		1250 [675]
P11	Full or Isothermal Anneal
	Normalize and Temper		1200 [650]
P22	Full or Isothermal Anneal
	Normalize and Temper		1250 [675]
P91	Normalize and Temper	1900-1975 [1040 - 1080]	1350-1470 [730 - 800]
	Quench and Temper	1900-1975 [1040 - 1080]	1350-1470 [730 - 800]

 

Tensile Requirements

Seamless	ASTM A335 P5	ASTM A335 P9	ASTM A335 P11	ASTM A335 P22	ASTM A335 P91
Tensile Strength, min., psi
ksi	60	60	60	60	85
MPa	415	415	415	415	585
Yield Strength, min., psi
ksi	30	30	30	30	60
MPa	205	205	205	205	415

 

Application

• Pharmaceutical equipment
• Chemical equipment
• Sea water equipment
• Heat exchangers
• Condensers
• Pulp and paper industry
• Off-shore oil drilling companies
• Power generation
• Petrochemicals
• Gas processing
• Specialty chemicals