ASTM A355 Large diameter Seamless steel pipe

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What is ASTM A355 Large diameter Seamless steel pipe?

ASTM A355 stainless steel is a semi-austenitic precipitation hardening stainless steel in the American standard.
The full name "ASTM A335/A335M-2018" means "ferritic alloy tube for high temperature use".
The outer diameter of large-diameter stainless steel pipes is between (300mm-1200mm), and the wall thickness is (10mm-50mm). It can also be divided into: thick-walled large-diameter stainless steel pipes, and thin-walled large-diameter stainless steel pipes.

Application of ASTM A355 Large Diameter Stainless Steel Pipe

Widely used in high-temperature, high-pressure, flammable and explosive pipelines of petroleum refining and chemical equipment, especially the direct heating pipes of heating furnaces, the medium temperature can reach 550~600℃.

chemical composition of ASTM A355 Large diameter Seamless steel pipe

Grade	C	Mn	P	S	Si	Mo
P1	0.10-0.20	0.30-0.80	0.025	0.025	0.10-0.50	0.44-0.65
P2	0.10-0.20	0.30-0.61	0.025	0.025	0.10-0.30	0.44-0.65
P5	0.15max	0.30-0.60	0.025	0.025	0.50max	0.45-0.65
P5b	0.15max	0.30-0.60	0.025	0.025	1.00-2.00	0.45-0.65
P5c	0.12max	0.30-0.60	0.025	0.025	0.50max	0.45-0.65
P9	0.15max	0.30-0.60	0.025	0.025	0.25-1.00	0.90-1.10
P11	0.05-0.15	0.30-0.60	0.025	0.025	0.50-1.00	0.44-0.65
P12	0.05-0.15	0.30-0.61	0.025	0.025	0.50max	0.44-0.65
P15	0.05-0.15	0.30-0.60	0.025	0.025	1.15-1.65	0.44-0.65
P21	0.05-0.15	0.30-0.60	0.025	0.025	0.50max	0.80-1.06
P22	0.05-0.15	0.30-0.60	0.025	0.025	0.50max	0.87-1.13
P23	0.04-0.10	0.10-0.60	0.030max	0.010max	0.50max	0.05-1.30

ASTM A355 Large diameter Seamless steel pipe of mechanical property

Mechanical properties	P1,P2	P12	P23	P91	P92,P11	P122
Tensile strength	380	415	510	585	620	620
Yield strength	205	220	400	415	440	400

ASTM A355 Large diameter Seamless steel pipe Product Introduction

Application	Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, OIL PIPE, Chemical Fertilizer Pipe, Structure Pipe, Other
Alloy Or Not	Is Alloy
Section Shape	Round
Special Pipe	API Pipe, Thick Wall Pipe
Thickness	2-50mm
Standard	ASTM
Length	Customer's Request
Grade	A333GR6
Surface Treatment	Hot Rolled
Tolerance	±1%
Processing Service	Welding, Punching, Cutting, Bending
Oiled or Non-oiled	Non-oiled
Invoicing	by actual weight
Delivery Time	15-21 days
Product name	Seamless Pipe
Technique	Cold Rolled Hot Rolled
Keyword	Seamless Pipe
Usage	Construction Structure
MOQ	10 tons
Quality	High Quality
Type	Pipe

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