ASTM A423 Gr 1 Carbon Steel Seamless Pipe Oil Gas Chemical Heating Power Plants

• After-sales Service: Supplied
• Warranty: 30 Years
• Type: Seamless
• Technique: Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Varnishing
• Model NO.: seamless
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Wall Thickness: 1.24-63.55mm
• Length: Random
• End Connection: Plain End/Bevel End
• Coating: Oil/Varnish/3PE/Epoxy
• Caps: as Customer′s Requirement
• Certificate: ISO/ CE/ TUV/ SGS...
• Test1: Chemical Component Analysis
• Test2: Mechanical Properties
• Test3: Technical Properties
• Test4: Exterior Size Inspection
• Test5: Hydrostatic Test
• Test6: X-ray Test
• Applicaiton: Oil, Gas and Water Transportation
• Applicaiton2: Piling, Drilling
• Applicaiton3: Construction, Low-Pressure Liquid Delivery
• Transport Package: Wooden Box/ PVC Bags/ Steel Strips/Plastic Plates
• Specification: OD 10.3-762mm
• Trademark: EZS
• Origin: China
• HS Code: 73041920
• Production Capacity: 200000 Tons/Year

Product Description

 

Detailed Product Description

Standard:	ASTM A423	Certification:	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Test:	ET, UT, HT, PT	Type:	Carbon
O.D.:	1/ 2" NB To 36"NB	W.T.:	SCH 10 To SCH XXS

 

 

ASTM A423 Gr 1 Carbon Steel Pipe Oil Gas Chemical Heating Power Plants

 

 

Abstract of ASTM A423 Gr 1

 

 

ASTM A423 Grade 1 pipe is a grade of carbon steel known as weathering steel. The material is characterised by the formation of an oxide layer when exposed to harsh weather conditions. The oxide layer that forms on the surface is known as copper green. Once the oxide layer has formed, it resists contact with the atmosphere, so the core of the material remains free from corrosion for an extended period of time. This is also known as Corten Steel GR.1 ERW Pipe and it is used in open weather. Most outdoor systems exposed to the weather use this type of pipe.
 

 

Chemical Composition of ASTM A423 Gr 1

 

Grade	C	Si	Mn	P	S	Cr	Cu	V	Ni
COR-TEN A	0.12	0.25-0.75	0.20-0.50	0.07-0.15	0.03	0.50-1.25	0.25-0.55	-	0.65

 
 
 

COMPOSITION	Grade 1	Grade 2
Carbon, max	0.15	0.15
Manganese, max	0.55	0.50-1.00
Phosphorus	0.06-0.16	0.04 max
Sulfur, max	0.060	0.05
Silicon, min	0.10	…
Copper	0.20-0.60	0.30-1.00
Chromium	0.24-1.31	…
Nickel	0.20-0.70	0.40-1.10
Molybdenum, min	…	0.10

Mechanical Properties of  ASTM A423 Gr 1

 

Grade	Minimum yield point ReH Mpa *)	Tensile strength Rm MPa	Minimum elongation A (Lo=5.65 √So) %
COR-TEN A	355	470-630	20

 
 
 
Applications
 
 
Oil & Gas
Chemical
heating
Power Plant

Hot roll technics


Manufacturing Process

ERW pipe is manufactured by cold forming a flat steel strip into a rounded tube and passing it through a series of forming rollers to obtain a longitudinal seam. The two edges are then simultaneously heated with a high frequency current and squeezed together to produce a bond. The longitudinal ERW seam does not require filler metal while impurities in the heat affected zone are extruded during the welding process

Production Line



Packing and Delivery