ASTM A266 SA 266 Gr 2 Sorf Wn Bl Flange

• Standard: ANSI, DIN, GB, JIS, GOST, BSW
• Type: Welding Flange
• Material: Alloy Steel
• Structure: Flanges
• Connection: Flanged
• Sealing Surface: RF
• Model NO.: MD-1267
• Manufacturing Way: Forging
• Size: 1/2" - 72"
• Flange Type: Weld Neck, Slip on, Blind, Plate, Thread
• Loading Port: Chinese Main Port
• Delivery Time: 7-40 Days Ex Mill
• Payment: L/C T/T
• Specical: Forged
• Transport Package: Standard Sea-Worthy Package
• Specification: 2"~64"
• Trademark: Kingmetal
• Origin: China
• Production Capacity: 200 Ton / Month

Product Description

ASTM A266 SA 266 Gr 2 SORF WN BL Flange 

ASTM A266 Standard Specification
 

Specifications	ASTM A266 Flanges
Supporting Material	Gasket/ Ring Joint/ Flange Bolts
Production Technique	Forged/ Heat treated and machined
Forging Methods	Forging & Casting, Rolling & Cutting
Manufacturer of	Forged/ Threaded/ Screwed / Plate
Transportation	Ocean And Air
Face Type	RTJ/ RF/ FF
Schedule Chart	SCH 5S To XXS.
Length	NPS 1/2" Inch To NPS 48" Inch

Manufacturing ASTM A266 Carbon Steel Forgings For Pressure Vessel Components In Various Pressure Class, Check Sizes And Dimensions

ASTM A266 Grade 2 Flanges Chemical Composition Requirements

Item	Chemical Requirements for ASTM A266 Flanges, %
	Gr. 1 & 2	Gr. 3	Gr. 4
P	≤ 0.025	≤ 0.025	≤ 0.025
S	≤ 0.025	≤ 0.025	≤ 0.025
C	≤ 0.30	≤ 0.35	≤ 0.30
Mn	0.40~1.05	0.80~1.35	0.80~1.35
Si	0.15~0.35	0.15~0.35	0.15~0.35

 

ASTM A266 Grade 4 Flanges Mechanical Properties

 

Tensile Requirements	Gr. 1	Gr. 2 & 4	Gr. 3
EL. in 2" or [62.5 mm] minimum %	23 [21]	20 [18]	19 [17]
R.o.A minimum %	38	33	30
T.S minimum ksi [Mpa]	60~85 [415~585]	70~95 [485~655]	75~100 [515~690]
Y.S minimum ksi [Mpa]	30 [205]	36 [250]	37.5 [260]

 

ASTM A266 Flanges Material Standard

 

ASTM A266/ASME SA266	Specification for Carbon Steel Forgings for Pressure Vessel Components
Material Grade	Grade 1	Grade 2	Grade 3	Grade 4

ASME SA266 Flanges Hardness

 

ASTM A266	Brinell Hardness HBW
Grade 1	121~170
Grade 2	137~197
Grade 3	156~207
Grade 4	137~197