ASTM A350 Gr Lf2 Blind Flange

• Standard: ANSI, DIN, GB, JIS, GOST, BSW
• Type: Welding Flange
• Material: Carbon Steel
• Structure: Flanges
• Connection: Flanged
• Sealing Surface: RF
• Model NO.: KM-20240703
• Manufacturing Way: Forging
• Pressure: Class 150~Class 2500
• Flange Type: Blind Flange
• Size: 1/2" to 48"
• Materials: Lf2
• Standards: ASTM A350
• Packaging: in Wooden Boxes or Pallets
• Transport Package: Seaworthy Export Wooden Cases or Pallet
• Specification: 1/2" TO 48"
• Trademark: KINGMETAL
• Origin: China
• HS Code: 73079100
• Production Capacity: 1000 Tons Per Month

Product Description

ASTM A350 GR LF2 Blind flange

Specifications : ASTM A350 LF2 / ASME SA350

Dimensions : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Material : ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2

Size : 1/2″ to 48″

Class / Pressure : 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

ASTM A350 - LF2 composition & Mechanical Property

CHEMICAL ANALYSIS (ASTM A350M)

STEEL DESIGNATION	CHEMICAL COMPOSITION
SYMBOLIC	C max	Mn	Si	P max	S max	Cr max	Mo max	Cu max	Ni max	V max	Nb max
ASTM A350 - LF2	0,30	0,60 -1,35	0,15- 0,30	0,035	0,040	0,30	0,12	0,40	0,40	0,08	0,02

MECHANICAL CHARACTERISTICS (ASTM A350M)

STEEL
SYMBOLIC	NUMERIC	Re min	Rm	A min	Z min	Kv -46°C cl.1
		N/mm^2		%	%	J
ASTM A350 - LF2		250	485 ÷ 655	22	30	27

M.T. COLORATION	QUALITY	HEAT TREATMENT	SURFACE
	ASTM A350 - LF2	Normalised	rolled peeled h13 forged turned

PROPERTIES	Imperial
TS Min psi (Mpa)	70,000 (485)
YS Min psi (Mpa)	36,000 (250)
EL (2″ Min)	22%
RA Min	30%
Hardness, Bhn	Max 197
-50ºF Charpy	Min Impact
Energy F t/Lb (J):-
Set of 3 Specimen*	15 (20)
For One Specimen	12 (16)