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ASTM A350 LF2 & SS 316 Blind Flanges Order from Kyrgyz Customer

Views: 185     Author: Site Editor     Publish Time: 2022-12-12      Origin: Site

The customer send inquiry about grilled blind flanges in ANSI/ASME B16.5 ASTM A350 LF2 / A182 F316 , after replying them with quotation,they didn’t have any comment on it during the first several weeks .

However, they kept asking me some question about orders which is not ours, like: I consulted other suppliers about ANSI/ASME B16.5 ASTM A350 LF2 Flanges ,why couldn't they offer me quotation....Because we also manufacture the items they have question with, I confirmed these questions with our factory and solved their queries.In the end, I get several purchase orders from the customer.

Order List:

Description of  Goods

Quantity

Unit

Blind Flange,GR.LF2,RF,CL900,DN200,1/2INNPT

20

PCS

Blind Flange,GR.LF2,RF,CL300,DN40,1/2NPT 

10

PCS

Blind Flange.LF2,RF,LT,CL300,DN50,1INNPT 

40

PCS

Blind Flange,GR.LF2,RF,LT,CL300,DN40,3/4INNPT 

10

PCS

Blind Flange,GR.LF2,RF,LT,CL150,DN40,1/2INNPT 

10

PCS

Blind Flange,GR.LF2,RF,LT,CL1500,DN40,1INNPT

10

PCS

Blind Flange,GR.LF2,RF,LT,CL300,DN50,1/2INNPT 

30

PCS

Blind Flange,GR.LF2,RF,LT,CL600,DN50,1/2INNPT

20

PCS

Blind Flange,GR.LF2,RF,LT,CL300,DN50,2INNPT

100

PCS

Blind Flange,LF2,RF,CL300/600,1/2INNPT,DN15 

30

PCS

Blind Flange,LF2,RF,CL300,1/2INNPT,DN150 

10

PCS

Blind Flange,A350 GR.LF2,RF,LT,CL900,DN200

20

PCS

Blind Flange,ASTM A 182 F316/316L,RF,CL300,DN20

40

PCS

TOTAL

26

PCS

ANSI/ASTM B16.5 A350 LF2 Flanges

Inspection Service of ASTM B16.5 A350 Blind LF2 Flanges


三排

Package Service of ASTM B16.5 A350 Blind LF2 Flanges

Summary: As you can see, the items of this order are all  ANSI/ASME B16.5 ASTM A350  LF2 flanges and ASTM A182  F316 flanges,here are their detailed specification of manufacturing

ASTM A350 GRADE LF2:

The ANSI/ASME B16.5 ASTM A350 LF2 blind flanges is a forged carbon/ low-alloy steel  forged flanges, this material is also for forged fittings and valves intended primarily for low-temperature service and requiring notch toughness testing.

Chemical Composition Requirements

CHEMICAL

LIMITS

C

Mn

P

S

Si

Cu

Ni

Cr

Mo

V

Nb

ASTM A350 LF2

MIN


0.60



0.15







MAX

0.30

1.35

0.035

0.040

0.35

0.40

0.40

0.30

0.12

0.08

0.02

The control of these chemical compositions is crucial to ensuring the performance of steel. For example, the control of carbon content can affect the strength and toughness of steel; manganese can improve the strength and hardness of steel; and low phosphorus and sulfur content can help improve the toughness and corrosion resistance of steel.

ANSI/ASME B16.5 ASTM A350 LF2 Blind Flange Mechanical Properties

Item

Tensile Strength,ksi [MPa]

Yield strength,ksi [MPa], min.

ELr,min. %

ELs,min. %

ELc,min. %

Reduction of Area, min. %

Hardness,max. HBW

Value

70-95 [485–655]

36 [250]

22

30

48t + 15

30

197

Yield strength is the stress value when the material begins to undergo obvious plastic deformation. It is an important indicator to measure the material's ability to resist deformation. When the external force applied to the material exceeds the yield strength, the material will undergo irreversible plastic deformation.

ANSI/ASME B16.5 ASTM A182 GRADE F316

A182 F316 /F316L ASME B16.5 Flange composition & Mechanical Properties

SS316 is the most commonly used austenitic stainless steel in the chemical process industry. The addition of molybdenum increases general corrosion resistance, improves chloride pitting resistance and strengthens the alloy in high temperature service. Through the controlled addition of nitrogen it is common for 316/316L to meet the mechanical properties of 316 straight grade, while maintaining a low carbon content.Flanges in material A350 LF2 is better than it is in A182 F316/316L in every term.

A182 F316 /F316L

Chemical Composition

CHEMICAL

LIMITS

C

Mn

P

S

Si

Ni

Cr

Mo

N

ASTM A182 F316

MIN






10.0

16.0

2.00


MAX

0.08

2.00

0.045

0.030

1.00

14.0

18.0

3.00

0.01

Chromium is the main alloying element in stainless steel. It can form a dense oxide film on the surface of steel and improve the corrosion resistance of steel. The chromium content in F316 is 16.00-18.00%, which makes it have good corrosion resistance.

Nickel can improve the toughness and corrosion resistance of stainless steel, and also improve its processing and welding properties. In F316, the nickel content is 10.00-14.00%.

Physical Properties

Density: 0.285 lb/inch3
Poisson’s Ratio: 0.3
Electrical Resistivity: 445 Ohm-circ mil/ft

Temperature, °F

70

212

932

1832

Coefficient* of Thermal Expansion, in/in°F x 10-6

9.2

10.1

10.8

Thermal Conductivity Btu • ft/ft2 • hr • °F

7.8

Modulus of Elasticity Dynamic, psi x 106

29

SS316 Blind Flanges Mechanical Properties

Representative Tensile Properties

Ultimate Tensile Strength, ksi

0.2% Yield Strength, ksi

Elongation, %

Hardness MAX, Brinell

75

30

40

217

We are manufacture of all kinds of flange(Blind flanges,Socket Weld flange,Slip On flanges,Weld Neck flange,Threaded flanges,Lap Joint Flanges,etc.) .

Specification of ASME B16.5 Flanges

Sealing Face

RF, FF, FTJ

Size Range

1/2” - 48” / DN15 - DN1200

Pressure Rating

Class 150, 300, 600, 900, 1500, 2500lb

Carbon Steel

ASTM A105 / A105N

Low Temp Carbon Steel

ASTM A350 LF2 flanges

Pipeline Steel

ASTM A694 F42 / 46 / 56 / 60 / 65

Alloy Steel

ASTM A182 F11 / 12 / 5 / 9 / 91 / 92

Stainless Steel

ASTM A182 F304/304L/304H, 316/316L, 310S, 317,347,904L

Duplex Stainless Steel

ASTM A182 F51, F53, F44

First-rate service is always the goal we want to guarantee during our work,even if your demand might be beyond our duty,we would try our best to meet your inquiry.


CONTACT US
Tel: (+86) 372-2155516
Mobile: (+86) 18625862121
Email:order@zzsteels.com
Contact: Jerry Zhao
Address: No 888 Xigangshen Road Jiading Shanghai

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