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 |
Inspection Service of ASTM B16.5 A350 Blind LF2 Flanges
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 | 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 PropertiesItem | 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.
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.