Views: 168 Author: Site Editor Publish Time: 2022-12-12 Origin: Site
The customer send inquiry about grilled bind flanges in ANSI/ASME B16.5 ASTM A350 LF2 / A182 F316L , 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.
| 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 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.
| Element | C | Mn | P | S | Si | Ni | Cr | Mo | Cu | Nb | V | N |
| Weight % | ≤ 0.30 | 0.60~1.35 | ≤ 0.035 | ≤ 0.040 | 0.15~0.30 | ≤ 0.40 | ≤ 0.30 | ≤ 0.12 | ≤ 0.40 | ≤ 0.02 | ≤ 0.08 |
| 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 |
A182 F316 /F316L ASME B16.5 Flange composition & Mechanical Properties
F316/316L 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
composition Chemistry
| Ni | Cr | Mo | Mn | Si | C | S | P | N | Fe | |
| MIN | 10.0 | 16.0 | 2.0 | – | – | – | – | – | – | – |
| MAX | 14.0 | 18.0 | 3.0 | 2.0 | 0.75 | 0.03 | 0.03 | 0.045 | 0.1 | Balance |
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 | – | – | – |
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.
