ANSI B16.5 Wnrf A694f52/A694f56, /A694f65/A694f70 Forged Flange
TianYuan(HK) International Limited
Shanghai, China
Last Login Date:
Jun 18, 2025
Main Products:
Forged Flange, ASME B16.5 B16.47A/B En1092-1 GOST DIN Flange, Carbon Steel Flange, Stainless Steel Flange, Copper Nickel Flange, ASTM A182 F304/L F316/L Flange, ASTM A105 A350lf2 A694 F65 F70 Flange, Welding Neck Flange, Blind Slip on Threaded Socket Weld Lap Joint
Product Description
Company Info
Basic Info.
Product Description
ASTM A694 is the standard specification for carbon and alloy steel forgings for pipe flanges, fittings, valves, and parts for high-pressure transmission service which are manufactured for use with high-strength transmission-service pipe. There are 9 steel grades specified which are all within TianYuan's manufacture & supply capability: ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70. All grades shall be furnished suitable for field welding and be free of welding-repair. The high-strength A694 flanges, fittings or valves are commonly seen in oil & gas wellhead systems, offshore drilling platforms, as well as long-distance high-pressure oil & gas transmission pipelines.
1. ASTM A694 Chemical Composition Requirements
| Chemical Composition of ASTM A694, Heat Analysis, % | |
| Carbon [C] | ≤0.30 |
| Manganese [Mn] | ≤1.60 |
| Phosphorus [P] | ≤0.025 |
| Sulfur [S] | ≤0.025 |
| Silicon [Si] | 0.15-0.35 |
*2. No limits apply to above-mentioned elements of A694 forgings furnished in carbon or low alloy steel.
*3. ASTM A694 forgings furnished in alloy steel should be in conformance to ASTM A707 Grade L5.
*4. When required, the carbon equivalent CE shall be calculated as per C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15.
2. ASTM A694 Mechanical Properties
| ASTM A694 Grade | Yield Strength min. | Tensile Strength min. | Elongation min. | ||
| MPa | ksi | MPa | ksi | % | |
| F42 | 290 | 42 | 415 | 65 | 20 |
| F46 | 315 | 46 | 415 | 60 | 20 |
| F48 | 330 | 48 | 425 | 62 | 20 |
| F50 | 345 | 50 | 440 | 64 | 20 |
| F52 | 360 | 52 | 455 | 66 | 20 |
| F56 | 385 | 56 | 470 | 68 | 20 |
| F60 | 415 | 60 | 515 | 75 | 20 |
| F65 | 450 | 65 | 530 | 77 | 20 |
| F70 | 485 | 70 | 565 | 82 | 18 |
3. Manufacture, Workability & Heat Treatment
The ASTM A694 forgings can be furnished in carbon steel, low alloy steel or alloy steel. The steel shall be made by either open hearth, electric furnace, or basic oxygen process and it shall be fully deoxidized. Its forged flanges and forged fittings can be readily manufactured from ingots, blooms, billets, slabs, or bars. However, A694 flanges shall not be machined directly from plate nor from solid bar stock since sufficient hot working(forging) is necessary to develop a wrought structure throughout the part.
All grades of ASTM A694 shall be heat treated. Heat treatment of carbon steel and high-strength low-alloy steel may consist of normalizing, normalizing-and-tempering, or quenching-and tempering. Heat treatment of alloy steel may consist of normalizing and precipitation heat treatment or quenching and precipitation heat treatment. The tempering temperature shall be at least 1000 °F [540 °C]. The precipitation heat treatment of the alloy steel shall be in the range from 1000 to 1225 °F [540 to 665 °C].
DN15-DN3000
Maximum weight 6tons
25,000tons production annual year
ANSI B16.5,ANSI B16.47 Series A&B,ANSI B16.48,ANSI B16.36
API 605,API 16D,API 17D
BS4504,BS3293
DIN
AS
EN1092-1
GOST
EEMUA145
EN10204-3.2 byTUV,BV,Lloyds,GL,DNV,SGS,ABS,RINA,Moody or other third parties
