| Flanges Types | Slip On, Weld Neck, Threaded, Long Weld Neck, Companion, Blind, Lap Joint |
|---|---|
| Class | 2500 Lbs Asa 150, 1500 Lbs, 900 Lbs, 600 Lbs, 300 Lbs, 40, 25, 64, 100, 160, Asa 300 |
| Size | 1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000 |
| Type | Raised Face (rf), Large Tongue & Groove, Ring Type Joint (rtj) |
Spectacle Flanges
Metalica Forging Inc. is a reliable source of engineering value and long-term sustainability as a trusted Spectacle Flanges manufacturer, producing excellent components made for challenging industrial environments. We make sure our spectacle blinds, spacers, and line blanks are the products of high-quality stainless steel, carbon steel, and alloy steel so that they will be strong, corrosion resistant, and dependable in oil & gas, chemical processing, power generation, and refinery sectors. Each flange, under a strict quality control regime and with precise dimensions, is made to be the support of the most reliable flow control and system safety in pipelines that carry out the mission.
In addition to supporting the project requirements, we offer detailed material traceability, custom specifications, and reliable supply capabilities. Many engineers working on the isolation and maintenance lines decide to use Pad Flange configurations to get more operational flexibility and choose them based on the system design compatibility.
Mechanical Properties of Spectacle Flanges
Material Grade | Standard | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness |
|---|---|---|---|---|---|
| ASTM A105 | ASTM A105 | 485 – 655 | ≥ 250 | ≥ 22 | ≤ 187 HB |
| ASTM A350 LF2 | ASTM A350 | 485 – 655 | ≥ 250 | ≥ 22 | ≤ 187 HB |
| ASTM A216 WCB | ASTM A216 | 485 – 655 | ≥ 250 | ≥ 22 | ≤ 187 HB |
| ASTM A516 Gr 70 | ASTM A516 | 485 – 620 | ≥ 260 | ≥ 21 | ≤ 197 HB |
| ASTM A182 F11 | ASTM A182 | 415 – 585 | ≥ 205 | ≥ 20 | ≤ 235 HB |
| ASTM A182 F22 | ASTM A182 | 515 – 690 | ≥ 310 | ≥ 20 | ≤ 235 HB |
| ASTM A182 F304 / 304L | ASTM A182 | ≥ 515 | ≥ 205 | ≥ 40 | ≤ 201 HB |
| ASTM A182 F316 / 316L | ASTM A182 | ≥ 515 | ≥ 205 | ≥ 40 | ≤ 217 HB |
| ASTM A182 F321 / F347 | ASTM A182 | ≥ 515 | ≥ 205 | ≥ 40 | ≤ 217 HB |
| ASTM A182 F51 (2205) | ASTM A182 | ≥ 620 | ≥ 450 | ≥ 25 | ≤ 290 HB |
| ASTM A182 F53 (2507) | ASTM A182 | ≥ 800 | ≥ 550 | ≥ 15 | ≤ 300 HB |
| Inconel 625 | ASTM B564 | ≥ 827 | ≥ 414 | ≥ 30 | ≤ 220 HB |
| Monel 400 | ASTM B564 | ≥ 480 | ≥ 170 | ≥ 35 | ≤ 217 HB |
| Hastelloy C276 | ASTM B564 | ≥ 790 | ≥ 355 | ≥ 40 | ≤ 240 HB |
In such situations, our established B2B marketplace makes it possible for buyers to coordinate smoothly, have structured procurement, and get timely delivery, thus they can efficiently handle large-scale orders and at the same time, get high-performance spectacle flanges supported by professional service and reasonable prices.
Type of Sub-products

Spectacle Blind Flange Spectacle Blind Flange
Built for secure pipeline isolation, Spectacle Blind Flange solutions offer dependable shutoff, exceptional corrosion resistance, and long-term stability in demanding industrial systems. Engineered to maintain safe operations, they support efficient maintenance, pressure control, and reliable performance across critical process lines.

Alloy Steel Spectacle Blind Flange Alloy Steel Spectacle Blind Flange
Developed for high-pressure and high-temperature service, Alloy Steel Spectacle Blind Flange delivers robust isolation, enhanced strength, and dependable corrosion resistance in demanding industrial systems. Its durable alloy construction ensures safe shutdowns, efficient maintenance, and long-lasting performance across refineries, power plants, and process pipelines.
