説明
製品詳細
A socket weld neck flange combines the socket weld connection principle with an extended hub or neck profile to improve stress distribution and pipe alignment in compact, 高圧サービス. It is typically used on small-diameter pipelines handling steam, 油, ガス, chemicals and other critical media where leak resistance, strength and reliable installation are important. Common face types include RF and RTJ according to pressure class and service conditions.
SASA FLANGE supplies socket weld neck flanges in standard and customized dimensions to ASME, EN, DIN, JIS および GB の要件. 各オーダーは化学分析によってサポート可能, 機械的試験, dimensional inspection and PMI testing. EN 10204 3.1 認証, positive material identification, marking verification and full heat number traceability are available to meet project, EPC and end-user quality requirements.
- ✓製品名: Socket Weld Neck Flange
- ✓材質グレード: 炭素鋼, ステンレス鋼, alloy steel and duplex stainless steel
- ✓製品タイプ: Forged socket weld flange with reinforced neck/hub design
- ✓主な特長: High strength connection for small-bore, high-pressure and high-temperature piping
- ✓アプリケーション: 石油とガス, 石油化学, 発電, 海洋, shipbuilding and water treatment
製品パラメータ
| 製品名 | Socket Weld Neck Flange |
| 材質グレード | ASTM A105, A350 LF2, A182 F304/F304L, F316/F316L, F321, F11, F22, F51, F53, F55 |
| 材質の種類 | 炭素鋼, ステンレス鋼, 合金鋼, 二相ステンレス鋼 |
| 製品形態 | Forged and machined flange |
| サイズ範囲 | DN15 – DN100 (1/2 インチ – 4 インチ) |
| 圧力クラス | クラス 150 – 2500 / PN10 – PN100 |
| シール面 | RF, FF, RTJ |
| 表面処理 | 防錆油, Black paint, Hot-dip galvanized, 酸洗い, Passivation |
| 標準 | ASME B16.5, EN 1092-1, DIN, JIS B2220, ギガバイト/トン 9119 または顧客の仕様 |
| 検査 | 化学分析, 機械的試験, PMIテスト, 寸法検査, 目視検査, Hydrostatic when specified |
| 証明書 | EN 10204 3.1 材料証明書が利用可能 |
| 加工サービス | 切断, CNC加工, カスタムドリリング, カスタムサイズ加工 |
化学組成
The following chemical composition is for reference using a common carbon steel forging grade for socket weld neck flanges. Final chemical composition depends on the selected material grade, 適用規格, heat treatment condition and approved mill test certificate. SASA FLANGE supplies materials according to project requirements with full traceability and inspection records.
| 要素 | C | そして | ん | P | S | Cr | で | モー | 他の |
|---|---|---|---|---|---|---|---|---|---|
| ASTM A105 コンテンツ % | 0.35 最大 | 0.10 – 0.35 | 0.60 – 1.05 | 0.035 最大 | 0.040 最大 | 0.30 最大 | 0.40 最大 | 0.12 最大 | 銅 0.40 最大, V 0.08 最大 |
機械的性質
Mechanical properties shown below are representative values for commonly supplied forging grades used in socket weld neck flanges. Actual results may vary by material grade, 熱処理条件, product section and governing standard. Certified test values are confirmed by mill test certificate and supplementary inspection when required by the project specification.
| 学年 | 抗張力 | 降伏強さ | 伸長 | 硬度 | 密度 |
|---|---|---|---|---|---|
| ASTM A105 | 485 MPa以上 | 250 MPa以上 | 22% 分 | 187 HB最大 | 7.85 g/cm3 |
| ASTM A182 F316/F316L | 515 MPa以上 | 205 MPa以上 | 30% 分 | 217 HB最大 | 7.98 g/cm3 |
共通サイズ表
| サイズ範囲 | 圧力クラス | シール面 | 材料 | 可用性 |
|---|---|---|---|---|
| DN15 – DN25 | クラス 150 – 600 | RF | A105, F304, F316 | ストック / 生産 |
| DN32 – DN50 | クラス 150 – 1500 | RF / RTJ | A105, F11, F22, F304, F316 | ストック / 生産 |
| DN65 – DN80 | クラス 300 – 2500 | RF / RTJ | A105, F11, F22, F316, F51 | 生産 |
| DN100 | クラス 150 – 900 | RF | A105, F304, F316, F51 | オーダーメイド |
各種仕様比較
| タイプ | 説明 | 一般的な使用方法 |
|---|---|---|
| Socket Weld Neck Flange | Socket weld flange with extended neck or hub to improve alignment and stress transition | High-pressure small-bore process lines and critical utility piping |
| Standard Socket Weld Flange | Conventional socket weld flange with socket bore and compact hub | General high-pressure small-diameter piping systems |
| 溶接ネックフランジ | Butt weld flange with long tapered hub for full-penetration welding | Larger diameter or severe cyclic service lines |
| ねじ付きフランジ | Internally threaded flange without welding requirement | Low-pressure non-cyclic service or where welding is restricted |
同等の規格と国際名
Socket weld neck flange dimensions and grade naming can vary by regional standard and project specification. 実際に, buyers often match pressure rating, 対面タイプ, bore details and material requirements rather than relying on one-to-one equivalency only. SASA FLANGE supports international standards and can recommend suitable equivalent grades for export projects.
| 標準 / 地域 | 標準コード | 代表的なグレード / 同等 |
|---|---|---|
| アメリカ合衆国 | ASME B16.5 | ASTM A105, A182 F304/F316, F11, F22 |
| ヨーロッパ | EN 1092-1 | P245GH, 1.4301, 1.4404, 13CrMo4-5 |
| ドイツ | DIN 2565 / DIN 2566 | C22.8, 1.4301, 1.4404, 13CrMo4-5 |
| 日本 | JIS B2220 | SFVC2A, SUS304, SUS316 |
| 中国 | ギガバイト/トン 9119 | 20#, 16ん, 304, 316, 12Cr1MoV |
生産工程の流れ
Manufacturing quality of socket weld neck flanges depends on strict control of raw material, forging soundness, bore/socket dimensions and sealing face machining. SASA FLANGE applies traceable production and inspection procedures to ensure dimensional accuracy, pressure integrity and compliance with project specifications.
- 1. 原材料の選択
- 2. 鍛造 / 切断
- 3. 熱処理
- 4. 荒加工
- 5. 仕上げ加工
- 6. 掘削
- 7. 表面処理
- 8. 検査
- 9. マーキング
- 10. パッキング
- 11. 配達
| プロセスステップ | 説明 | 品質管理ポイント |
|---|---|---|
| 原材料 | 認定された鍛造ビレットまたはプレートを選択してください | 材料証明書とトレーサビリティ |
| 鍛造 | 熱間鍛造により必要な形状を実現 | 鍛造温度と減速比 |
| 熱処理 | 正規化, tempering or annealing | 温度と保持時間の制御 |
| 機械加工 | シール面, ボルト穴, 寸法 | 寸法精度と表面仕上げ |
| 検査 | 出荷前の最終検査 | 寸法, 表面, PMI, 静水圧 |
製品検査
1. 化学成分検査
Chemical composition inspection is performed to verify that the flange material matches the ordered grade such as A105, F316 or F22. Spectrometer or laboratory analysis checks key alloying and residual elements against applicable standards. This helps ensure weldability, corrosion resistance and pressure service suitability before machining and final release.
2. 機械的特性試験
Mechanical testing confirms tensile strength, 降伏強さ, elongation and hardness according to the selected material standard. Test specimens are taken from representative heats or forgings after heat treatment. These results verify that the socket weld neck flange has the required strength and toughness for pressure piping, thermal cycling and demanding industrial service.
3. 寸法検査
外径をカバーする寸法検査, フランジの厚さ, ボルトサークル, 穴径, ハブの寸法, socket bore, socket depth and sealing face finish. Accurate inspection is essential to ensure fit-up with mating flanges and proper insertion of the pipe into the socket. SASA FLANGE checks dimensions in accordance with ASME, EN, DIN, JIS or customer drawings.
4. PMI試験と静水圧試験
PMI testing is available to confirm alloy grade for stainless steel, alloy steel and duplex materials using portable analyzers. Hydrostatic testing can be arranged when required by project specification or special design. Final documents may include EN 10204 3.1 証明書, 検査報告書, 熱数トレーサビリティ, dimensional report and marking verification for shipment approval.
製品の梱包
- ✓木製ケース包装: 高圧・大口径製品に最適
- ✓シュリンクラップによるパレット梱包: バッチ出荷や標準サイズに適しています
- ✓防錆油塗装 + 耐水紙: 海上貨物の保護に使用されます
- ✓個別のビニール袋 + カートン: 小型継手やねじ製品に使用されます。
- ✓クリアマーキング: 学年, サイズ, 圧力クラス, ヒート番号とPO番号
アプリケーション
Socket weld neck flanges are mainly used in small-diameter piping where pressure resistance, compact installation and dependable welded connection are priorities. They are selected for utility and process lines carrying steam, hydrocarbons, chemicals and treated water, especially in systems requiring secure fit-up and stable performance under vibration or temperature fluctuation.
| 業界 | 代表的な用途 | この製品が使用される理由 |
|---|---|---|
| 石油とガス | Instrument lines, ユーティリティライン, high-pressure sampling systems, gas distribution skids | Provides strong small-bore connection with good alignment and pressure capability |
| 化学処理 | Corrosive fluid transfer lines, 溶媒系, reactor auxiliary piping | Available in stainless and alloy grades for corrosion resistance and leak-tight service |
| 発電 | Steam tracing, boiler auxiliary piping, condensate and high-temperature service lines | Suitable for high-pressure and elevated-temperature operation in compact pipe sizes |
| 水処理 | Chemical dosing lines, backwash lines, pressure pumps and skid piping | Offers reliable connection and easy integration into compact treatment equipment |
| 海洋および海洋 | Hydraulic systems, fuel lines, cooling systems and module piping | Compact design, strong welded joint and availability in corrosion-resistant materials |
選ぶ理由 SASA FLANGE?
- ✓Professional manufacturer of Socket Weld Flange for global industrial projects
- ✓カスタマイズされたサイズ, 図面による圧力クラスと材料グレード
- ✓完全な標準サポート: ASME, EN, DIN, JIS, GB, GOSTと顧客の仕様
- ✓熱数制御による材料トレーサビリティと EN 10204 3.1 材料証明書
- ✓化学分析, 機械的試験, PMIテスト, 静圧検査および寸法検査
- ✓標準品の在庫状況, リードタイム 3-7 日; カスタム生産 15-30 日
- ✓海上向け輸出グレードの梱包, 航空輸送と陸上輸送
- ✓15+ 長年の供給経験 50+ 世界中の国
よくある質問
Q: What is a socket weld neck flange?
あ: A socket weld neck flange is a forged flange for small-diameter piping in which the pipe is inserted into a socket and then fillet welded around the hub area. The neck or extended hub helps improve alignment and stress distribution. It is commonly used in high-pressure, moderate-temperature systems where compact installation and reliable connection are required.
Q: What materials are available for socket weld neck flanges?
あ: SASA FLANGE supplies socket weld neck flanges in carbon steel, low-temperature carbon steel, ステンレス鋼, alloy steel and duplex stainless steel. 一般的なグレードとしては、 ASTM A105, A350 LF2, A182 F304/F304L, F316/F316L, F11, F22 and F51. Material selection depends on pressure, 温度, corrosion allowance and applicable project specification.
Q: サポートされている圧力クラス?
あ: Socket weld neck flanges are generally used in small-bore piping and are commonly supplied in ASME Class 150, 300, 600, 900, 1500 そして 2500, depending on size and material. Under EN and other systems, comparable PN ratings can also be supplied. SASA FLANGE can recommend the correct pressure class based on operating conditions and standard requirements.
Q: できる SASA FLANGE カスタムサイズを供給する?
あ: はい. SASA FLANGE can manufacture custom socket weld neck flanges according to drawings or project standards, including special bore and socket dimensions, 非標準の穴あけ, special facing finishes, RTJ grooves and NACE or low-temperature material requirements. We also support custom marking, packaging and third-party inspection for EPC, distributor and end-user procurement needs.
Q: どのような証明書が提供されるか?
あ: Standard supply can include EN 10204 3.1 material certificate together with mill test certificate, 寸法検査記録と熱量トレーサビリティ. For alloy or stainless grades, PMI testing reports are available. Mechanical test reports and hydrostatic or supplementary inspection documents can also be provided when specified in the purchase order or project quality plan.
お問い合わせ
If you are looking for socket weld neck flange or related custom flange products, 連絡してください SASA FLANGE 必要なサイズで, 圧力クラス, 材質グレード, 標準, 表面処理, 数量と検査要件. 私たちのチームは専門的な技術ソリューションと競争力のある見積もりを提供します。 24 時間.
- 📧メール: sales@sasaflange.com
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