Oshan Z6 PARTS Chongqing Zhongheng Chuangxin Auto Parts Co., Ltd , https://www.zhcx-autoparts.com
**Product Name:** Forged SAE1045, ST52, SS316, and SAE4145 Steel Blind Flanges
**Model No.:** SAE4145 Casted Alloy Steel Blind Flange
**Manufacturing Method:** Forging
**Size:** Outer Diameter from 300mm to 2500mm
**Machining:** Rough Machining
**Technology:** Forged
**Certificates:** ISO 9001, ABS, GL
**Trademark:** GD
**Transport Packaging:** Wooden Case, Pallet, or as per Customer's Requirements
**Specification:** Customized Based on Drawings
**Origin:** Jiangsu, China
**HS Code:** 7307.20
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**Product Description:**
Our **forged blind flanges** are manufactured using high-quality materials such as **SAE1045**, **ST52**, **SS316**, and **SAE4145** steel. These flanges are ideal for industrial applications where strength and durability are essential. Available in a wide range of sizes, from **OD 600mm to 6300mm**, they meet international standards like **ASME, EN, DIN, BS**, and more.
**Certifications:**
- 9 Ship Classification Societies: DNV, BV, ABS, GL, RINA, LR, KR, NK, CCS
- ISO 9001:2008
- CE
- Certificate 3.1
**Materials:**
- **Carbon Steels:** A105, A266 Cl1–Cl4, A372 Gr.A/B, A350 LF2/LF3, A516 Gr.60/70, A738C/S355J2/1.0577
- **Alloy Steels:** 42CrMo4 (Q+T), AISI 4140, DIN EN 1.7225; 25CrMo4/AISI 4130/DIN EN 1.7213; 34CrNiMo6/AISI 4340/DIN EN 1.6582; AISI 8660 Triple Alloy Steel
- **Stainless Steels:** A182 F304/304L, F310, F316/316L, F316Ti, F317/317L, F321, F347, F44 (254SMO), 904L (N08904)
**Dimensions:**
- Custom-made according to drawings
- Max OD: 6900mm (from 400mm to 6900mm, 20''–271'')
- Max Unit Weight: 30 Tons
**Production Process:**
Raw Material Inspection → Stock Cutting → Heat Treatment → Forging → Heat Treatment (Normalizing + Tempering) → Inspection → Rough Machining → UT Testing → Second Heat Treatment → Finishing Machining → Final Inspection → Packaging
**Shipping:**
From Shanghai Port
**Equipment Used:**
- 3600t and 2000t Metal Forging Hydraulic Presses
- 7m and 3.5m Rolling Machines
- Various Vertical Lathes
- 5m CNC Drilling Machine
- Multiple Testing Machines
**Production Cycle:**
Approximately 24 days, depending on the quantity
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**Image:**
Whether you need **carbon steel**, **alloy steel**, or **stainless steel** blind flanges, our forged products are designed to meet the highest quality and performance standards. Contact us today for custom solutions tailored to your project needs.
Oshan Z6
September 19, 2025