Blind Flanges are manufactured without a bore and used to blank off the ends of piping, Valves and pressure vessel openings.
From the standpoint of internal pressure and bolt loading, blind flanges, particularly in the larger sizes, are the most highly stressed flange types.
However, most of these stresses are bending types near the center, and since there is no standard inside diameter, these flanges are suitable for higher pressure temperature applications.
Blind Flange,Blank Flange,Blind Plate,Pipe Blind Flange Fuyuan Marine Accessories Co., Ltd , https://www.fymarineparts.com
March 21 Beijing Steel Market Price Quotes
**Steel and Metal Prices Summary (April 5, 2025)**
Here is the latest update on steel and metal prices across various specifications. The market has remained relatively stable with minimal fluctuations in most products.
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### **Rebar & High-Tension Lines**
- **High-line φ6.5–12mm Q235**
- *Shougang*: ¥4960–5010 (unchanged)
- *Tangshan Steel*: ¥4960–5010 (unchanged)
- *Xuanhua*: ¥4960–5010 (unchanged)
- *Handan Steel*: ¥4960–5010 (unchanged)
- **Constant General Line φ6.5–12mm Q235**
- *Shougang*: ¥4960–4970 (unchanged)
- *Tangshan Steel*: ¥4960–4970 (unchanged)
- *Xuanhua*: ¥4960–4970 (unchanged)
- *Handan Steel*: ¥4960–4970 (unchanged)
- *Chenggang*: ¥4960–4970 (unchanged)
- **Rebar φ12–14mm HRB335**
- *Shougang*: ¥5070–5120 (unchanged)
- *Tangshan Steel*: ¥5070–5120 (unchanged)
- *Xuan Gang*: ¥5070–5120 (unchanged)
- *Bearing Steel*: ¥5070–5120 (unchanged)
- **Rebar φ16–25mm HRB335**
- *Shougang*: ¥4950–4960 (unchanged)
- *Tangshan Steel*: ¥4950–4960 (unchanged)
- *Xuan Gang*: ¥4950–4960 (unchanged)
- *Bearing Steel*: ¥4950–4960 (unchanged)
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### **Threaded Steel & Three-Stage Thread**
- **Three-Stage Thread φ12–14mm HRB400**
- *Shougang/Chengde Steel*: ¥5160–5170 (unchanged)
- **Three-Stage Thread φ16mm HRB400**
- *Shougang/Shangang*: ¥5040–5050 (up 20)
- *Previous*: ¥5020–5030
- **Three-Stage Thread φ20mm HRB400**
- *Shougang/Shangang*: ¥5040–5050 (up 20)
- **Three-Stage Thread φ25mm HRB400**
- *Shougang/Shougang*: ¥5040–5050 (up 20)
- **Three-Stage Thread φ28mm HRB400**
- *Shougang/Shougang*: ¥5070–5080 (unchanged)
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### **Cold Rolled Sheets**
- **Cold Rolled Sheet 0.5*1000*2000 Q195**
- *Ansteel*: ¥6750–6800 (unchanged)
- **Cold Rolled Sheet 0.7*1000*2000 Q195**
- *Benxi Steel/Angang*: ¥6700–6750 (unchanged)
- **Cold Rolled Sheet 1.0*1000*2000 Q195**
- *Benxi Iron & Steel/Anshan Iron & Steel*: ¥6600–6650 (unchanged)
- **Cold Rolled Sheet 1.5*1000*2000 Q195**
- *Benxi Iron & Steel*: ¥6600–6650 (unchanged)
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### **Hot Rolled Plates**
- **Hot Rolled Plate 2.0*1250*C Q235**
- *Taigang*: ¥5550–5600 (unchanged)
- **Hot Rolled Plate 4.75*1250*C Q235**
- *Tangshan Iron & Steel/Baogang*: ¥5300–5350 (up 50)
- **Hot Rolled Plate 5.5*1500*C Q235**
- *Tangshan Steel/Clad Steel*: ¥5300–5350 (up 50)
- **Hot Rolled Plate 11.5*1500*C Q235**
- *Tangshan Steel/Baotou Steel*: ¥5300–5350 (up 50)
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### **Boiler Plates & Container Plates**
- **Boiler Plate 6mm 20g**
- *New Steel*: ¥6550 (unchanged)
- **Boiler Plate 8mm 20g**
- *Ansteel*: ¥6450 (unchanged)
- **Container Plate 6mm 16MnR**
- *Jinan Steel*: ¥7680 (unchanged)
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### **Galvanized Sheets & Pipes**
- **Galvanized Sheet 1.0*1000*C JY150 WISCO**: ¥6400 (unchanged)
- **Galvanized Sheet 0.5*1000*C SGCC Hengtong**: ¥6650 (down 80)
- **Welded Pipe 1" 3mm Lida/Huaqi/Youfa**: ¥5220–5230 (unchanged)
- **Seamless Pipe 108*4.5 20# Angang**: ¥6600 (unchanged)
- **Galvanized Pipe 8 Inch 5mm Tianjin Lida**: ¥6600–6610 (unchanged)
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### **Angle Beams & I-Beams**
- **Angle 63*6 Q235 Ansteel**: ¥5200 (unchanged)
- **I-beam 25# Laiwu Steel**: ¥5350 (unchanged)
- **H-beam 400*400*13*21 Q235 Ma Steel**: ¥5950 (unchanged)
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### **Summary**
The steel market remains steady overall, with only a few products showing slight price changes. Rebars, cold rolled sheets, and hot rolled plates are mostly unchanged, while some high-tension and three-stage threaded steel have seen small increases. Galvanized products show mixed performance, with some showing minor declines. Investors and buyers should keep an eye on supply chain dynamics and demand trends for future movements.