دليل الأسعار الرخيصة للطلب بالجملة للفولاذ الطري ذو الوجه المرتفع

Raised Face Flange Stockist and Mild Steel Bulk Order Guide

Finding reliable raised face flange stockists with competitive pricing for bulk orders is essential for project procurement. This guide covers stock availability, bulk pricing, and cost-saving strategies.

Raised Face Flange Overview

Raised face (RF) is the most common flange facing type in industrial applications:

RF Face Dimensions

• Class 150 and 300: 1.6mm (1/16 inch) raise
• Class 400 and higher: 6.4mm (1/4 inch) raise
• طلاء مسنن: 3.2 - 6.3 ميكرون Ra
• Concentric or spiral serrations

Gasket Compatibility

• Non-asbestos sheet gaskets
• Spiral wound gaskets
• Graphite gaskets
• PTFE gaskets
• Rubber gaskets for low pressure

طلب شفة الفولاذ الطري الرخيص بالجملة

Mild steel flanges offer the most cost-effective solution for non-critical applications:

Material Grades

قياسي	Grade	Region
Chinese	Q235	China
Japanese	SS400	Japan/Asia
European	S235JR	Europe
American	A36	USA

Cost Comparison by Material

• Mild steel (Q235/SS400): Base price 100 percent
• Carbon steel (A105): Plus 15-20 percent
• Stainless 304: Plus 60-80 percent
• Stainless 316: Plus 100-120 percent

Bulk Order Pricing Tiers

الكمية	خصم	المزايا
10-50 قطعة	5-10 percent	Standard packaging
50-100 قطعة	10-15 percent	Priority production
100-500 قطعة	15-25 percent	Free inspection
500 plus pieces	25-35 percent	Dedicated support

مواصفات مورد شفة DN100 شفة DN100

DN100 (NPS 4) is one of the most commonly ordered flange sizes:

ASME B16.5 الفئة 150

• Outside Diameter: 229mm
• Bolt Circle: 191mm
• Bolt Holes: 8 times 19mm
• Flange Thickness: 20.6mm
• الوزن: 3.8 كجم تقريباً

EN 1092-1 PN16

• القطر الخارجي: 220 مم
• دائرة البرغي: 180 مم
• Bolt Holes: 8 times 18mm
• سُمك الحافة: 20 مم
• الوزن: 3.5 كجم تقريباً

شفة مع شهادة CE للتصدير

European exports require comprehensive certification:

متطلبات التصديق

• CE Marking mandatory
• PED 2014/68/EU compliance
• Notified Body involvement
• Technical documentation
• Declaration of Conformity

Testing Requirements

• Material verification per heat
• فحص الأبعاد
• Pressure testing
• Non-destructive testing

Stock Availability by Type

Commonly Stocked Items

• Carbon steel A105: All sizes DN15-DN600
• Stainless 304/316: DN15-DN300
• Mild steel Q235: DN15-DN400
• Blind flanges: All common sizes

Made to Order

• Alloy steel flanges
• Duplex and super duplex
• Large diameter DN700 plus
• فئات الضغط الخاصة
• Custom drilling patterns

Carbon Steel Flange Suppliers Selection

Key Selection Criteria

1. Manufacturing capabilities and capacity
2. Quality certifications (ISO, CE, PED)
3. Material traceability (MTR available)
4. Production lead times
5. Export experience
6. After-sales support

Red Flags to Avoid

• No material test reports
• Unrealistically low prices
• No quality certifications
• Poor communication
• No references or reviews

Stainless Steel Flange Manufacturers

Global manufacturing regions for stainless flanges:

By Country

• China: Largest producer, competitive pricing
• India: Growing capacity, good quality
• Italy: Premium quality, higher cost
• USA: Domestic supply, quick delivery
• Japan: High precision, excellent quality

Shipping and Logistics

• Sea freight: 20-35 days to major ports
• Air freight: 5-7 days for urgent orders
• Rail freight: 15-20 days to Europe
• Container optimization available

Payment Terms

• T/T: 30 percent deposit, 70 percent before shipment
• L/C at sight for large orders
• Trade Assurance available
• Flexible terms for repeat customers

Songhai Flange is a professional raised face flange stockist with CE certification for export. We offer competitive pricing for mild steel bulk orders and maintain stock of common sizes for quick delivery.

واتساب: +86-18658777855
البريد الإلكتروني: 1007788887@qq.com

واتساب: +86-18658777855
البريد الإلكتروني: 1007788887@qq.com