Flange BS 3293

TYPE: SO, WN. Material: A105, A350 LF2, A36, SS 400, A182 F11/F304/F316/F51/F53/F55 etc. Size: 26" ~ 48" Standard: BS 4504 Pressure: CLASS 150 ~ CLASS 600 Flange Facing: RF, FF, RTJ, M&F, T&G. Customization: OEM/ODM service. Samples: Sample service available.

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Product Description

Xi 'An QinSteel Trading Co., Ltd | Premium Flange BS 3293 Manufacturer & Global Supplier

When your high-pressure oil and gas projects demand Flange BS 3293 solutions that combine British Standard precision with industrial durability, Xi’an QinSteel delivers. Our GMP-certified manufacturing ensures every flange meets strict BS 3293 specifications for size (26"–48"), pressure ratings (Class 150–600), and leak-proof performance – ideal for pipelines where reliability can’t be compromised.

Material Specifications

STANDARD	TYPE	SIZE	PRESSURE
ASME B16.5	WN, SO, SW, BLD, THREADED, LP	1/2" ~ 24"	CLASS 150 ~ 2500
ASME B16.36	WN, SO, THREADED	1/2" ~ 24"	CLASS 300LB ~ 2500
ASME B16.47	WN BLD	26" ~ 60"	CLASS 75 ~ 900
ASME B16.48	SPECTACLE BLANKS, SPADES, RING SPACERS	1/2" ~ 24"	CLASS 150 ~ 2500
AWWA C207	STEEL RING, BLD, STEEL HUB	4" ~ 96"	86 ~ 275 PSI
API 6A	WN, BLD, THREADED, INTEGRAL, TEST	2-1/16" ~ 20-3/4"	13.8 MPa ~ 138.0 MPa
API 605	WN	26" ~ 60"	CLASS 150 ~ 900
SANS 1123	WN, PLATE, SCREWED, SO, LOOSE, BLANK, INTEGRAL	DN 10 ~ 3600	250 ~ 4000 kPa
AS 2129	BLD, PLATE, BOSS, WN	DN 15 ~ 1800	TABLE A ~ TABLE T
BS 3293	SO, WN	26" ~ 48"	CLASS 150 ~ 600
BS 4504	PLATE, LOOSE, BLANK, WN, SO, THREADED, WO PLATE, INTEGRAL	DN 10 ~ 4000	PN 6 ~ 40
EN 1092-1	PLATE, LOOSE, BLIND, WN, SO, THREADED, WO PLATE, INTEGRAL	DN 10 ~ 3600	PN 6 ~ 400
JIS B2220	SOP, SOH, SW, WN, LJ, TR, IT, BL	DN 10 ~ 1500	5 ~ 63 K
MSS SP-44	BLD, WN	12" ~ 60"	CLASS 150,19.6bar ~ CLASS 900, 153.1 bar

Built for Extreme Conditions

Material Grades:

Carbon Steel (A105, A36)
Stainless Steel (A182 F304/F316)
Duplex Steel (F51/F53)

Surface Options:

RF, FF, RTJ, M&F, or T&G facings
Anti-corrosion coatings

Why Choose BS 3293 Flanges?

✅ Compliance Guaranteed

Manufactured to BS 3293 standards for dimensional accuracy, pressure tolerance, and seamless integration with mating flanges.

✅ Large-Scale Readiness

Specialized in 26"–48" sizes to support major pipeline installations and offshore platforms.

✅ Material Versatility

Choose from carbon steel for cost efficiency, stainless for corrosion resistance, or duplex steel for high-stress environments.

✅ Pressure Flexibility

Withstands Class 150 to Class 600 systems, adapting to refinery, petrochemical, or shale gas applications.

✅ Zero-Leak Assurance

CNC-machined sealing surfaces ensure perfect alignment and long-term integrity.

Where Our Flanges Excel？

Oil & Gas Pipelines: Connect sections securely under fluctuating pressures.
Refineries: Handle corrosive substances and high temperatures.
Offshore Platforms: Resist saltwater corrosion with duplex steel options.
Chemical Plants: Compatible with ASTM materials for acidic/alkaline fluids.

Why Partner With Us?

🏭 GMP-Certified Production

Every Flange BS 3293 is precision-engineered in our ISO 9001 facility, with full traceability from raw material to final inspection.

⏱️ Urgent Order Stock

Need flanges ASAP? Our pre-certified inventory ships within 48 hours, minimizing project downtime.

🔧 Tailored OEM Solutions

Modify bore sizes, bolt patterns, or coatings to match your blueprints – backed by our R&D team’s 15+ years of expertise.

🌍 Global Compliance

PED, NACE, and ATEX certifications included, meeting EU, Middle Eastern, and North American regulations.

Quality Assurance

100% Dimensional Checks: Laser scanning for BS 3293 compliance.
Non-Destructive Testing (NDT): Ultrasonic and radiographic inspections.
Material Certificates: EN 10204 3.1 reports with heat number tracing.

Safe, Timely Delivery

📦 Export-Ready Packaging:

Shock-absorbent wooden crates
Anti-rust VCI coating
Custom labeling for easy identification

Quality Control

Factory Equipment

Shipping Packaging

FAQs

Q: Are your flanges certified for EU projects?

A: Yes! We provide PED 2014/68/EU compliance documentation.

Q: Can I request a sample before bulk ordering?

A: Absolutely. We offer sample services for quality verification.

Q: How do you prevent transit damage?

A: Our three-layer packaging (padding + moisture control + reinforced crates) ensures safe delivery.

Q: What's your lead time for 500+ units?

A: Stock items ship in 3 days; custom orders take 4–6 weeks with weekly production updates.

Q: Do you support non-standard sizes beyond 48"?

A: Yes! Share your specs, and our engineering team will develop a solution.

Contact Us

Email: info@sxqinsteel.com

Need a quote or technical support for Flange BS 3293? Reach out – our experts respond within 2 hours.