1-48inch 150lbs RF ASTM A105 Carbon Steel Slip on Flange Raced Face

• Customization: Available
• Standard: ANSI, DIN, GB, JIS, GOST, BSW
• Type: Welding Flange
• Model NO.: ASTM A105 BS EN545 ASME B16.5
• Material: Stainless Steel
• Structure: Round
• Connection: Flanged
• Sealing Surface: RF
• Manufacturing Way: Forging
• Products: Butt Welded, Flat Blind Flanges, Slip on Flange
• Standard1: ASTM A182, GOST 12820-80, En1092-1, DIN 2573, 2576
• Standard2: ASTM/ASME B16.5 B16.36 B16.48 B16.47 Series a
• Steel Grade1: AISI 304, 304L, 316, 316L, Uns S31803 Uns S32750
• Steel Grade2: Uns S30403 / S30400 Uns S31603 / S31600
• Section Shape: Round
• Ends: Plain Ends
• Delivery: 7-35 Days
• Packgae: Packed by Bundles, Plastic Bags, Wooden Case,etc
• Application1: Oil/Gas Transport,Power Station,Chemical Industry
• Application2: Pipeline Transport, Boiler Pipe, Hydraulic/Automob
• Application3: Dewatering Transport,Marine Construction
• Application4: Pipeline/Pump/Valve Connection
• Application5: Seawater Desalination, Sour Gas Pipelines
• Application6: Petrochemical Reactors, Nuclear Plants
• Transport Package: Seaworthy Package
• Specification: 3/4"-60"
• Trademark: EZ Steel
• Origin: China
• HS Code: 73043110
• Production Capacity: 500000/Year

Product Description

1-48inch 150lbs RF ASTM A105 Carbon Steel Slip On Flange Raced Face

 

Product Description

Type	WeldNeck Flange, Lap Joint Flange, Threaded flange, Socket Welding Flange,    Blind Flange,  Slip on Flange
Material	Stainless steel, Alloy steel. Duplex/Super Duplex, Aluminum
Size	3/4"-60"
Pressure	150#,300#,600#.900#,1500#,2500#
Technics	Forged,
Connection	welding
Sealing surface	FF RF M F M TG  RJ
Surface treatment	Anti-rust Oil,
Producing process	Billet-cutting-forging-heating-lathe-drilling-inspection-marking-packing-export-din flange
Application Fields	Chemical Industry /Petroleum Industry /Power Industry/Metallurgical Industry Building Industry /Ship-building Industry
Supply Capacity	8000tons  per  year
Min Order Quantity	1 ton
Inspection	factory in-house self-check or Third Party inspection
PACKING	plywood cases, pallets, nylon bags or according to the customers' requirements, plastic cap
Delivery	It is generally within 25 days after receiving your payment
TRADE TERM	FOB, CNF&CFR, CIF
PAYMENT	TT or L/C
CERTIFICATES	ISO-9001/2000,PED,ABS.TUV.DNV

 

Key Specifications

Parameter	Details
Standard	ASME B16.5
Material	ASTM A105 (Carbon Steel)
Type	Slip-On (SO)
Size Range	NPS 1" to 48" (DN 25 to DN 1200)
Pressure Class	Class 150 (PN 20)
Face Type	Raised Face (RF) - 1/16" height for NPS 1-24", 1/4" for NPS ≥26"
Temperature Range	-29°C to +425°C (-20°F to +800°F)
Dimensions	Compliant with ASME B16.5 Table 8
Bolting Holes	Drilled per ASME B16.5 (Class 150 bolt circle)
Coating/Finish	Black oxide / Rust-resistant oil (Optional: Epoxy or Hot-Dip Galvanized)

 

Material Properties (ASTM A105)

• High Strength: Tensile strength ≥485 MPa (70 ksi)

• Machinability: Excellent weldability and forging performance

• Chemical Composition:

  • C: ≤0.35% | Mn: 0.60-1.05% | P: ≤0.035% | S: ≤0.040%

 

Features & Benefits

 Easy Installation: Slips over pipe for faster welding alignment vs. weld neck flanges
 Cost-Effective: Lower material/labor costs than neck flanges for low-pressure systems
 Leak Prevention: Raised face ensures tight gasket compression (RF surface finish: 125-250 µin)
 Interchangeability: Compatible with ASTM A350 LF2/ASTM A182 F304 flanges

 

Applications

• Water Treatment: Pump connections, valve fittings

• Oil & Gas: Low-pressure pipelines, tank farms

• HVAC: Chilled water systems

• General Industry: Compressed air, fire protection lines

 

Quality Assurance

• Testing: Hydrostatic (optional), Dimensional inspection per ASME B16.5

• Certifications: Mill Test Certificate (EN 10204 3.1), ISO 9001, API 6A (on request)

• Marking: Laser-etched with material grade, size, heat no., and manufacturer logo

 

Packaging & Delivery

• Standard: Wooden crates with anti-rust VCI paper (or steel strapping for large flanges)

• Lead Time:

  • NPS 1-24": 15-30 days (stock available)

  • NPS 26-48": 30-60 days (made-to-order)

• Shipping: FOB/CIF to global ports

 

 

 

FAQ

Q:  How many days can you deliver after confirmed the order?
A:  For stock:  within 5-7 days;
      For customized product:  around 30 days;
      For special sizes:  subject to negotiation.

Q: How does your company do quality control?
A: ISO 9001:2015 certified;
     Product certificate as per EN10204 3.1 or 3.2 as per customer's request.
    
  
Q: Can I have a factory-visit?
A:  Surely. All customers are welcome to visit us in China.

Q: Can I have a trial order?
A: Of course, it is an honor for us to have the opportunity to show our quality and service. 
 

Company Profile

	Business Type:	Manufacturer/Factory
	Main Products:	Carbon Steel Pipe , Stainless Steel Pipe , Copper Nickel Tube , Heat Exchanger Tube , Boiler ...
	Registered Capital:	2000000 RMB
	Plant Area:	>2000 square meters
	Management System Certification:	ISO 9001, ISO 14001, OHSAS/ OHSMS 18001, ANSI/ESD
	Average Lead Time:	Peak Season Lead Time: 1-3 months Off Season Lead Time: within 15 workdays

SGS Serial NO. :

QIP-ASI199413Report Verification

EZ STEEL INDUSTRIAL Co., Ltd, together with LONG-RUN METALS Co., Ltd, is the export division and window company of EZ STEEL GROUP, which was founded in 1996 and has been committed to the development and manufacturing of industrial tubes in the past 20 years. It is one of the largest steel tube manufacturing enterprise groups in China. The group possess fixed assets over 200million and more than 800 employees with annual production capacity over 300 thousand tons.

The company has continuously introduced the world advanced manufacturing equipment and now is able to produce welded and seamless steel tube, copper tube and nickle alloy tube. We also have our own coating facilities and workshops for further processing. After years of development, EZ STEEL GROUP and the affiliated enterprises have obtained many kinds of domestic and international certifications including ISO 9001 Quality Management System Certification, ISO14000 Environment Management System Certification, CE, License for Manufacture of Pressure Piping in China, etc. The company has obtained good domestic achievements and is the nominated supplier of CNPC and CNOOC. The product are exported to Southeast Asia, the Middle East and Africa, Europe, Australia, North and Latin Americas via trade companies, and are widely used in pipeline works, foundation works, steel structure works, boiler and condenser fabrication, oil refinery plant, power plant, sugar-making plant, ship-building and offshore construction projects etc.

Holding the concept of First-class Brand, First-class Service, First-class Value, EZ STEEL GROUP is aiming to build up a win-win enterprise platform for both our customers and employees.
 

CONTACT US
Contact: Rosy Xu
EZ STEEL INDUSTRIAL CO., LTD
Add: No.199,  Xiangfu Road, Yuhua Industrial Zone, Changsha City , P.R China 

Pls. do not hesitate to contact me if you have any questions!

You are warm welcomed to visit our factory!!!

Thank you for visiting our products & Looking forward to hearing from you!