ASME B16.5 Titanium Weld Neck Flange Class 300

Спецификация	Material: Gr2 (TA2)
Применимый стандарт	Standard: ASME B16.5
Состояние материала	Class: 300\|Face: RF
Контроль и упаковка	Oct Stock: 30000 Pcs

Описание продукции: ASME B16.5 Class 300 Titanium Weld Neck Flange RF in Gr2/TA2. Forged + CNC machined for higher pressure corrosive service. Oct flange stock 30,000 pcs, 7-10 days for stock sizes. Quote in 4h: +86 1882

Запросить цену Связаться с отделом продаж

Обзор продукции

Проверено и поддерживается инженерной командой Shaanxi Qianyi Tuoda Technology Co., Ltd.

ASME B16.5 Titanium Weld Neck Flange Class 300 | Gr2 TA2 RF | 30000 Pcs Stock

ASME B16.5 Titanium Weld Neck Flange — Class 300 (RF, Gr2 / TA2)

Phone / WeChat: +86 15909236031 | Baoji Titanium Flange Manufacturer · Forged WN Flange · Mass Stock

October Flange Stock: 30,000 Pcs
Includes ASME B16.5 titanium weld neck flanges, slip-on flanges and blind flanges (Class 150 / 300 / 600).
- Material: Gr2 (TA2) / Gr12 (TA10)
- Size: 1/2"–24" (DN15–DN600)
- Stock lead time: 7–10 working days; urgent orders split & prioritized.

What is a Class 300 Titanium Weld Neck Flange?

A weld neck flange (WN) has a long tapered hub butt-welded to the pipe, giving the best fatigue, thermal-cycle and stress-distribution performance of all flange types. Class 300 is a higher-pressure ASME B16.5 designation than Class 150, used for corrosive process lines where pressure, temperature and sealing reliability all matter.

Made from titanium Gr2 (TA2), the flange resists chlorides, seawater, dilute acid and oxidizing media where stainless steel pits or cracks. For severe crevice-corrosion duty, Gr12 (TA10) is offered.

Why Class 300 + Titanium?

Requirement	Why Class 300 Ti WN works
Higher pressure / temperature	Thicker ring, larger hub, stronger bolt pattern than Class 150
Corrosive media	Gr2 passive film resists Cl⁻, H₂SO₄, HCl dilute, brine, seawater
High sealing integrity	Long hub reduces weld-root stress; RF face suits spiral-wound / PTFE gaskets
Long service life	No rust, no metal-ion contamination, low lifecycle cost
Critical process	Hydrometallurgy SX, chlor-alkali, pharma CIP, FGD, seawater RO

Key Specifications

Standard: ASME / ANSI B16.5

Type: Weld Neck (WN), Raised Face (RF)

Material: Gr2 (TA2), Gr7, Gr12 (TA10), Gr5 (TC4) on request

Pressure Class: Class 300 (150 / 600 / 900+ available)

Size: 1/2"–24" (DN15–DN600), larger forged to drawing

Facing: RF standard; FF / RTJ optional

Pipe schedule: SCH 10S / 40S / 80S / XXS

Forging: ASTM B381 titanium forgings

Machining: CNC turning, drilling, facing per B16.5

RF height: 6.4 mm (Class 300 and above)

Class 300 Weld Neck Flange — Common Dimensions (ASME B16.5 RF, mm)

NPS	Flange OD (mm)	Bolt Circle (mm)	Thickness (mm)	Bolts	Hub OD at Base (mm)	Bore (mm)
1/2"	95.2	66.7	14.2	4 × M16	38.1	21.3
1"	123.8	88.9	17.5	4 × M16	54.0	33.4
2"	165.1	127.0	22.4	8 × M16	84.1	60.3
4"	254.0	200.0	31.8	8 × M20	146.0	114.3
6"	317.5	269.9	35.1	12 × M20	206.0	168.3
8"	381.0	330.2	41.1	12 × M24	260.3	219.1
12"	520.7	450.8	50.8	16 × M27	375.0	323.8

Dimensions are ASME B16.5 Class 300 reference values; bore must match pipe schedule. Full drilling chart on request.

Manufacturing & Quality Control

Titanium billet / forging stock → UT check
Closed-die forging (ASTM B381) → annealing / stress relieving
CNC machining: hub taper, RF face, bolt holes, bevel end
Pickling + passivation (restore TiO₂ passive film)
Dimensional inspection per ASME B16.5
PT on machined surfaces, UT on forgings
Bore / schedule verification against pipe spec
EN 10204 3.1 MTR, heat-number traceability
Pearl-cotton + plywood case export packing

Applications

Industry	Class 300 Ti WN flange use
Hydrometallurgy	SX-EW solvent extraction, acid leach, electrolyte return lines
Chlor-alkali	Chlorine scrubbers, brine circulation, caustic transfer
Chemical / fine chemical	Corrosive solvent, catalyst slurry, high-purity reagent lines
Seawater / desalination	Intake, RO concentrate, cooling water with chloride
Pharma / semiconductor	CIP/SIP, purified water, no metal-ion contamination
Environmental	FGD, electroplating wastewater, high-salt effluent

How to order (Class 300 WN)

Parameter	Example
Standard	ASME B16.5
Type	Weld Neck (WN)
Material	Gr2 (TA2)
Class	300
Size	4" / DN100
Facing	RF
Pipe schedule	SCH 40S
Quantity	40 pcs

Lead Time & Warranty

Stock flanges: 7–10 days (within 30,000 pcs October flange stock)
Non-standard Class 300 / large size: 15–30 days
Flange + pipe + fittings package: 20–35 days
Warranty: 24 months on material conformity & forging quality
Documents: MTR 3.1, UT/PT report, dimension inspection sheet

Need Class 300 Titanium Weld Neck Flanges for higher-pressure corrosive lines?
Call / WeChat: +86 15909236031
Email: qy006@sxqytd.com

Send size × class × material × schedule × quantity → firm quote within 4 hours.

Shaanxi Qianyi Tuoda Technology Co., Ltd. — Baoji Titanium Equipment & Fitting Supplier

ASME B16.5 Titanium Weld Neck Flange Class 300

ПРЕДЫДУЩАЯ：ASME B16.5 Titanium Weld Neck Flange Class 150 СЛЕДУЮЩАЯ：Class 600 ASME B16.5 Titanium Weld Neck Flange

Получить бесплатное предложение

Опишите ваши требования — марка, размер и количество. Ответим в течение 24 часов.

Предпочитаете чат? WhatsApp +86 188 2967 9311 или напишите на sales@sxqytd.com.

ASME B16.5 Titanium Weld Neck Flange Class 300

Обзор продукции

ASME B16.5 Titanium Weld Neck Flange — Class 300 (RF, Gr2 / TA2)

What is a Class 300 Titanium Weld Neck Flange?

Why Class 300 + Titanium?

Key Specifications

Class 300 Weld Neck Flange — Common Dimensions (ASME B16.5 RF, mm)

Manufacturing & Quality Control

Applications

How to order (Class 300 WN)

Lead Time & Warranty

Похожие товары

Титановый приварной фланец с ш

Титановый фланец Gr2 WN/SO/BL

Титановый фланец с внутренней

Титановый резьбовой фланец с ш