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2" Class150 Stainless Steel Weld Neck Flange ASTM B564 Alloy 31 UNS N08031

ASTM B564 UNS N08031 ASME B16.5Weld Neck Pipe Flanges Alloy 31 WN SO BL Flange

1. Information of Alloy 31

Alloy 31, N08031, 1.4562,
Chemical composition(%)	Carbon, max	0.015
	Manganese, max	2.0
	Phosphorus, max	0.020
	Sulfur, max	0.010
	Silicon, max	0.3
	Nickel	30.0~32.0
	Chromium	26.0~28.0
	Molybdenum	6.0~7.0
	Copper	1.0~1.4
	Nitrogen	0.15~0.25
	Iron	balance
Tensile strength(MPa, min)		650
0.2% Yield strength(MPa, min)		276
Elongation(%, min)		40

2. ASME / ANSI B16.5 Flanges Manufacturers in HT PIPE Specification

ASME B16.5 Flange Size Chart	1/2" (15 NB) to 48" (1200NB)
ASME B16.5 Flange Pressure Rating	Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
ASME B16.5 Flange Pressure Calculation in DIN	6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
ASME Flange Standards	ANSI/ASME B16.5
JIS	5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
UNI	6Bar 10Bar 16Bar 25Bar 40Bar
EN	6Bar 10Bar 16Bar 25Bar 40Bar
Coating	Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Most common types of ANSI B16.5 Flange	Forged / Threaded / Screwed / Plate
Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
Production technique	Forged, Heat treated and machined
Connect Type/ Flange Face Type	Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove
Special design	As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2") to 200 NB (8") Equal and Reducing Configurations
Test	Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Equipment	Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Origin	Indian / West Europe / Japan / USA / Korean
ANSI B16.5 Flange Uses & application	Heavy oil refineries. Bitumen upgraders. Nuclear power (mostly seamless). Petrochemicals and acids.
Export to	Singapore,Dubai, Saudi Arabia, Spain,Peru, Brazil, USA, Ireland, Iran, India, Indonesia, Ukraine, Canada, Thailand, Korea,Egypt, Oman etc.

3. ASME B16.5 Class 150 Dimensions in MM

Nominal Size	Outside Diameter (OD)	Min. Thickness (T)	RF Dia. (R)	No. of Bolt Holes	Diameter of Holes	Bolt Circle (BC)	SO Bore ID (SB)	WN Bore ID (WB)	Dia. Hub Base (HB)	Dia. of Hub Top (HT)	SO LTH (SL)	WN LTH (WL)
1⁄2	3.50	0.38	1.38	4	0.62	2.38	0.88	0.62	1.19	0.84	0.56	1.81
3⁄4	3.88	0.44	1.69	4	0.62	2.75	1.09	0.82	1.50	1.05	0.56	2.00
1	4.25	0.50	2.00	4	0.62	3.12	1.36	1.05	1.94	1.32	0.62	2.12
11⁄4	4.62	0.56	2.50	4	0.62	3.50	1.70	1.38	2.31	1.66	0.75	2.19
11⁄2	5.00	0.62	2.88	4	0.62	3.88	1.95	1.61	2.56	1.90	0.81	2.38
2	6.00	0.69	3.62	4	0.75	4.75	2.44	2.07	3.06	2.38	0.94	2.44
21⁄2	7.00	0.81	4.12	4	0.75	5.50	2.94	2.47	3.56	2.88	1.06	2.69
3	7.50	0.88	5.00	4	0.75	6.00	3.57	3.07	4.25	3.50	1.12	2.69
31⁄2	8.50	0.88	5.50	8	0.75	7.00	4.07	3.55	4.81	4.00	1.19	2.75
4	9.00	0.88	6.19	8	0.75	7.50	4.57	4.03	5.31	4.50	1.25	2.94
5	10.00	0.88	7.31	8	0.88	8.50	5.66	5.05	6.44	5.56	1.38	3.44
6	11.00	0.94	8.50	8	0.88	9.50	6.72	6.07	7.56	6.63	1.50	3.44
8	13.50	1.06	10.62	8	0.88	11.75	8.72	7.98	9.69	8.63	1.69	3.94
10	16.00	1.12	12.75	12	1.00	14.25	10.88	10.02	12.00	10.75	1.88	3.94
12	19.00	1.19	15.00	12	1.00	17.00	12.88	12.00	14.38	12.75	2.12	4.44
14	21.00	1.31	16.25	12	1.12	18.75	14.14	13.25	15.75	14.00	2.19	4.94
16	23.50	1.38	18.50	16	1.12	21.25	16.16	15.25	18.00	16.00	2.44	4.94
18	25.00	1.50	21.00	16	1.25	22.75	18.18	17.25	19.88	18.00	2.62	5.44
20	27.50	1.62	23.00	20	1.25	25.00	20.20	19.25	22.00	20.00	2.81	5.62
22	29.50	1.75	25.25	20	1.38	27.25	22.22	21.25	24.25	22.00	3.07	5.82
24	32.00	1.81	27.25	20	1.38	29.50	24.25	23.25	26.12	24.00	3.19	5.94

.DIMENSIONS ARE IN INCHES
.Bolt hole diameter 1/8" larger than bolt diameter

4. ASME B16.5 Flange Price List

Material	Size	Price / pcs
ASME B16.5 Class 150 Flanges	DN50	£ 50.60
ASME B16.5 Class 300 Flanges Manufacturers	DN65	£ 50.10
ASME B16.5 Class 600 Flanges	DN80	£ 65.30
ASME B16.5 Class 400 Flanges	DN65	£ 55.20
ASME B16.5 Class 900 Flanges	DN100	£ 70.20

Product Attribute

Place of Origin	China	Brand Name	BOYUE
Standard	ANSI, ISO, ASME, DIN, ASTM	Type	Weld Neck Pipe Flanges
ModelNumber	Nickel Alloy	Thickness	#150,#300,#600,.#900,#1500,#2500
Packing	Ply-Wood Cases	Payment	30%TT+70% Balance

Supply Ability:40000Pieces / per Month

Packaging & Delivery

Packaging Details:Generally plywooden case or following customer's requirement.

Port:Shanghai/Tianjin

Commerce Clause

Minimum Order Quantity:	1pcs
Price:	Depending on quantity
Payment Terms:	T/T or Western Union or LC
Supply Ability:	40000pcs per month
Delivery Time:	10-100 days depending on quantity
Packaging Details:	PLY-WOODEN CASE OR PALLET

Why Choose Us

1.One-Stop Service,One Single Source.

2.No MOQ.

3.Best quality,competitive price

4.Fast Reply.

5.On-Time Delivery

6.Professional sales and technical team .

FAQ

Q1: Are you a factory or a trade company?
A1: We are a professional manufacturer for designing and producing of Large-size products.(View Mor)

Q2: Do you make customized products or finished parts?
A2: All parts are custom made only, and in stock, we can produce based on your drawings.

Q3: Will my drawing be e after you get it?
A3: Yes, we will not release your design to third party unless with your permission.

Q4: What is the MOQ?
A4: Small order is acceptable, but the more, the cheaper.

Q5: How about the samples?
A5: We are happy to make prototype part or sample for clients to ensure quality standard, but it’s charged according to your drawing.

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Categories	Weld Neck Pipe Flanges
Brand Name:	BoYue
Model Number:	BYWN00017
Certification:	ISO,BV,SGS
Place of Origin:	China
MOQ:	1 pcs
Price:	Negotiable
Payment Terms:	L/C, T/T, Western Union
Supply Ability:	40000pcs per month
Delivery Time:	10-100 days depending on quantity
Packaging Details:	PLY-WOODEN CASE OR PALLET
SIZE:	1/2" - 24"
PROCESS:	High Pressure Die Casting+machining
CLASS RATING:	150#300#600#900#1500#2500#
SEALING FACE:	RF FF RTJ
FACE FINISH:	SMOOTH /STOCK FINISH
PRODUCT NAME:	RF FF RTJ
APPLICATION:	CHEMICAL /OIL/GAS/ENERGY
STANDARD:	ANSI JIS DIN ASME

Standard	Type		Class	Size
ASME B16.5	WN/LWN/SO/Blind/Lap Joint		150#-2500#	1/2"-24" (Except Blind Flange 2500lb 1/2"-12")
	SW flange		150#-1500#	1/2"-3" (Except 1500# 1/2"-2 1/2")
	Threaded		150#-900#	1/2"-24"
			1500# 2500#	1/2"-2 1/2"
ASME B16.47 Series A	WN/blind flange		150# -900#	22"-48" (Except 900# Size:26"-48")
ASME B16.47 Series B	WN/blind flange		75#-300#	26"-48"
			400# 600# 900#	26"-36"
DIN2527	Blind flange		PN6-PN100	DN10-DN1000
DIN2543	SO flange		PN16	DN10-DN1000
DIN2544	SO flange		PN25	DN10-DN1000
DIN2545	SO flange		PN40	DN10-DN500
DIN2565	Threaded flange with Neck		PN6	DN6-DN200
DIN2566	Threaded flange with Neck		PN16	DN6-DN150
DIN2567	Threaded flange with Neck		PN25 PN40	DN6-DN150
DIN2568	Threaded flange with Neck		PN64	DN10-DN150
DIN2569	Threaded flange with Neck		PN100	DN10-DN150
EN1092-1:2002	Plate flange for welding/ loose plate flange with weld-on plate collar or for lapped pipe end/Blind Flange/WN flange		PN2.5-PN100	DN10-DN4000
JIS B2220	Welding flange, lap joint flange, threaded flange		PN6-PN100	DN10-DN1500
BS4504 BS10 TableD/E	Plate Flange for welding/ WN flange/blank Flange		PN6-PN100	DN10-DN1500
Other Products	Anchor/swivel/girth/l ap joint/reducing/orifice
	Spectacle blind/paddle blind/ spacer ring/orifice plate/bleed ring
	Special Products: rings/ forgings/disc/shaft sleeves
Sealing Surface	RF FF RTJ TF GF LF LM
Flange Face Finish	Stock finish/spiral serrated/ concentric serrated/smooth finish (Ra 3.2 and 6.3 micrometers)
	125-250 AARH(it is called smooth finish)
	250-500 AARH(it is called stock finish)
Coating	Vanish, yellow paint, anti-rust oil, galvanizing etc
Material Grade	Nickel Alloy Steel		ASTM/ASME B/SB564 UNS N02200(NICKEL 200), UNS N04400(MONEL 400),
			UNS N08825( INCOLOY 825),UNS N06600(INCONEL 600),
			UNS N06601(INCONEL 601), UNS N06625(INCONEL 625), UNS N10675(HASTELLOY C276),
			ASTM/ASME B/SB160 UNS N02201(NICKEL 201), ASTM B/SB472 UNS N08020(Alloy 20)
	Copper Alloy		ASTM/ASME B/SB151 UNS C70600(CuNi 90/10), C71500(CuNi 70/30)
	Stainless Steel		ASTM/ASME A/SA182 F304,304L,304H,309H,310H, 316,316H,316L,316LN,
			317,317L,321,321H,347,347H
	Duplex and Super Duplex Steel		ASTM/ASME A/SA182 F44,F45,F51,F53,F55,F60,F61
	Carbon steel		ASTM /ASME A/SA105(N)
	Low Temp Carbon Steel		ASTM/ASME A/SA350 LF2
	High Yield Carbon Steel		ASTM/ASME A/SA694 F52,F56 F60, F65, F70
	Alloy Steel		ASTM/ASME A/SA182 GR F5, F9, F11,F12,F22,F91
	Titanium		ASTM/ASME B/SB381 Grade 2, Grade 5, Grade 7
Carbon Steel		ASTM A105
Alloy Steel:		ASTM A182 F1/F5/F9/F11/F22/F91/F92 Etc
Duplex Steel:		Duplex F51 2205 UNS S31803, Super Duplex 2507 (UNS S32750), F55 (UNS S32760)
Stainless Steel:		ASTM A182 F304 F304L F304H F309 F310 F310S F316 F316L F316 F316Ti F317 F317L F321 F347 F347H
Duplex Stainless Steel:		ASTM A182 F51/F53/F55/F60
Nicke alloys:		Nickel 200, Monel 400, Inconel 600/625, Incoloy 825/800
Cu-Ni:		90/10,70/30