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You are here: Home » Products » Forged Steel Flange » Class 300 Weld Neck Flange
Tel:(+86)372-2155516
 
Mobile: (+86)18625862121
 
 
Contact: Jerry Zhao
 
Address: No 888 Xigangshen Road Jiading Shanghai
 

Size Range: 1/2" -  80" / DN15 - 2000

Thickness Schedule: SCH 10 - SCH 160, XXS

 

Standard: ANSI / ASME B16.9 / MSS SP 43

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Size Range: 1/2" -  80" / DN15 - 2000


Thickness Schedule: SCH 10 - SCH 160, XXS


Standard: ANSI / ASME B16.9 / MSS SP 43
 

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Size Range: 1/2" - 48" / DN15 - 1200

Thickness Schedule: SCH 10 - SCH 160, XXS


Standard: ANSI / ASME B16.9

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We are a manufacturer, supplier and exporter of ASME B16.9 butt weld equal and reducing tee in China.

ANSI / ASME B16.9 steel pipe tee dimensions and weight chart is free for you.

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Shape Type: Equal and Reducing 

Size Range: 1/2" - 80" / DN15 - 2000

Thickness Schedule: SCH 10 - SCH 160, XXS

Standard: ANSI / ASME B16.9

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Type: Long Pattern (LP) and Short Pattern (SP)

Size Range: 1/2” - 24” / DN15 - 600

Thickness Schedule: SCH 10 - SCH 160, XXS

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Size Range: 3/4" - 60" / DN20 - 1500

Thickness Schedule: SCH 10 - SCH 160, XXS

Standard: ANSI / ASME B16.9 / MSS SP 43

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Size Range: 3/4" - 60" / DN20 - 1500

Thickness Schedule: SCH 10 - SCH 160, XXS

Standard: ANSI / ASME B16.9 & MSS SP-43

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Size Range: 1/2" - 48" / DN15 - 1200

Thickness Schedule: SCH 10 - SCH 160, XXS

Standard: ANSI / ASME B16.9

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Type: 90 Degree and 45 Degree

Shape: Straight and Reducing Elbow

Size: 1/8” – 4” / DN6 - DN100

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Shape: Equal and Reducing Tee

Size: 1/8"- 4" / DN6 - DN100

Pressure: Class 3000LBS, 6000Lbs, 9000lbs.

Standard: ASME B16.11, BS3799

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Shape: Equal Cross Tee and Reducing Cross Tee

Size Range: 1/8” – 4” / DN6 - DN100

Pressure Rating: Class 3000lbs, 6000lbs, 9000lbs.

Standard: GB/T 14383, ASME B16.11, BS3799

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Type: Full Coupling and Half Coupling

Shape: Straight Coupling and Reducing Coupling

Size Range: 1/8” – 4” / DN6 - DN100

Pressure Rating: Class 3000lbs, 6000lbs, 9000lbs

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Size Range: 1/8” - 3” / DN6 - DN80

Pressure Rating: Class 3000lbs


Standard: MSS SP-83

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Type: 90 Degree and 45 Degree Elbow

Shape: Straight and Reducing Elbow

Thread Type: NPT, PT, BSPP, BSPT, PF

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Shape: Equal and Reducing Tee

Size Range: 1/8” – 4” / DN6 - DN100

 

Pressure Rating: Class 2000 lbs, 3000 lbs, 6000 lbs

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Shape: Equal and Reducing

Size: 1/8" -  4" / DN6 - DN100

 

Pressure: Class 2000 lbs, 3000 lbs, 6000 lbs

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Type: Full and Half Coupling

Shape: Straight and Reducing Coupling

Thread Type: NPT, PT, BSPP, BSPT, PF

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Size Range: 1/8” – 4” / DN6 - DN100

Pressure Rating: Class 3000lbs, 6000lbs

 

Standard: ASME B16.11, BS3799, EN 10241

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Size Range: 1/8” - 3” / DN6 - DN80

Pressure Rating: Class 3000lbs

 

Standard: MSS SP-83

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Class 300 Weld Neck Flange

Type: Regular and Long Neck

Sealing Face: RF, FF, FTJ

Size Range: 1/2" -  60" / DN15 - DN1500

Pressure Rating: Class 150, 300, 600, 900, 1500, 2500lb
Availability:
Quantity:

Introduction of Class 300 Weld Neck Flange

Flange is a connecting fitting commonly used to join pipes or pipe components together or to secure equipment to a surface. Flanges can typically be round or square and are used in various industrial applications.

Class 300 weld neck flange is recognized for its long-tapered hub that provides mechanical strength. Weld neck flanges are high integrity flanges and are available in all sizes, all common face types (flat, raised, RTJ), and all classes.

Class 300 weld neck flanges are used in severe and critical conditions. Some of these include high pressure, wide fluctuations in temperature and pressure, high temperature, fluids that are volatile and hazardous, and temperatures in the sub-zero range.

Specification of Weld Neck Flange

Shape Type Regular and Long Neck
Sealing Face RF, FF, FTJ
Size Range 1/2" - 60"/ DN15 - DN1500
Pressure Rating Class 150, 300, 600, 900, 1500, 2500lb
Standard ASME B16.5, ASME B16.47 Series A/B

Materials of Weld Neck Flange

Carbon steel

ASTM A105

Low temperature steel

A350 LF2

Pipeline steel

A694 F42/46/52/56/60/65/70

Alloy steel

A182 F5/9/11/12/22/91/92

Stainless Steel

A182 F304/316/317/310S/321/347/904L

ASTM A105 Class 300 Weld Neck Flange

ASTM A105 is a commonly used standard developed by the American Society for Testing and Materials (ASTM), specifically for the manufacture of carbon steel forgings. This standard specifies the chemical composition, mechanical properties, and other related requirements of carbon steel forgings to ensure their quality and reliability. Class 300 refers to the pressure rating of the flange. 

ASTM A105 forgings are mainly made of carbon structural steel, and their chemical

Chemical Composition

CHEMICAL LIMITS C Mn P S Si Cu Ni Cr Mo V
ASTM A105 MIN
0.60

0.10




MAX 0.35 1.05 0.035 0.040 0.35 0.40 0.40 0.30 0.12 0.08

Mechanical Properties

MATERIAL T.S (MPA) Y.S (MPA) EL % R/A % HARDNESS
ASTM A105 485 min 250 min 22 min 30 min 197 max

ASTM A105 Class 300 weld neck flange is a high-performance and highly reliable pipeline connector widely used in various industrial fields.

Weight of Class 300 Weld Neck Flange

DN

NPS

WN Flange (kg)

15

1/2

0.8

20

3/4

1.0

25

1

1.5

32

1-1/4

2.0

40

1-1/2

3.0

50

2

3

65

2-1/2

5

80

3

7

100

4

12

125

5

16

150

6

20

200

8

30

250

10

44

300

12

63

350

14

88

400

16

110

450

18

133

500

20

162

600

24

235

Sealing Face Types

sealing face of flange

RF: Raised Face; FF: Flat Face; RTJ: Ring Joint Face

Application

Water supply

Oil

Gas

Petrochemical

Irrigation

Fire Services

Construction and General Industrial Applications

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Tel: (+86) 372-2155516
Mobile: (+86) 18625862121
Email:order@zzsteels.com
Contact: Jerry Zhao
Address: No 888 Xigangshen Road Jiading Shanghai

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