ASTM A105 Weld Neck Flange,A105 Flanges,ASME B16.47 A MSS SP44 Flanges

C&N is a  professional manufacturer of A105 flange in China,ANSI B16.5 ASTM A105 Weld Neck Flange,A105N Weld neck flange,A105 welding neck flange,A105 Bind flange,A105 Slip on Flanges,COMPLY WITH nace mr 0175 STANDARD.A105 WN RF Flange.

We also supply the A105 Flanges for ship building,marine applications from ABS,DNV-GL,BV,LR approved makers

Mill Test certificste EN 10204 3.1/3.2 certificate will be provided 

A105N Blind Flange,A105N Weld neck flange,A105N Slip on Flange

Our production scope:
ASTM/ASME/ANSIB16.5, B16.47, ASME/ANSIB16.48 flange
Weld neck flange,WNRF Flange,Welding neck raise face flange,

ASME B16.47 A MSS SP44 Flanges

Large Diameter Steel Flanges: NPS 26 through NPS 60 Metric/Inch Standard

asme B16.47 – 2017

ASME B16.47 A Flanges,A105N Weld neck Flanges,Blind Flanges

  • Blind flanges ASME B16.47 series A flanges (≥ NPS 26) are MSS SP-44 flanges.
    ASME has incorporated the MSS-SP44 specification into B16.47 Series A and the API 605 Specification into B16.47 series B.
    These specification include only Welding Neck and Blind Flanges.
  • Dimensions for Classes 400, 600 and 900 NPS 38 and larger for Series A flanges are the same as for the Series B flanges.
  • The length of the Stud Bolt does not include the height of the chamfers (points).

Facing RF/FF / RTJ

Material stainless steel :A 182 F 304/304L/316/316L/321/347,

Duplex F51/F53/F44/F55/F60/F61

Alloy steel :STM A694/ A694M F42/F46/F52/F56/F60/F70,A182  F5,F9,F11

Carbon steel:ASTM A 105, ST37.2    A 350 LF1, LF2, LF3,API 6A AISI 4130

Typeslip on flange, Weld Neck Flange Threaded Flange Blind Flange,  Orifice Flange socket weld flange, Spacer Ring, Paddle, Spectacle Blind Flange
Surface Treatment Surface galvanized, antirust coating, Epoxy & FBE Coating,protected with plastic caps
PackingPallet/Wooden case(Fumigation free)
CertificateISO9001,EN10204 3.1 MTC
Quality control In house and third party

ASTM A105

This specification covers standards for forged carbon steel piping components, that is, flanges, fittings, valves, and similar parts, for use in pressure systems at ambient and higher-temperature service conditions

CHEMICAL COMPOSITION % (ASTM A105)

STEEL DESIGNATION CHEMICAL COMPOSITION
SYMBOLIC C
max
Si Mn P
max
S
max
Cu
max
Ni
max
Cr
max
Mo
max
V
max
Nb
max
Cu + Ni + Cr + Mo
max
Cr + Mo
max
ASTM A105 0,35 0,10 ÷ 0,35 0,60 ÷ 1,05 0,035 0,040 0,40 0,40 0,30 0,12 0,08 0,02 1,00 0,32
STEEL QUALITY TENSILE TESTING
UNIFIED TENSILE STRENGTH
R
DEVIATION FROM PROPORTIONALITY
Rp 0,2 min
ELONGATION
A min
C
min
HB
max
N/mm2 N/mm2 % %
ASTM A105 485 250 22 30 187
ASTM A105 flanges Heat treatment

ASTM A105 flanges shall be manufactured as one piece by a hot-forging process. This hot-forging process, either die forging or open-die forging, is a compressive hot-working operation. The metal flows in the designed direction during plastic deformation to form a disc-like product that is near to the finished flange. The forging process also consolidates the material to produce an essentially wrought steel structure. The product is subsequently machined to the exact shape and size of finished flange.

How to order the A105 Flanges B16.47 A Flanges,

Example#1,ASTM A105 Weld Neck Flange, Raise Face,ASME B16.47 A, 28 Inch, Class 150

Example#2,ASTM A105 Flange, Blind, ASME B16.47 A, Raise Face Flange 28 Inch, Class 150

Difference between ASME B16.5, ASME B16.47 Series A, Series B and API 605 Flanges

ASME B16.5 standard covers Steel Pipe Flanges and Flanged Fittings from NPS 1/2 through NPS 24 Metric/Inch in pressure class 150 to class 2500. It covers pressure-temperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flanges and flanged fittings. Two very important flanges such as weld neck flange and blind flanges are very commonly used in piping systems. The term “B16.5” or “B16 5” is used interchangeability and refers to same standard. However, the standard ASME B16 5 (ANSI B16 5) only covers size up to 24 inches. For bigger sizes, ASME B16.47 standard covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for pipe flanges in sizes NPS 26 through NPS 60 and in ratings Classes 75, 150, 300, 400, 600, and 900.

There are ASME B16.47 series A and ASME B16.47 series B flange for Blind flange and Weld neck flange in ASME B16.47 standard. ASME B16.47 Series B flange was also formerly known as API 605 flange.

ASME B16.47(Large Diameter Steel Flanges) is a standard for large diameter steel pipe flanges sized from NPS 26 through NPS 60. The latest version provides dimensions and ratings in both metric and inch units. The ASME B16.47 incorporate MSS SP-44: Steel Pipeline Flanges and API 605: Large Diameter Carbon Steel Flanges. Therefore, the MSS SP-44 flanges are designated as ASME B16.47 Series A flanges, while API 605 flanges are designated as ASME B16.47 Series B flanges within this standard.

ASME B16 47 Series A flanges are much thicker, heavier and stronger than ASME B16 47 Series B flanges in the same size and pressure rating .

Our A105 Flange are comply with NACE MR 0175 requirement