Alloy 718 N07718 ASTM B637 Blind Plate Flange Forged ASME B16.47 Series A B Size 2"

Alloy 718 N07718 ASTM B637 Blind Pipe Flanges Forged ASME B16.47 Series A B Size 2'

Applied Standard for Nickel Alloy Flange:

Chemical Composition

Limiting Chemical Composition, %

Ni................ Balance

Cr................1.00 Max.

Mo............. 26.0 to 30.0

Mn..............1.00 Max.

Fe............... 2.00 Max.

Si.................0.10 Max.

C................ 0.02 Max.

P..................0.040 Max.

Co.............. 1.00 Max.

S..................0.030 Max.

 Hastelloy B2 Specification:

Common Trade Names:
Hastelloy B2, Alloy B2; Nimofer 6928

Alloy B2 (UNS N10665 / W.Nr. 2.4617) is a solid solution strengthened, nickel-molybdenum alloy, typically used in extreme reducing conditions. B2 has significantly lower carbon, silicon and iron compared to its’ predecessor, Alloy B (UNS N10001), making the alloy less susceptible to decreased corrosion resistance in the weld zone, in the as-welded condition. Controlling other alloying elements such as iron and chromium
solved other issues concerning fabricability. Stringent chemistry control along with years of development has resulted in the alloy used today, both in Alloy B2 and Alloy B-3 Today, Alloy B2 with restricted chemistry can be used in the welded condition and is less susceptible to SCC under many conditions. As always, care must taken in selecting the right alloy for the desired application.

Alloy B2 should not be used at temperatures between 1000°F and 1600°F as the alloy forms secondary phases that could decrease the ductility of the material.

Available Product Forms:
Plate, Sheet, Bar, Pipe

The difference between Hastelloy B2 ASME B16.47 Series A and Series B

The standard ASME B16.47 is further divided into ASME B16.47 series A and ASME B16.47 series B flange for Blind flange and Weldneck flange. Series B flange was also formerly known as API 605 flange. Term B16.47 or B 16 47 or ANSI B 16 47 are all used interchangeabily and refers to the same standard.

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. Materials covered in this standard are as that in ASME B16.5 except for nickel alloys which means they share the same pressure-temperature chart for the selection of flange materials.

Generally speaking, ASME B16 47 Series A flanges are much thicker, heavier and stronger than Series B flanges in the same size and pressure rating thus can withstand more external loading than Series B type. ASME B16.47 Series B flanges need more but smaller fasteners (bolts & nuts) than Series A flanges and have a smaller bolt circle diameter than that of Series A flanges. The smaller bolt circle diameter results in less flange movement after installation. Both Series A and Series B standards define weld neck flanges and blind flanges in raised face type (RF) but only Series A defines ring type joint (RTJ) flanges from Class 300 through Class 900 within this standard. From a commercial point of view, ASME B16.47 Series A flanges are more expensive than ASME B16 47 Series B flanges.

Product Attribute

Supply Ability:40000Pieces / per Month

Packaging & Delivery

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

Port:Shanghai/Tianjin

Product Description:

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 safe 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.