Zhengzhou Huitong Pipeline Equipment Co.,Ltd.
Zhengzhou Huitong Pipeline Equipment Co., Ltd.
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Forged Stainless steel 321 flange thd flange
1.321 flange
We are well organized firm in the market, highly involved in offering a broad range of Stainless Steel 321 Flanges which is widely used in various industries. These products are developed and designed using optimum-quality raw material in accordance to industrial quality norms & standards. These flanges are highly appreciated for their sturdiness and robustness. Apart from this, we also offer customization facility of these products to our clients
2.Chemical Composition :
| % | Cr | Ni | C | Si | Mn | P | S | N | Ti | Fe |
| 321 | min:17.0 | min: 9.0 | max:0.08 | max:0.75 | max:2.0 | max:0.045 | max:0.03 | max:0.10 | min:5*(C+N) | Balance |
| max:19.0 | max:12.0 | max:0.70 | ||||||||
| 321H | min:17.0 | min: 9.0 | min:0.04 | min:18.0 | max:2.0 | max:0.045 | max:0.03 | max:0.10 | min:5*(C+N) | Balance |
| max:19.0 | max:12.0 | max:0.10 | max:20.0 | max:0.70 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
| 321 | min. max | - 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 | - | 9.0 12.0 | 0.10 | Ti=5(C+N) 0.70 |
The mechanical properties of grade 321 Stainless Steel Flanges are displayed in the following table.
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 321 | 515 | 205 | 40 | 95 | 217 |
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
3.Packaging showing
4.321 flange specification
| 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/lap 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 N10276(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 | ||