Yuhong Group is one of the largest steel material group company in China, which has more than 35 years experience, material cover: stainless steel , duplex steel , super duplex , nickel alloy , copper alloy , Cr-Mo Alloy , Titanium , Carbon Steel . Products cover : Fin Tube, Steel Pipe, Steel Tube, Fitting, Flange ,Tubesheet, Baffle, Tube bundle, Girth Flange , Connection Flange, Heat Exchanger, Pressure Vessel , Air Cooler . And our products export to more than 85 countries . "YUHONG" brand already won good reputation in many countries.
ASME SB622 / SB622M: Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube.
ASTM B622: Standard Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube.
ASME SB829 / SB829M: Specification for General Requirements for Nickel and Nickel-Alloy Seamless Pipe and Tube.
NACE MR0175 / ISO 15156: Petroleum and Natural Gas Industries — Materials for Use in H2S-Containing Environments in Oil and Gas Production.
DIN 17751: Technical delivery conditions for seamless nickel and nickel alloy tubes.
| C | Cr | Co | Fe | Mn | Mo | Ni | P |
|---|---|---|---|---|---|---|---|
| .010 max | 20-22.5 | 2.5 max | 2.0-6.0 | .50 max | 12.5-14.5 | Balance | .02 max |
| .08 max | .02 max | 2.5-3.5 | .35 max |
Tensile Strength (Minimum): 690 MPa (100 ksi)
Yield Strength 0.2% Offset (Minimum): 310 MPa (45 ksi)
Elongation in 2 in. / 50 mm (Minimum): 45%
Delivery Condition: Solution Annealed and Descaled / Pickled / Bright Annealed.
Heat Treatment: Solution annealing performed at a minimum temperature of 1121°C (2050°F) followed by rapid quenching in water or air.
Typical Room Temperature Tensile Properties of Annealed Material
| Product Form | Tensile (ksi) | 0.2% Yield (ksi) | Elongation % | Hardness (HRb) |
|---|---|---|---|---|
| Plate (.25"-1.75") | 112 | 53 | 62 | 89 |
| Sheet (.038"-.15") | 122 | 63 | 54 | 93 |
| Bar (.50"-5.50") | 115 | 55 | 60 | 89 |
Dimensional Ranges & Tolerances
Outside Diameter (OD): 6.0 mm to 219.1 mm (1/8 in. to 8 in. Nominal Pipe Size).
Wall Thickness (WT): 0.5 mm to 20.0 mm (SCH 5S, SCH 10S, SCH 40S, SCH 80S, BWG 10 to BWG 22).
Length: Single Random, Double Random, or Cut Lengths up to 18,000 mm.
Tolerances: Outside diameter, wall thickness, and straightness conform strictly to ASME SB829 / ASTM B829.
Nickel & High-Alloy Seamless Pipe/Tube
ASME SB163 / SB167 / SB444 / SB619 / SB622 / SB626
UNS N02200 (Nickel 200), UNS N02201 (Nickel 201)
UNS N04400 (Monel 400), UNS N05500 (Monel K500)
UNS N06600 (Inconel 600), UNS N06601 (Inconel 601), UNS N06625 (Inconel 625)
UNS N06900 (Inconel 690)
UNS N08800 (Incoloy 800), UNS N08810 (Incoloy 800H), UNS N08811 (Incoloy 800HT), UNS N08825 (Incoloy 825)
UNS N10276 (Hastelloy C-276), UNS N10665 (Hastelloy B-2), UNS N10675 (Hastelloy B-3), UNS N06022 (Hastelloy C-22), UNS N06059 (Alloy 59)
UNS N08020 (Alloy 20)
Stainless & Duplex Steel Pipe/Tube
ASME SA213 / SA312 / SA249 / SA789 / SA790
TP304, TP304L, TP304H, TP316, TP316L, TP316Ti, TP317L, TP321, TP321H, TP347, TP347H, TP904L, S31254 (254SMO)
UNS S31803, S32205 (Duplex 2205), UNS S32750 (Super Duplex 2507), UNS S32760, UNS S32304
Carbon & Low-Alloy Boiler/Heat Exchanger Tube
ASME SA179, SA192, SA210 Grade A1 / C, SA178
ASME SA213 Grade T1, T5, T9, T11, T12, T22, T91
ASME SA333 Grade 1, Grade 3, Grade 6
Chemical & Petrochemical Processing: Reaction vessels, columns, evaporators, agitators, and heat exchangers handling aggressive oxidizing and reducing acid media, organic/inorganic chlorides, acetic anhydride, and formic/acetic acids.
Oil & Gas Production: Downhole equipment, sour gas handling systems, oilfield gathering lines, and heat exchangers exposed to high-pressure, high-temperature (HPHT) environments containing hydrogen sulfide ($\text{H}_2\text{S}$), carbon dioxide ($\text{CO}_2$), and chloride-rich brine (NACE MR0175 / ISO 15156 compliant).
Pollution Control & Environmental Systems: Flue Gas Desulfurization (FGD) systems, limestone scrubbers, reheaters, wet scrubbers, and waste gas incineration units subject to severe acid condensation and pitting corrosion.
Pulp & Paper Manufacturing: Bleaching plants utilizing chlorine dioxide ($\text{ClO}_2$), hypochlorite, and sodium hypochlorite, including bleach washing equipment, digesters, and chlorine dioxide generators.
Power Generation & Boiler Systems: High-pressure superheaters, reheaters, feed-water heaters, and condensers operating under high thermal stress and corrosive water chemistry conditions.
Pharmaceutical & Fine Chemical Industry: High-purity heat exchangers, condensers, and process piping requiring high surface cleanliness and resistance to aggressive solvent/acid mixtures to prevent product contamination.
Marine & Offshore Engineering: Seawater coolers, offshore platform heat exchangers, and marine piping systems requiring resistance to localized pitting and crevice corrosion in seawater and marine atmospheric environments.
