BFe10-1-1 Iron White Copper Standard GB/T 2059-2000

BFe10-1-1 Iron White Copper

BFe10-1-1 is a structural iron white copper with a low nickel content.

The addition of Fe and Mn in the BFe10-1-1 alloy significantly improves the material's resistance to erosion. In clean seawater, the alloy can withstand a water flow velocity of 2.2–2.5%/s. In slightly saline solutions, the maximum acceptable velocity can reach 4 m/s. This alloy avoids stress corrosion cracking and high-temperature dezincification. Therefore, it exhibits excellent corrosion resistance to clean or moderately polluted seawater and estuary water, making it widely used in heat exchangers that utilize seawater in power plants, desalination facilities, and petrochemical plants.

As a result, BFe10-1-1 is mostly used in the form of plates and tubes.

Reference standard: GB/T 2059-2000

Chemical Composition

Copper Cu: Balance

Nickel + Cobalt Ni+Co: 9.0–11.0

Tin: ≤0.03

Zinc Zn: ≤0.3

Lead Pb: ≤0.02

Phosphorus P: ≤0.006

Iron Fe: 1.0–1.5

Manganese Mn: 0.5–1.0

Silicon Si: ≤0.15

Sulfur: ≤0.01

Carbon C: ≤0.05

Note: ≤0.7 (impurities)

Tensile Strength σ (MPa): ≥275

Elongation δ10 (%): ≥28

Note: Room temperature tensile mechanical properties of strip

Sample size: Thickness ≥0.3

Corrosion Resistance

The corrosion rates of BFe10-1-1 alloys with different rare earth contents were measured in flowing seawater medium, and corrosion products were analyzed using X-ray diffraction and scanning electron microscopy.

Results showed:

For BFe10-1-1 alloys of the same composition, the higher the seawater flow velocity, the greater the corrosion rate.

In flowing artificial seawater, the main corrosion type of BFe10-1-1 alloy is exfoliation corrosion. When the rare earth content is 0.04%, the alloy exhibits the best seawater corrosion resistance, forming a dense corrosion product layer containing rare earth phases (such as CeNi5) with fewer microcracks, firmly bonded to the substrate, effectively slowing the corrosion rate and improving corrosion resistance.

When the rare earth content is too high, corrosion resistance decreases instead.

Heat Treatment Specifications

Casting temperature: 1330–1350°C

Annealing temperature: 780–810°C

Hot extrusion processing temperature: 900–960°C

Low-temperature annealing for stress relief: 250–300°C.

Shanghai Qianfu Metal Materials Co., Ltd. is an enterprise specializing in the production and sales of non-ferrous metal materials. To meet the special needs of our customers, we have specially imported copper materials including: oxygen-free copper, red copper, phosphorus deoxidized copper, brass, lead brass, tin brass, iron brass, aluminum brass, manganese brass, silicon brass, nickel brass, tin bronze, tin phosphor bronze, aluminum bronze, beryllium bronze, chromium bronze, zirconium bronze, chromium zirconium bronze, iron bronze, nickel silicon bronze, cadmium bronze, magnesium bronze, silicon bronze, zinc white copper, iron white copper, aluminum white copper, manganese white copper, and over 50 other series. We regularly stock various specifications: copper strips, copper tubes, copper rods, copper thin plates, copper thick plates, copper plates, copper strips.

Main products:

1. Lead Brass/Lead Bronze: C19150, C31400, C31600, C36000, C33500, UH-12, C19160, etc.

2. Phosphor Bronze: Hsn62-1, Qsn4-3, Qsn5-5-5, Qsn6.5-0.1, Qsn4-0.3, Qsn4-4-2.5, Qsn4-4-4, QSn7-0.2, QSn6-6-3, etc.

3. Tin Phosphor Bronze: C93200/SAE660, C93700/SAE64, C54400, C51000, C52100, C48500, C46200, CC493K, etc.

4. Silicon Bronze/Silicon Brass: HSi80-3, QSi3-3.5-1.5, QSi3-1, QSi1-3, QSi1.8, QSi1.5-0.3, C65100, C65500, C65800, etc.

5. Nickel White Copper/Copper-Nickel Alloys: C71000, C70400, C71500, C70600, B10, B19, B20, B30, BFe30-1-1, BFe10-1-1, C75200, C79200, Monel400, MonelK500, N04400, N05500, etc.

6. Manganese Brass/Manganese White Copper: HMn62-3-1, QMn5, HMn57-3-1, HMn58-2, BMn3-12, BMn40-1.5, etc.

7. Aluminum Bronze: QAl9-2, QAl9-4, QAl10-3-1.5, QAl10-4-4, C62300, C61400, C63000, C63200, C95400, ZCuZn25Al6Fe3Mn3

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