DILLIMAX 965 Pelat Baja Tahan Aus

DILLIMAX 965 Pelat Baja Tahan Aus

DILLIMAX 965 is a high strength quenched and tempered, fine grained structural steel with a minimum yield strength of 960 MPa (140 ksi)¹⁾ in its delivery condition ex works (referring to the lowest thickness range). Its mechanical properties are achieved by water quenching followed by tempering.

DILLIMAX 965 is preferentially used by the customers for welded steel structures within mechanical constructions, plant constructions and structural steel works, such as machines for structural engineering, conveying plants, hoists, cranes, flood gates and frameworks.

DILLIMAX 965 Product description

DILLIMAX 965 can be delivered in three qualities:

• Dasar (B) with minimum impact values down to -20 °C (-4 °F)¹⁾: DILLIMAX 965 B
  Steel number 1.8941 – S960Q according to EN 10025-6
• Mengira) with minimum impact values down to -40 °C (-40 °F)¹⁾: DILLIMAX 965 T
  Steel number 1.8933 – S960QL according to EN 10025-6
• Sangat tangguh (E) with minimum impact values down to -60 °C (-76 °F)¹⁾: DILLIMAX 965 E
  Steel number 1.8934 – S960QL1

DILLIMAX 965 can be delivered in thicknesses from 6 to 100 mm (¼ to 4 in.)¹⁾, according to the dimensional program. Dimensions, which deviate from the usual dimensional program, may be possible on request.

DILLIMAX 965 Chemical composition

For the ladle analysis the following limiting values in % are applicable:

Baja berbutir halus karena kandungan aluminium yang cukup.

CEV yang membatasi²⁾ values are partially below the values indicated by EN 10025-6 (where t is the nominal plate thickness):

^a) Nilai dalam tanda kurung hanya untuk informasi.

Nilai setara karbon yang lebih rendah dapat disetujui berdasarkan permintaan.

DILLIMAX 965 Delivery condition

Air dipadamkan dan ditempa menurut EN 10025-6.

¹⁾ Nilai dalam tanda kurung hanya untuk informasi.
²⁾ CEV = C +Mn/6 +(Cr+Mo+V)/5 + (Cu+Ni)/15

Sifat mekanik dan teknologi dalam kondisi pengiriman

^b) If not apparent, the yield strength R_p0.2 is measured instead.
^c) Nilai-nilai ini berlaku jika diuji menurut ASTM A370.

Nilai minimum yang lebih tinggi dapat disetujui berdasarkan permintaan.

DILLIMAX 965 Impact test on Charpy-V-specimens

^a) Nilai dalam tanda kurung hanya untuk informasi.

The specified minimum value is the average of 3 tests. One individual value may be below the minimum average value specified, provided that it is not less than 70 % of that value. For plate thicknesses below 12 mm (0.5 in)¹⁾, the test can be carried out on Charpy-V test specimens with reduced width; the minimum width must be 5 mm (0.2 in)¹⁾. The minimum impact value will be decreased proportionally.

DILLIMAX 965 Testing

Tensile and impact tests will be performed according to EN 10025-6 once per heat and 40 t. Tests on every heat treatment unit may be possible on request.

The specimens for the tensile test are prepared according to EN 10025-6. Testing is carried out on specimens of gauge length L₀ = 5,65⋅√S₀ atau L₀ = 5⋅d₀, in accordance with EN ISO 6892-1.

Uji tarik menurut ASTM A370 dapat disepakati.

The impact test will be carried out on Charpy-V-specimens in accordance with EN ISO 148-1. Unless otherwise agreed, the test will be performed at the lowest temperature of the corresponding quality on transverse test specimens taken as follows:

• for plate thicknesses < 40 mm (1.6 in)³⁾: the test specimen shall be taken in such a way that one side is not further away than 2 mm (0.08 in)³⁾ from a rolled surface.
• for plate thicknesses ≥ 40 mm (1.6 in)³⁾: ¼ of the plate thickness.

Kecuali disepakati lain, hasil pengujian didokumentasikan dalam sertifikat 3.1 sesuai dengan EN 10204.

menandai

Unless otherwise agreed, the marking is carried out via low stress steel stamps with at least the following information:

• steel grade (e.g. DILLIMAX 965 B, T or E)
• nomor panas
• nomor pelat induk dan pelat individu
• simbol pabrikan
• tanda perwakilan inspeksi resmi

³⁾ Nilai dalam tanda kurung hanya untuk informasi.

DILLIMAX 965 Processing

The entire processing and application techniques are of fundamental importance to the reliability of the products made from this steel. The user should ensure that his design, construction and processing methods are aligned with the material, correspond to the state-of-the-art that the fabricator has to comply with and are suitable for the intended use. The customer is responsible for the selection of the material. The recommendations of the EN 1011 (Welding) and CEN/TR 10347 (Forming) as well as recommendations regarding job safety in accordance with national rules should be observed.

DILLIMAX 965 Cold forming

Cold forming means forming below the maximum allowable stress relief temperature (560 °C/1040 °F) ⁴⁾.

DILLIMAX 965 can be cold formed with regard to its high yield strength. Flame cut or sheared edges in the bending area should be ground before cold forming. Cold forming is related to a hardening of the steel and to a decrease in toughness. Depending on the relevant design code this can result in the need of larger bending radiuses than indicated in the chart. For larger cold forming amounts we recommend you to consult the steel producer prior to ordering.

Selama pemrosesan, langkah-langkah keselamatan yang diperlukan harus diambil, sehingga tidak ada orang yang terkena bahaya kemungkinan patahnya benda kerja selama proses pembentukan.

Geometri berikut biasanya dapat dicapai dengan pembentukan dingin tanpa pembentukan cacat permukaan (di mana t adalah ketebalan pelat):

DILLIMAX 965 Hot forming

If the temperature of 560 °C (1040 °F)⁴⁾ is exceeded, the initial tempering will be altered so that the mechanical properties are affected. To regain the initial properties new quenching and tempering become necessary. However, water quenching of a formed work piece or component will often be less effective than the original quenching in the plate mill so that the fabricator may not be able to reestablish the properties required and therefore hot forming is not suitable.

Finally, it is the fabricator’s responsibility to obtain the required values of the steel through an appropriate heat treatment.

DILLIMAX 965 Welding and flame cutting

Due to its high yield strength, DILIMAX 965 requires special care during plate processing.

For flame cutting, the following minimum preheating temperatures are recommended: 50 °C (122 °F)⁴⁾ for plate thickness up to 20 mm(0.8 in)⁴⁾, 100 °C (212 °F)⁴⁾ for plates thickness up to 50 mm (2 in)⁴⁾ dan
150 °C (302 °F)⁴⁾ for thicker plates.

For general welding instructions, please consult the EN 1011-2. In order to ensure that the tensile strength of the weld metal fulfils the requirements of the base metal, the heat input and interpass temperature must be limited during welding. Experience has shown that the welding conditions should be chosen so that the cooling time t_8/5 does not exceed 8 seconds. This is applicable when using suitable filler materials of a corresponding yield strength class.

Kekuatan luluh yang tinggi dari bahan dasar harus diperhitungkan ketika memilih bahan pengisi. Perlu dipertimbangkan bahwa peningkatan masukan panas menyebabkan sifat tarik yang lebih rendah pada logam las. Jika perlakuan panas penghilang tegangan direncanakan selama atau setelah pemrosesan pelat, hal ini juga harus dipertimbangkan ketika memilih bahan pengisi.

To avoid hydrogen-induced cold cracking, only filler materials, which add very little hydrogen to the base metal, may be used. Therefore, shielded arc welding should be preferred. For manual arc welding, electrodes with basic coating (type HD<5 ml/100g in accordance with ISO 3690), and dried according to the manufacturer’s instructions, should be used.

⁴⁾ Nilai dalam tanda kurung hanya untuk informasi.

DILLIMAX 965 Heat treatment

Jika penghilangan tegangan harus dipertimbangkan karena peraturan konstruksi, alasan konstruktif, atau karena perlu untuk fabrikasi, silakan berkonsultasi dengan kami. Sifat-sifat komponen struktural dapat diubah dengan perlakuan panas pelepas tegangan.

Detailed instructions for flame cutting, welding, machining and about the structural properties of the DILIMAX are provided in the technical information “MAKE SAVINGS WITH HIGH STRENGTH STEELS – DILIMAX“.

DILLIMAX 965 General technical delivery requirements

Kecuali disepakati lain, persyaratan pengiriman teknis umum sesuai dengan EN 10021 berlaku.

Toleransi

Kecuali disepakati lain, toleransi akan sesuai dengan EN 10029, dengan kelas A untuk ketebalan dan tabel 4, grup baja H, untuk deviasi kerataan maksimum. Penyimpangan kerataan yang lebih kecil dapat dilakukan berdasarkan permintaan sebelum pemesanan.

Kualitas permukaan

Kecuali disepakati lain, spesifikasinya akan sesuai dengan EN 10163-2, kelas A2.

Catatan umum

Jika persyaratan tertentu diminta dan tidak tercakup dalam lembar data ini, silakan hubungi kami dengan spesifikasi untuk peninjauan dan persetujuan kami sebelum memesan. Informasi dalam lembar data ini adalah deskripsi produk. Lembar data ini diperbarui sesuai permintaan.