KSF60, KFSA80, NK Standard Forging Steel. KSF60 is one of the Japan Classification Society’s (Nippon Kaiji Kyokai: ClassNK) forged steel standards. There are three models: KSF60, KSFA80, and KSFA110.
The minimum yield strength for KSF60 is 60ksi x 9.8 = 590 MPa.
It is an acronym for the tensile strength of 60 ksi of NK Steel Forging.
It is forged steel with carbon steel and alloy steel as NK Classification steel.
Steel materials used in shipbuilding must be approved by the classification organization.
NK classification, LR classification, VL classification (DNV+GL), ABS classification, KR classification, RS classification (Russian Classification).
An inspection certificate is issued for class-certified steel materials, with the third-party certification term EN10204 Type 3.2 inscribed on the inspection certificate and stamped with the classification organization’s emblem and the name of the certifying body.
Because alloy steel is forged steel, there may be test conditions such as normalizing heat treatment after forging or QT and UT, which is a non-destructive test.
Ultrasonic Testing
When an ultrasonic wave has passed through the test body, nondestructive testing is used to check the interior flaws and material quality.
This is a non-destructive test that analyzes faults and materials inside the test body by utilizing the acoustic properties that emerge on the test body when ultrasonic waves are transmitted into it.
Non-destructive testing (NDT: non-destructive testing: non-)
Testing to determine the presence of flaws, their current locations, sizes, shapes, and distribution without destroying materials and products.
This is sometimes used to evaluate metallurgical properties. There is radiographic testing, ultrasonic testing, magnetic particle testing, liquid penetrant testing, and eddy current testing.
A non-destructive test that analyzes the existence, absence, position, size, form, and distribution of defects without destroying materials or products.
It may also be used for strength testing, etc. There are radiographic tests, ultrasonic tests, magnetic particle tests, penetrant tests, eddy current tests, and so on.
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Forging of steel (forged steel) – NK Standard Forging Steel
Steel ingot or semi-finished product that will be wrought and shaped to create a sufficient wrought ratio and then heat-treated to achieve the necessary mechanical qualities.
A steel ingot or steel piece is forged to provide an acceptable annealing forming ratio, and heat treatment is carried out to provide the correct (predetermined) mechanical qualities.
NK Standards (NK Standard Forging Steel)
| Carbon Steel | Alloy Steel |
|---|---|
| KSF45, KSF45W | KSFA60, KSFA60W |
| KSF50, KSF50W | KSFA65, KSFA65W |
| KSF55, KSF55W | KSFA70 |
| KSF60 | KSFA75 |
| KSF65 | KSFA80 |
| KSF70 | KSFA85 |
| KSFA90 | |
| KSFA95 | |
| KSFA100 | |
| KSFA105 |
Steelmax is founded on a comprehensive understanding of steel at the laboratory level.
Carbon steel, stainless steel, functional, Ni-alloy, Cu-, Al-, Co-, Ti-, Mg-, Metal, Forging
Sections, Plate SMLS, H-Beam, Round, Angle, Channel, Rail, Crane Rail, Flat, I-Beam, Pipe & Tube
ASTM, ASME, AISI, API, SAE, AMS, KS, JIS, CSA, DIN-EN, NORSOK, DNV, ABS, GL, LR, KR, NK, RS are some of the standards.
National standards, international organization standards, and international association standards, as well as Mill Maker Standards are offered.
Citius, Altius, Fortius, as in the Olympics, when quicker, higher, and stronger are required
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