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Modello: JIS G3445
marchio: Torich
Standard: GB, ASTM, JIS, DIN, API
Materiale: 10MoWVNb, STPA22-STPA26, MO, 10Cr9Mo1VNb, STBA20-STBA26, Lega Mn-V, ST35-ST52, API J55-API P110, A53-A369, STPG42, Q195-Q345, 15NiCuMoNb5, 10 # -45 #, Lega CrNi, STB35-STB42
Forma Della Sezione: Il giro
Luogo D'origine: Cina
Applicazione: Tubo della caldaia, Tubo del fluido, Tubo di perforazione, Tubo del gas, Tubo idraulico, TUBO OLIO, Tubo di fertilizzante chimico, Tubo della struttura
Processo Produttivo: Trafilato a freddo
Certificazione: Bsi, ce, UL, API
Trattamento Della Superficie: Rivestito in rame, Zincato
Tubo Speciale: API Pipe, Tubo EMT, Tubo a parete spessa
Sia Lega: Non legato
Tolleranza: ± 10%
Categoria: Tubo in acciaio senza saldatura
Servizio Di Elaborazione: Flessione, Saldatura, Decoiling, Punzonatura, Taglio
Section Shape: Round
Usage: Construction & Automotive
Material: Carbon Steel
Technique: Cold Drawn
Surface Treatment: Oiled
Certification: Ul,Ce
Application: Furniture, Bicycles, Cars
Type: Seamless
Pacchetto: I tubi in acciaio saranno confezionati in borse intrecciate per mare
produttività: 50000 tons per year
Trasporti: Ocean,Land,Air
Luogo di origine: Cina
Supportare: 20tons per month
Certificati : ISO,CE
Porta: Shanghai,Ningbo
Tipo di pagamento: L/C,T/T,D/P,Paypal
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT
Sistema di scarico automatico STKM11A Welded Acciaio tubo
1.Details:
application |
Automobile and motorcycle Shock Absorber Pipe Hydraulic-cylinder Pipe Mechanical steel pipes for auto and motor parts Gas Spring pipe motor casing pipe |
size |
length--2~12m WT--2~5mm OD--10-20mm |
material | STKM11A |
Production process | ordinary high-frequency welded pipe |
Advantages | small diameter and thick wall |
Surface Quality | The internal and external surfaces of the steel tube are not allowed to have cracks, scabs, folds, delaminations, laps, and burns. Allows for scribes, scratches, misalignment of welds, burns, oxide scales, and external burr removal traces that are not more than a negative wall thickness deviation |
Inspection items |
chemical composition Tensile test Ultrasonic examination Eddy current flaw detection Bending test Flattening test |
2.P Tolleranza ermissibile del diametro esterno e dello spessore della parete (mm)
Type of steel Tube | Dimension of steel tube | Permissible tolerance | ||
Average class | High class | |||
Hot-rolled (extruded and expanded) tube |
Outer diameter D | All |
±1% (min.+/-0.50) |
- |
Wall thickness | All |
+15%/-12.5% (min.+4.5/-4.0) |
- | |
Cold-drawn (cold-rolled) tube | Outer diameter D | 6~10 | ±0.2 | ±0.15 |
>10~30 | ±0.40 | ±0.20 | ||
>30~50 | ±0.45 | ±0.30 | ||
>50 | ±1% | ±0.8% | ||
Wall thickness | <1 | ±0.15 | ±0.12 | |
>1~3 |
+15% -10% |
+12.5% -10% |
||
>3 |
+12.5% -10% |
±10% | ||
Note: For hot-expanded tubes with outer diameter>35mm,the permissible tolerance of wall thickness is±18%. |
3. Proprietà meccaniche longitudinali dei tubi in acciaio
NO. | Steel Grade | Tensile Strength(Mpa) | Yield point(Mpa) | Elongation after breaking(%) | |
s<16 | s>16 | ||||
Not less than | |||||
1 | 10 | 335~475 | 205 | 195 | 24 |
2 | 20 | 410~550 | 245 | 235 | 20 |
3 | Q295 | 430~610 | 295 | 285 | 22 |
4 | Q345 | 490~665 | 325 | 315 | 21 |
4.p deviazioni ermissi dell'analisi del prodotto dai limiti specificati:
Element | Limiting values for cast analysis | Permissible deviatioon of the product analysis in % by mass |
C | ≤0.22 | +0.02 |
Si | ≤0.55 | +0.05 |
Mn | ≤1.60 | +0.10 |
P | ≤0.025 | +0.005 |
S | ≤0.015 | +0.003 |
Al | ≥0.025 | -0.005 |
5. Showing:
Elenco prodotti : Tubo d'acciaio automobilistico
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