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Modelo: JIS G3445
Marca: ENRIQUECER
Estándar: GB, ASTM, JIS, ESTRUENDO, API
Material: 10MoWVNb, STPA22-STPA26, mes, 10Cr9Mo1VNb, STBA20-STBA26, Aleación de Mn-V, ST35-ST52, API J55-API P110, A53-A369, STPG42, Q195-Q345, 15NiCuMoNb5, 10 # -45 #, Aleación CrNi, STB35-STB42, Carbon Steel
Forma De La Sección: Redondo
Lugar De Origen: porcelana
Solicitud: Tubería de caldera, Tubería de fluido, Tubería de perforación, Tubería de gas, Tubería Hidráulica, TUBERÍA DE PETRÓLEO, Tubo de fertilizante químico, Tubo de estructura
Proceso De Producción: Estirado en frío
Certificación: Bsi, ce, UL, API
Tratamiento De Superficies: Recubierto de cobre, Galvanizado
Tubo Especial: Tubería API, Tubería EMT, Tubo de pared gruesa
Ya Sea Aleación: Sin alear
Tolerancia: ± 10%
Categoría: Tubería de acero sin costura
Servicio De Procesamiento: Doblado, Soldadura, Desenrollar, Puñetazos, Corte
Section Shape: Round
Usage: Construction & Automotive
Technique: Cold Drawn
Surface Treatment: Oiled
Certification: Ul,Ce
Application: Furniture, Bicycles, Cars
Type: Seamless
Paquete: Los tubos de acero estarán empacados en hexagonales en bolsas tejidas por mar
productividad: 50000 tons per year
transporte: Ocean,Land,Air
Lugar de origen: Porcelana
Apoyo sobre: 20tons per month
Certificados : ISO,CE
Hafen: Shanghai,Ningbo
Tipo de Pago: L/C,T/T,D/P,Paypal
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT
Sistema de escape automático STKM11A Tubón de acero soldado
1. Determa:
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 Tolerancia emisible del diámetro exterior y el grosor de la pared (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. Propiedades mecánicas longitudinales de los tubos de acero
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 desviaciones emisibles del análisis del producto de los límites especificados:
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. Presentación:
PRODUCTOS POR GRUPO : Tubo de acero automotriz
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