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Modelo: JIS G3445
marca: Torich
Padrão: GB, ASTM, JIS, DIN, API
Material: 10MoWVNb, STPA22-STPA26, MO, 10Cr9Mo1VNb, STBA20-STBA26, Liga Mn-V, ST35-ST52, API J55-API P110, A53-A369, STPG42, Q195-Q345, 15NiCuMoNb5, 10 # -45 #, Liga CrNi, STB35-STB42, Carbon Steel
Forma De Seção: Redondo
Lugar De Origem: China
Inscrição: Tubo de Caldeira, Tubo de fluido, Tubo de perfuração, Tubo de gás, Tubo Hidráulico, TUBO DE ÓLEO, Tubo de fertilizante químico, Tubulação de Estrutura
Processo De Produção: Desenho frio
Certificação: Bsi, ce, UL, API
Tratamento Da Superfície: Coberto De Cobre, Galvanizado
Tubo Especial: Pipe API, Tubo EMT, Tubo de parede grossa
Seja Liga: Não Liga
Tolerância: ± 10%
Categoria: Tubo de aço sem costura
Serviço De Processamento: Dobra, Soldagem, Decoiling, Socos, Corte
Section Shape: Round
Usage: Construction & Automotive
Technique: Cold Drawn
Surface Treatment: Oiled
Certification: Ul,Ce
Application: Furniture, Bicycles, Cars
Type: Seamless
Pacote: Os tubos de aço serão embalados em hexagonal em sacos de tecido por mar
produtividade: 50000 tons per year
transporte: Ocean,Land,Air
Lugar de origem: China
Apoio sobre: 20tons per month
Certificados : ISO,CE
porta: Shanghai,Ningbo
Tipo de pagamento: L/C,T/T,D/P,Paypal
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT
Sistema de escape automático STKM11A TUBO DE AÇO Soldado
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 tolerância ermissível do diâmetro externo e espessura da parede (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. Propriedades mecânicas longitudinais de tubos de aço
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 desvios ermissíveis da análise do produto a partir dos limites 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.Sando:
Grupo de Produto : Tubo de aço automotivo
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