Жесткий шланг из стали Cold Drawn Army Green Seamless Steel Pipe

из углеродистой сталиDINевропейская норма

Product Description
Product Name: Cold Drawn Army Green Seamless Steel Pipe
Standard: EN10305-4 (DIN2445/2), EN10305-1 (DIN2391/C), ASTM A179, GB
Steel grade: E235 (ST35 ST37.4), E355 (ST52 ST52.4)
Size: OD: 4-120mm, WT: 0.5-10mm
Length: fixed 6m or as your request
Surface treatment: chromium-free VI passivation (military green)
Delivery condition: +N (NBK) normalized under controlled atmosphere
Delivery time: 15-45 days, according to the quantity and stock status

Processing services

• Welding
• Punching
• Cutting
• Bending
• Uncoiling

Product Advantages

• No oxide layer on both sides of tube
• High precision, smooth surface
• No crack during flaring and flattening
• Anti-rust on inside and outside
• Cold bending without deformation

Product Video — Work flow chart

• Raw material → Inspection (chemical analysis, physical performance, sizes)
• Cutting → Chamfer grinding (deburring) → Pickling → Saponification
• Cold drawn / cold rolled → Straightening → Cleaning (oil removal)
• Eddy current testing → Anaerobic bright heat treatment (NBK)
• Straightening → Dimensional accuracy and surface testing
• Eddy current testing → Physical performance test → Surface treatment (Chrome VI-free passivated)
• Cleaning and packaging → Stock

Dimension (available OD and wall thickness combinations)
OD 6 : 6*1, 6*1.5, 6*2
OD 8 : 8*1, 8*1.5, 8*2
OD 10 : 10*1, 10*1.5, 10*2
OD 12 : 12*1, 12*1.5, 12*2, 12*2.5
OD 14 : 14*1, 14*1.5, 14*2, 14*2.5, 14*3
OD 15 : 15*1, 15*1.5, 15*2, 15*2.5, 15*3
OD 16 : 16*1, 16*1.5, 16*2, 16*2.5, 16*3
OD 18 : 18*1.5, 18*2, 18*2.5, 18*3, 18*3.5, 18*4
OD 20 : 20*1.5, 20*2, 20*2.5, 20*3, 20*3.5, 20*4
OD 22 : 22*1.5, 22*2, 22*2.5, 22*3, 22*3.5, 22*4
OD 25 : 25*2, 25*2.5, 25*3, 25*3.5, 25*4
OD 28 : 28*2, 28*2.5, 28*3, 28*3.5, 28*4
OD 30 : 30*2, 30*2.5, 30*3, 30*3.5, 30*4, 30*4.5, 30*5
OD 32 : 32*2, 32*2.5, 32*3, 32*3.5, 32*4, 32*4.5, 32*5
OD 34 : 34*2, 34*2.5, 34*3, 34*3.5, 34*4, 34*4.5, 34*5, 34*6
OD 35 : 35*2, 35*2.5, 35*3, 35*3.5, 35*4, 35*4.5, 35*5, 35*6
OD 38 : 38*2, 38*2.5, 38*3, 38*3.5, 38*4, 38*4.5, 38*5, 38*6
OD 40 : 40*2.5, 40*3, 40*3.5, 40*4, 40*4.5, 40*5, 40*6
OD 42 : 42*2.5, 42*3, 42*3.5, 42*4, 42*4.5, 42*5, 42*6
OD 45 : 45*2.5, 45*3, 45*3.5, 45*4, 45*4.5, 45*5, 45*6
OD 46 : 46*2.5, 46*3, 46*3.5, 46*4, 46*4.5, 46*5, 46*6
OD 48 : 48*2.5, 48*3, 48*3.5, 48*4, 48*4.5, 48*5, 48*6
OD 50 : 50*2.5, 50*3, 50*3.5, 50*4, 50*4.5, 50*5, 50*6
OD 54 : 54*3, 54*3.5, 54*4, 54*4.5, 54*5, 54*6
OD 60 : 60*3, 60*3.5, 60*4, 60*4.5, 60*5, 60*6, 60*8

Chemical Composition (typical limits)
E215 (No. 1.0212) : C max 0.10, Si max 0.05, Mn max 0.7, P max 0.025, S max 0.015, Total 0.025
E235 (No. 1.0308) : C max 0.17, Si max 0.35, Mn max 1.2, P max 0.025, S max 0.015
E355 (No. 1.0580) : C max 0.22, Si max 0.55, Mn max 1.6, P max 0.025, S max 0.015

Tolerance (outer diameter / wall thickness)
OD 4mm-20mm : Allowable ±0.10mm (GB/T3639), DIN2391 ±0.08mm; Special tolerance OD ±0.05mm, WT ±0.05mm
OD 20mm-30mm : Allowable ±0.10mm, DIN2391 ±0.08mm; Special tolerance OD ±0.08mm, WT ±0.08mm
OD 31mm-40mm : Allowable ±0.15mm, DIN2391 ±0.15mm; Special tolerance OD ±0.10mm, WT ±0.08mm
OD 41mm-60mm : Allowable ±0.20mm, DIN2391 ±0.20mm; Special tolerance OD ±0.15mm, WT ±0.15mm
OD 61mm-80mm : Allowable ±0.30mm, DIN2391 ±0.30mm; Special tolerance OD ±0.20mm, WT ±0.20mm
OD 81mm-120mm : Allowable ±0.45mm, DIN2391 ±0.45mm; Special tolerance OD ±0.30mm, WT ±0.30mm

Mechanical Properties (minimum / ranges)
E215 (No. 1.0212) : Yield strength ReH min 215 MPa; Tensile strength 290–430 MPa; Elongation A min 30%
E235 (No. 1.0308) : Yield strength ReH min 235 MPa; Tensile strength 340–480 MPa; Elongation A min 25%
E355 (No. 1.0580) : Yield strength ReH min 355 MPa; Tensile strength 490–630 MPa; Elongation A min 22%

Caractéristiques / spécifications techniques

• Nom commercial : Cold Drawn Army Green Seamless Steel Pipe
• Normes principales : EN10305-4, EN10305-1, ASTM A179, GB
• Grades acier : E215, E235, E355
• Plage de diamètres extérieurs : 4–120 mm
• Plage d'épaisseurs : 0.5–10 mm (sélection selon OD)
• Longueur standard : 6 m (ou sur demande)
• Traitement de surface : Passivation sans chrome VI (vert militaire)
• Condition de livraison : +N (NBK) normalisé sous atmosphère contrôlée
• Services disponibles : soudage, poinçonnage, découpe, pliage, déroulage
• Contrôles et essais : inspection chimique et performances physiques, essai par courant de Foucault, tests de performance physique, essais dimensionnels et de surface
• Avantages : haute précision de surface, absence d'oxyde, résistance à la corrosion, aptitude au pliage à froid sans fissuration