Stahlrohr Cold Drawn Army Green Seamless Steel Pipe

KohlenstoffstahlDINeuropäische Norm

Product Description
Product Name: Cold Drawn Army Green Seamless Steel Pipe
Standard: EN10305-4 (DIN2445/2), EN10305-1 (DIN2391/C), ASTM A179
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 availability
Processing services: welding, punching, cutting, bending, uncoiling
Standard: GB

Product Advantages

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

Product Video / Workflow
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
OD 6 mm: thicknesses: 6*1, 6*1.5, 6*2
OD 8 mm: thicknesses: 8*1, 8*1.5, 8*2
OD 10 mm: thicknesses: 10*1, 10*1.5, 10*2
OD 12 mm: thicknesses: 12*1, 12*1.5, 12*2, 12*2.5
OD 14 mm: thicknesses: 14*1, 14*1.5, 14*2, 14*2.5, 14*3
OD 15 mm: thicknesses: 15*1, 15*1.5, 15*2, 15*2.5, 15*3
OD 16 mm: thicknesses: 16*1, 16*1.5, 16*2, 16*2.5, 16*3
OD 18 mm: thicknesses: 18*1.5, 18*2, 18*2.5, 18*3, 18*3.5, 18*4
OD 20 mm: thicknesses: 20*1.5, 20*2, 20*2.5, 20*3, 20*3.5, 20*4
OD 22 mm: thicknesses: 22*1.5, 22*2, 22*2.5, 22*3, 22*3.5, 22*4
OD 25 mm: thicknesses: 25*2, 25*2.5, 25*3, 25*3.5, 25*4
OD 28 mm: thicknesses: 28*2, 28*2.5, 28*3, 28*3.5, 28*4
OD 30 mm: thicknesses: 30*2, 30*2.5, 30*3, 30*3.5, 30*4, 30*4.5, 30*5
OD 32 mm: thicknesses: 32*2, 32*2.5, 32*3, 32*3.5, 32*4, 32*4.5, 32*5
OD 34 mm: thicknesses: 34*2, 34*2.5, 34*3, 34*3.5, 34*4, 34*4.5, 34*5, 34*6
OD 35 mm: thicknesses: 35*2, 35*2.5, 35*3, 35*3.5, 35*4, 35*4.5, 35*5, 35*6
OD 38 mm: thicknesses: 38*2, 38*2.5, 38*3, 38*3.5, 38*4, 38*4.5, 38*5, 38*6
OD 40 mm: thicknesses: 40*2.5, 40*3, 40*3.5, 40*4, 40*4.5, 40*5, 40*6
OD 42 mm: thicknesses: 42*2.5, 42*3, 42*3.5, 42*4, 42*4.5, 42*5, 42*6
OD 45 mm: thicknesses: 45*2.5, 45*3, 45*3.5, 45*4, 45*4.5, 45*5, 45*6
OD 46 mm: thicknesses: 46*2.5, 46*3, 46*3.5, 46*4, 46*4.5, 46*5, 46*6
OD 48 mm: thicknesses: 48*2.5, 48*3, 48*3.5, 48*4, 48*4.5, 48*5, 48*6
OD 50 mm: thicknesses: 50*2.5, 50*3, 50*3.5, 50*4, 50*4.5, 50*5, 50*6
OD 54 mm: thicknesses: 54*3, 54*3.5, 54*4, 54*4.5, 54*5, 54*6
OD 60 mm: thicknesses: 60*3, 60*3.5, 60*4, 60*4.5, 60*5, 60*6, 60*8

Chemical Composition

• E215 (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 (1.0308): C max 0.17; Si max 0.35; Mn max 1.2; P max 0.025; S max 0.015
• E355 (1.0580): C max 0.22; Si max 0.55; Mn max 1.6; P max 0.025; S max 0.015

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

Mechanical Properties

• E215 (1.0212): Yield (ReH) min 215 MPa; Tensile strength 290–430 MPa; Elongation A min 30%
• E235 (1.0308): Yield min 235 MPa; Tensile strength 340–480 MPa; Elongation A min 25%
• E355 (1.0580): Yield min 355 MPa; Tensile strength 490–630 MPa; Elongation A min 22%

Caractéristiques / spécifications techniques

• Product name: Cold Drawn Army Green Seamless Steel Pipe
• Standards: EN10305-4, EN10305-1, ASTM A179, GB
• Available steel grades: E215, E235, E355
• Outer diameter range: 4–120 mm (examples listed 6–60 mm)
• Wall thickness range: 0.5–10 mm (various specific thicknesses per OD listed)
• Length: fixed 6 m or customized
• Surface treatment: chromium-free VI passivation (military green)
• Delivery condition: +N (NBK) normalized under controlled atmosphere
• Delivery time: typically 15–45 days depending on quantity and stock
• Processing services offered: welding, punching, cutting, bending, uncoiling
• Key properties: no oxide layer, high precision smooth surface, no cracking during forming, anti-rust inside/outside, cold bending without deformation
• Included technical tables: dimension options, chemical composition, tolerances, mechanical properties