| Model: | din2391,bs6323 |
|---|---|
| Brand: | FUSHUN METAL |
| Origin: | Made In China |
| Category: | Metallurgy , Mining & Energy / Metallurgy & Mining / Piping Tubing |
| Label: | high precision tube , cold rolled tube , seamless tube |
| Price: |
US $600
/ TON
|
| Min. Order: | 2 TON |
| Live Chat: | Last Online:26 Sep, 2016 |
Applications:
High Precision Cold Rolled Seamless Steel Tube is used in automotive industry, and in the occasion where the high accuracy, brightness, cleanness of the tube are required.
Main Features：
1. Inner and outer walls of tube have high accuracy.
2. Excellent brightness.
3. No oxidization after heat treatment
4. High cleanness inside tube.
Quality Standards:
DIN 2391 Seamless Precison Steel Tubes
BS6323 Specification for Seamless and Welded Steel Tubes for Automobile, Mechanical and General Engineering Purposes
ASTM A519 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
Steel Grades:
DIN Standard: St35, St52
BS Standard: CFS 4, CFS 5, CFS 10
ASTM Standard: 1020, 1045, 4130
Chemical Composition(%):
| Grade | C | Si | Mn | P | S | Cr | Mo |
|---|---|---|---|---|---|---|---|
| St 35 (DIN1.0308) | 0.17 max | 0.35 max | 0.40 min | 0.025 max | 0.025 max | / | / |
| St 52 (DIN1.0580) | 0.22 max | 0.55 max | 1.60 max | 0.025 max | 0.025 max | / | / |
| CFS 4 | 0.25 max | 0.35 max | 1.20 max | 0.050 max | 0.050 max | / | / |
| CFS 5 | 0.23 max | 0.50 max | 1.50 max | 0.050 max | 0.050 max | / | / |
| CFS 10 | 0.26 max | 0.35 max | 0.80 max | 0.050 max | 0.050 max | 0.80-1.20 | 0.15-0.30 |
| 1020 | 0.18-0.25 | / | 0.30-0.60 | 0.040 max | 0.050 max | / | / |
| 1045 | 0.43-0.50 | / | 0.60-0.90 | 0.040 max | 0.050 max | / | / |
| 4130 | 0.28-0.33 | 0.15-0.35 | 0.40-0.60 | 0.040 max | 0.040 max | 0.80-1.10 | 0.15-0.25 |
Size Range:
Outer Diameter: 5mm-220mm
Wall Thickness: 0.5mm-25mm
Delivery Conditions:
+C (BK) Hard. No final treatment after final cold rolling.
+LC (BKW) Soft. Final heat treatment is followed by a suitable drawing pass (limited reduction of area).
+SR (BKS) Stress Relieved. After final cold rolling, the tubes are stress relieved in a controlled atmosphere.
+A (GBK) Annealed. After final cold rolling, the tubes are annealed in a controlled atmosphere.
+N (NBK) Normalized. After final cold rolling, the tubes are normalized in a controlled atmosphere.
Mechanical Properties( T=20°C if not differently stated ):
| Grades | Delivery Conditions | Tensile Strength Rm (Mpa) | Yield Strength R2 (Mpa) | Elongation in the longitudinal direction Al (%) |
|---|---|---|---|---|
| St 35 | +C (BK) | 480 min | / | 6 min |
| St 35 | +LC (BKW) | 420 min | / | 10 min |
| St 35 | +SR (BKS) | 420 min | 315 min | 14 min |
| St 35 | +A (GBK) | 315 min | / | 25 min |
| St 35 | +N (NBK) | 340-470 | 235 min | 25 min |
| St 52 | +C (BK) | 640 min | / | 4 min |
| St 52 | +LC (BKW) | 580 min | / | 7 min |
| St 52 | +SR (BKS) | 580 min | 420 min | 10 min |
| St 52 | +A (GBK) | 490 min | / | 22 min |
| St 52 | +N (NBK) | 490-630 | 355 min | 22 min |
| E235 | +C (BK) | 390 min | / | 7 min |
| E235 | +A (GBK) | 315 min | / | 25 min |
| E235 | +N (NBK) | 340-480 | 235 min | 25 min |
| E355 | +C (BK) | 540 min | / | 5 min |
| E355 | +A (GBK) | 450 min | / | 22 min |
| E355 | +N (NBK) | 3490-630 | 355 min | 22 min |
Package:
1. Bundle Packing.
2. Plain end or vanished as per customer’s request.
3. Wrapped in waterproof paper.
4. Sackcloth with several steel strips.
5. Pack in heavy tri-wall boxes.
Mill Test Certificate:
MTC is issued in accordance with EN 10204.
