Buy large diameter perforated / hollow cold drawn duplex seamless stainless steel tube
Zheheng steel are specialized in produce all kinds of large diameter stainless steel tube,lollow seamless stainless steel tube,cold draw duplex stainless steel tube ,perforated stainless steel tube,we are strictly according to standard ASTM A249-84b, ASTM A269-90A, ASTM A270, ASTM A312, ASTM A688 etc. Top grade quality such as 201, 202, 304, 304L, 316 and 316L are always available in large stock for promptly delivery. It's thickness range from 1.0 to 6.0 mm depend on diverse applications. The dimensions of circle, square, rectangular tube also can be customized. We offer competitive price and processing with best services.
For the shape of the tube, it contains round tube, square tube and rectangular tube.
Stainless steel round tube/pipe
1. Material: 304, 304L, 316, 316L, etc.
2. Round Size: 6MM-1000MM
3. Wall Thickness: 1.0mm - 6.0mm
4. Type: ERW / WELDED
5. Length: 4 to12 MTR
6. Surface: Picking, Polished, 600G, 400G, 320G, 240G, 180G, etc.
Stainless Steel Square tube/pipe
1. Material: 304, 304L, 316, 316L etc.
2. Square Size: 10x10 ---150x150 MM
3. Wall Thickness: 1.0mm - 6.0mm
4. Type: ERW / WELDED / SEAMLESS
5. Length: 4 to 12 MTR
6. Surface: Picking, Polished, 600G, 400G, 320G, 240G, 180G, etc.
Stainless Steel Rectangular tube/pipe
1. Material: 304, 304L, 316, 316L,etc.
2. Square Size: 10x20 ---100x150 MM
3. Wall Thickness: 1.0mm - 6.0mm
4. Type: ERW / WELDED / SEAMLESS
5. Length: 4 to 12 MTR
6. Surface: Picking, Polished, 600G, 400G, 320G, 240G, 180G, etc.
product description and chemical composition
| Name | Stainless Steel pipe |
| Standard | ASTM A554, A249, A269 and A270, A312 |
| Material Grade | 201 ( Ni 1.2%),
202 (Ni 3.5%~4.5%),
301(Ni 5%)
304 (Ni 8%, Cr 18%),
316 (Ni 10%, Cr 18%),
316L (Ni10%~14%),
430 |
Tolerance | a) Outer Diameter: +/- 0.2mm |
| b) Thickness: +/- 0.02mm |
| c) Length: +/- 5mm |
| Application | Decoration construction, upholstery, industry instrument |
| Test | Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT |
Chemical Composition of Material | Material
Composition | 201 | 202 | 304 | 316 | 430 |
| C | ≤0.15 | ≤0.15 | ≤0.08 | ≤0.08 | ≤0.12 |
| Si | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 |
| Mn | 5.5-7.5 | 7.5-10 | ≤2.00 | ≤2.00 | ≤1.00 |
| P | ≤0.06 | ≤0.06 | ≤0.045 | ≤0.045 | ≤0.040 |
| S | ≤0.03 | ≤0.03 | ≤0.030 | ≤0.030 | ≤0.030 |
| Cr | 16-18 | 17-19 | 18-20 | 16-18 | 16-18 |
| N | 3.5-5.5 | 4-6 | 8-10.5 | 10-14 | |
| Mo | | | | 2.0-3.0 | |
Mechanical Property | Material Item | 201 | 202 | 304 | 316 |
| Tensile Strength | ≥535 | ≥520 | ≥520 | ≥520 |
| Yield Strength | ≥245 | ≥205 | ≥205 | ≥205 |
| Extension | ≥30% | ≥30% | ≥35% | ≥35% |
| Hardness (HV) | <253 | <253 | <200 | <200
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Large Hollow Seamless Stainless Steel Tubing , Cold Drawn Ss Seamless Tube Images
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