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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