China Manufacturer 304/304L Round Stainless Steel Pipe Inox Tube
Outer Diameter 6mm--323.85mm
Thickness 0.4mm - 6.0mm Length 6m or as customers' request
Tolerance a) Outer Diameter: +/- 0.2mm b) Thickness: +/- 0.02mm c) Length: +/- 5mm
Surface 180G, 320G, 400G Satin / Hairline 00G, 500G, 600G Mirror finish
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 | |
NI | 0.8-1.0 | 4.0-6.0 | 8-10.5 | 10.0-14.0 |
| |
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 |
ChemChemical Tableical Table | |||||||
Material Grade | C | Si | Mn | P | S | Cr | Ni |
STS 201 | ≤0.15 | ≤0.75 | 9.5-12.5 | ≤0.045 | ≤0.03 | 13-16 | 0.8-1.5 |
STS 304L | ≤0.035 | ≤2.0 | ≤0.045 | ≤0.03 | ≤1.00 | 8.0~12.0 | 18.0~20.0 |
STS 304 | ≤0.08 | ≤0.75 | ≤2.0 | ≤0.045 | ≤0.03 | 18-19 | ##### |
STS 316L | ≤0.08 | ≤1.00 | ≤2.0 | ≤0.035 | ≤0.03 | 10~14 | 16.0-18.5 |
STS 430 | ≤0.12 | ≤0.75 | ≤2.0 | ≤0.04 | ≤0.03 | 16-18 | ≤0.6 |
STS 304D | ≤0.100 | ≤1.00 | 5.00-8.00 | ≤0.045 | ≤0.015 | 18.12-20.5 | 2.00-4.5 |
STS 301 | ≤0.0800 | ≤0.3100 | ≤4.2000 | ≤0.0500 | ≤0.0037 | ≤15 | ≤5 |
STS 409L | ≤0.0800 | ≤0.4 | ≤0.25 | ≤0.02 | ≤0.03 | ≤11 | ≤0.08 |
Ningbo Yaoyi Stainless Steel Co. Ltd. was founded in 1996. Yaoyi covers an area of 50 acres, and near the Ningbo airport. Over the years, the company mainly produce and sell different kinds of stainless steel coils ,tubes and sheets. It also independently developed one kind of high tensile non-magnetic stainless steel-Y1 and one kind of hard magnetic stainless steel-Y6. Also, other products like SUS 201, 202, 301, 301Ni7, 304 and 316 and so on.
Yaoyi keeps the industry-leading quality for years. Because it had technological improvement on cold rolling mill and the heat treating process. Yaoyi is good at producing high hardness and high-tensile coils. Also, we specialize in customized material for different clients.
Our strength is the relationships with our customers, suppliers, and employees. Moreover, the quality management system (REGISTERED TO ISO 9001:2008) ensures our quality and the service.
Packaging and Transportation