ASTM A270 OD0.4mm Small Diameter Stainless Steel Tubing

Basic Information
Place of Origin: zhejiang, China
Brand Name: Torich
Model Number: ASTM A270
Packaging Details: In hexagonal bundles or wooden box
Delivery Time: 30-45days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Detail Information
Product Name: Medical And Small Diameter Tubing Technique: Cold Rolled
Surface Treatment: Polished Section Shape: Round
Model Number: ASTM A270 Material: TP304, TP304L, TP316, TP316L, 2205
Grade: 300 Series Type: Stainless Steel Pipes, Seamless Or Welded
Usage: Medical Equipment Industry Brand: Torich
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ASTM A270 Small Diameter Stainless Steel Tubing


OD0.4mm Small Diameter Stainless Steel Tubing


OD0.4mm small diameter metal tubing

Product Description

Medical And Small Diameter Tubing

ASTM A270, ASTM A554, A249, A269, A312
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
OD: 0.4mm--8.0mm WT: 0.05mm - 0.9mm Length: According to
Customer's Requirement
Common size

0.4*0.11, 0.5*0.1, 0.5*0.15, 0.6*0.1, 0.6*0.125, 0.63*0.15, 0.7*0.1,

0.7*0.15, 0.8*0.1, 0 .8*0.125, 0.8*0.15, 0.9*0.1, 0.9*0.15 etc

Surface Finish
180G, 320G, 400G Satin / Hairline
400G, 500G, 600G or 800G Mirror finish
Test and Inspection
Squash test, extended test, water pressure test, crystal rot test,
heat treatment, NDT
Decoration construction, upholstery, industry instrument




Table 1 Tolerance of OD

Classification D Permissible Tolerance
H All Dimensions ±0.5% or ±0.20 ±0.75% or ±0.30
T <40 ±0.20 ±0.30
40~<65 ±0.30 ±0.40
65~<90 ±0.40 ±0.50
90~<168.3 ±0.80 ±1.00
168.3~<325 ±0.75%D ±1%D
325~<610 ±0.6%D ±1%D
610 ±0.6%D ±0.7%D or ±10



<40 ±0.15 ±0.20
40~<60 ±0.20 ±0.30
60~<100 ±0.30 ±0.40
100~<200 ±0.4%D ±0.5%D
200 ±0.5%D ±0.75%D


Table 2 Tolerance of WT

Nominal WT Permissible Tolerance
0.5 ±0..10
>0.5~1.0 ±0.15
>1.0~2.0 ±0.20
>2.0~<4.0 ±0.30
4.0 ±10%S


1: Medical equipment industry, injection needle tube, puncture needle tube, medical industrial tube.

2: Industrial electric heating tube, industrial oil tube.

3: Temperature sensor tube, sensor tube, barbecue tube, thermometer tube, thermometer tube, instrument tube, thermometer stainless steel tube.

4: Pen making pen, core tube, pen tube.

5: All kinds of electronic micro-tubes, optical fiber accessories, light mixer, small diameter stainless steel capillary.

6: Clock and watch industry, mother-to-child, raw ear pole, watch strap accessories, jewelry punch needle.

7: All kinds of antenna tube, automobile tail antenna tube, tie rod antenna tube, stretch pointer, mobile phone stretch antenna tube, micro-antenna tube, portable computer antenna Stainless steel antenna.

8: Stainless steel pipes for laser engraving equipment.

9: Pipes for fishing utensils, pipes for dropping fishing rods.

10: Pipes for various dietary industries, pipes for transporting materials.


Product Pictures

ASTM A270 OD0.4mm Small Diameter Stainless Steel Tubing 0


ASTM A270 OD0.4mm Small Diameter Stainless Steel Tubing 1



Company Introduction

ASTM A270 OD0.4mm Small Diameter Stainless Steel Tubing 2



1. Incoming Raw Material Inspection

2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking


100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects

Contact Details
Daise Wang

Phone Number : +8618069049202

WhatsApp : +8613736164628