Product Details

Product Description

Bundy tube bundie for heating elements

The type of surface coating ,condition and code steel tube

TYPE	CONDITION	CODE
PLAIN	Without coating on the inner and outer surface	SL
Cu coated	Only outer surface of the tube with Cu coated	Cu
Zn coated^a	Only outer surface of the tube with Zn coated	Zn
Both sides Cu ccoated^b	Outer and inner surface of the tube with Cu coated	Cu/Cu
Outer Zn coated, inner Cu coated^c	outer surface of the tube with Zn coated; inner surface of the tube with Cu coated	Zn/Cu
a. by electric coating; chemical coating; hot dipped galvanized b. use material steel strips with both sides copper coated.The coating condition of the welding beam to be negotiate by user c. use material steel strips with both sides copper coated.

Main size OD and thickness

OD /mm	Thickness/mm
OD /mm	0.50	0.60	0.65	0.70	0.80	0.90	1.00	1.20
3.18	√	—	—	—	—	—	—	—
4.00	√	√	√	√	—	—	—	—
4.76	√	√	√	√	√	—	—	—
5.00	√	√	√	√	√	—	—	—
6.00	√	√	√	√	√	√	√	√
6.35	√	√	√	√	√	√	√	√
7.94	—	√	√	√	√	√	√	√
8.00	—	√	√	√	√	√	√	√
9.53	—	√	√	√	√	√	√	√
10.00	—	√	√	√	√	√	√	√
12.00	—	√	√	√	√	√	√	√
12.70	—	√	√	√	√	√	√	√

The tolerance of OD of the steel tube

OD	Usual accuracy(PA)	Senior accuracy(PC)
<4.76	±0.08mm	±0.05mm
4.76 ~ 8.00	±0.12mm	±0.07mm
>8.00 ~ 12.00	±0.16mm	±0.10mm
>12.00	±0.20mm	±0.12mm

Mechanical property

Mechanical property

type

Tensile strength

R_m/Mpa

Yield strength

R_eL/Mpa

elongation

A/%

Soft tube(MA)

280-320

≥170

≥35

Hard tube(MB)

320-350

≥200

≥25

Chemical composition

element

cold rolled

low carbon steel

≤0.08

≤0.03

≤0.30

≤0.03

Cold rolled exceed

Low carbon steel

≤0.008

≤0.03

≤0.25

≤0.02

≤0.03

Application

single wall welded steel tube mainly used on refrigeration condenser and evaporator in refrigerator, chiller, refrigetation display case; and some auto pipe parts ,such as:brake tube, oil injection tube line and link pipe parts. It would be in coils and straight tube.

Workshop plant

Testing / Inspection

Packaging & Shipping

Our Services

If clients have special requirement on the material, tube size, tube type, mechanical property,length, packing conditions, Pls contact us free. if we can do,we will do it as customizing.

FAQ

l Are you a trading company and manufacturer?

Yes, we have have plant and trading company, we can deal business both, but do it as condition.

l How can I get your prices?

Pls show us your target tube size (OD ,wall), material (steel grade),coating types( coating types on OD/ID

both), in coil or straight length tube(if length, how long per pcs?), quantity, packing requirement ,application

and specialy requirement. Then,we can send you an exact quotation within 24 hours.

l What's your MOQ?

For common coating type and common size, MOQ is 3000kg ; for specially coatinf type or specialy size

need confirmed.

l How can I get some samples to do quality approved?

After quotation confirmed, we can send some samples for testing, severl pieces tube are free,but big

quantity maybe charged and freight should be bear by client.

l What about the leading time for mass order producing?

Usually, 15-25 days for material preparing and producing after order confirmed, and 10 days for shipment

booking and confirmed.35 days min for common size and type, special size and type need confirm.

l Could the tube be customized for us?

Sure, we are professional supplier.when we confirmed and accept all your target requirement,we can

customize the tube as your target.