Macc Models

Suppliers of model engineering materials and steam fittings.

You are here: Home / Materials / Metals / 41mm outside diameter, 14mm Inside diameter LG2, SAE660 Bronze hollow bar
1-outside-diameter-1-2-inside-diameter-lg2-gunmetal-phos-bronze-round-12-long-sae-660

£5.04 – £100.16

SKU: 1lg212hollow12inch-1-1 Categories: , , ,

Bronze Alloy Typical Applications

  • General purpose bushes & bearings
  • Bearings for lifting tackle
  • Automotive fittings
  • Fuel & water pump bushings
  • Valve & slide seating rings
  • Hydraulics
  • Fittings
  • Thrust washers

Product Description

SigmaBronze 7 is a leaded continuously cast copper based alloy that is suitable for a variety of applications that are under medium loads whilst using adequate lubrication. This alloy offers good sliding and dry running properties and is not subject to dezincification and has a reasonable resistance to brine making it suitable for pump and valve components. SigmaBronze 7 can be used as an alternative to SAE660 in many applications but has the advantage of being available in metric sizes.

Corrosion resistance

Reasonable corrosion resistance

Related material specifications

• SAE660 • BS1400 LB4

Key features

• Excellent machining properties
• Used in bushes and bearings under medium loads
• Higher running speeds
• Good wear resistance
• Excellent anti-friction qualities
• A versatile bronze that can be used in many applications

 

Weldability

Not recommended but SigmaBronze 7 is soft-solderable and to some extent also brazable.

Machinability

Excellent machinability

Chemical Composition (weight %)

Cu

Al

Fe

Ni

P

Pb

Si

Sn

Zn

S

Sb

min

81.00

5.00

5.40

2.00

max

85.00

0.01

0.20

2.00

0.10

8.00

0.01

8.00

5.00

0.10

0.30

Mechanical Properties (actual properties according to specification chosen)

Hardness Brinell
Tensile Strength (N/mm2) Yield Point (N/mm2) Elongation at break (%)

min. 70 min. 260 min. 120 min. 12
Weight 1.31 kg
Dimensions 12 × 1 × 1 in
Please select length

25mm, 50mm, 75mm, 100mm, 125mm, 150mm, 200mm, 250mm, 300mm, 350mm, 400mm, 450mm, 500mm

Delivery



Our minimum postage charge for UK orders is £2.60.

We do not specify delivery dates or guarantee next day delivery, but if you contact us, we will can let you know if you order will be sent same day or provide a dispatch date. 90% of our orders are sent same day.

ALL parcels that have been charged less than £8.99 will be sent VIA Royal. All orders charged £8.99 will be sent via UKMAIL or other courier services due to their weight or size

International orders will be sent via Royal Mail, DHL, UPS, DPD or FedEx. We are NOT responsible for any charges the receiver may get charged before delivery, for example Customs and Revenue charges that may be owed on the parcel before delivery.

Any orders with a delivery address which is classed as highlands or islands will be subject to extra charges if sent via courier.

Addresses classed as islands and highlands are the discretion of the carrier, and are entirely out of our control.

If such charges will be requested, you will be emailed before hand, and you can cancel your order anytime before it is dispatched.


If you have any queries about your order, please email us hello@maccmodels.co.uk

Returns


Returns are accepted 14 days after purchase. We will replace damaged or faulty items. Items that have been order by mistake or no longer wanted will only be refunded for the value of the product. Postage will not be refunded. ALL items must be returned within 14 days.

Urgent Orders



If you require you order urgently, please email me before or after to make us aware of this so we can do everything we can to make sure your order is sent as soon as possible

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