- SITEMAP
- CONTACT US
- 8618267732328
News
Credibility ,the lifeblood of enterprise!
- Fittings
- Butt Welding Fittings
- Forged Fittings
- 180 Degree Elbows
- 90 Degree Elbows
- 60 Degree Elbows
- 45 Degree Elbows
- 30 Degree Elbows
- Equal Tee
- Reducing Tee
- Concentric Reducer
- Eccentric Reducer
- Lap Joint Stub End
- Outlets
- Cap
- Bend
- Cross
- Coupling
- Stainless Steel Lateral Tee
- Bellows Expansion Joints
- Flexible Metal Hose
- Non-Standard/Custom Fittings
- Bleed & Flushing Rings
- Types of Flanges
- Anchor Flanges
- Blind Flanges
- Expander Flanges
- High Hub Flanges
- Lap Joint Flanges
- Long Weld Neck Flanges
- Nipoflanges
- Orifice Flanges
- Plate Flanges
- Ring Type Joint Flanges
- Reducing Flanges
- Slip On Flanges
- Socket Weld Flanges
- Spectacle Blind Flanges
- Square Flanges
- Spades & Ring Spacers
- Threaded Flanges
- Welding Neck Flanges
Costs Of Different Metals Used In Mechanical Engineering By yaang.com
The material cost of a mass produced investment casting item may be 80% of the final cost. The material cost of a single complicated machined item may be less than 10% of the final cost. It is not possible to provide cost comparisons between different metals to any level of accuracy. Each metal is varying in price on a day to day basis and different alloys of the same metal can have significantly different costs. A grade 7 titanium alloy costs twice as much as pure titanium (grade 1,2 or 3).
Comparing costs should only be based on final installed costs. eg. for a domestic, industrial piping system a screwed steel system would cost about 40% more than a copper piping system.
Example :
The price of a titanium / titanium alloy products results from a number of factors:
- Alloying grade .some grades e.g with Pd alloying component, can significantly increase the price of the alloy.
- The purity of the grade... the more pure the higher the cost
- The test and inspection requirements;
- The procured quantities. The more ordered the lower the specific cost
- The geometry ..rolling or forging affects prices per volume or weight
- Demand ..e.g High defence demand for aerospace industry can result in higher metal prices
- Local economy.. Metal availability
In year 2000 the price of titanium was about 13 000 to 43 000/tonne..
In 2002 the price of raw titanium was about to 8960/tonne.
In 2005 to-date the price of titanium has varied between 6000 and 9000 /tonne
Ref 2010 ..I have enclosed a chart from the metalprices webpage to illustrate to range of titanium ingot pricing over a 12 month period
The table below can only really be used to give broad relative initial material costs. The figures are based on a reference source originating about 2002
| Material | Density | Cost/tonne | Relative | Cost /m3 | Relative |
| kg/m3 | /tonne | /tonne | /m3 | /m3 | |
| Carbon Steel | 7820 | 550 | 1 | 4301 | 1,0 |
| Alloy Steels | 7820 | 830 | 1,51 | 6490,6 | 1,5 |
| Cast Iron | 7225 | 830 | 1,51 | 5996,75 | 1,4 |
| Stainless Steel | 7780 | 4450 | 8,1 | 34 621 | 8,0 |
| Aluminium alloys | 2700 | 2220 | 4,0 | 5994 | 1,4 |
| Copper Alloys | 8900 | 5550 | 10,1 | 49 395 | 11,5 |
| Zinc alloys | 7100 | 2220 | 4,0 | 15 762 | 3,7 |
| Magnesium alloys | 1800 | 4000 | 7,3 | 7200 | 1,8 |
| Titanium alloys | 4500 | 17 000 | 30,9 | 76 500 | 17,4 |
| Nickel alloys | 8900 | 18 000 | 32,7 | 160 200 | 36,8 |
Current Metal Prices.. November 2010
I have tried to obtain some current (Nov 2010) metal prices from various internet sources and I list them below..These sometimes differ considerably from the table above
| Material | Cost/tonne | Relative Cost (weight) |
Relative Cost (volume) |
| /tonne | |||
| Steel (Billet) LME-Nov-2010 | 321 | 1 | 1 |
| Steel (Hot Rolled Plate)-MEPS-July-2010 | 505 | 1,6 | 1,6 |
| 304 Steel (Hot Rolled Plate)-MEPS-July-2010 | 2 536 | 7,9 | 7,9 |
| 316 Steel (Hot Rolled Plate)-MEPS-July-2010 | 3 535 | 11 | 11 |
| Tin- LME-Nov-2010 | 15 458 | 48 | 45 |
| Aluminium Alloy - LME-Nov-2010 | 1 407 | 4,.4 | 1,5 |
| Aluminium - LME-Nov-2010 | 1 425 | 4,4 | 1,5 |
| Copper - LME -Nov-2010 | 5 279 | 16,4 | 18,7 |
| Zinc - LME -Nov-2010 | 1 412 | 4,4 | 4,0 |
| Nickel - LME -Nov-2010 | 14 398 | 44 | 51 |
| Lead - LME-Nov-2010 | 1 414 | 4,4 | 6,4 |
| Titanium (ingot 6AL-4V) steelonthenet (11$/lb) | 15 700 | 49 | 28 |
Prices in dollars for 25mm round bar x 300mm long (0,00015m3 ) ...November 2010 (Onlinemetals (USA)
| Metal | Price $ |
1000/tonne |
1000/m3 |
Relative cost (weight) |
Relative cost (volume) |
| Steel HR (A56) | 6 | 3,2 | 24,7 | 1 | 1 |
| Steel CD (12L40) | 7,4 | 3,9 | 30,5 | 1.23 | 1.23 |
| Alloy Steel (4130) | 9,99 | 5,3 | 41,2 | 1.66 | 1.66 |
| St.Stl (304L) | 15,34 | 8,1 | 63,2 | 2.6 | 2.56 |
| St.Stl (316L) | 20,61 | 10,9 | 84,9 | 3.4 | 3.44 |
| Aluminium (2011-T3) | 8,58 | 13,1 | 35,4 | 4.2 | 1.43 |
| Copper (C110) | 37,91 | 17,5 | 156,2 | 5.6 | 6.32 |
| Brass (C360) | 25,3 | 11,7 | 104,3 | 3.7 | 4.22 |
| Bronze | 42,09 | 19,5 | 173,5 | 6.2 | 7.0 |
| Titanium (6AL-4VG5) | 107 | 98 | 441 | 31 | 17.8 |
Comparison of raw bulk material costs above with actual metal stock prices
Looking at the cost per tonne of HR steel in the form of a 1" dia round bar 1 foot long at 3200 against the LME price for the raw material in bulk for at 321/tonne illustrates the massive diiference in the price of raw materials to the actual price of materials as supplied for initial machining processes in small quantities.
Source: Yaang Pipe Industry Co., Limited (www.yaang.com)
Tel No：+86-18267732328 / Email:[email protected]
Address：Longwan District, Wenzhou, Zhejiang Province, China.
Copyright Notice © www.yaang.com Yaang Pipe Industry Co., Limited All rights reserved.
Yaang Pipe Industry Co., Ltd. is an international supplier of piping solutions for flange, butt welding fittings, socket welding fittings and threaded fittings. Our products are widely used in different industrial fields, including oil and gas, chemical industry, petrochemical industry, power plant, pulp and paper industry, environmental and water conservancy engineering, engineering projects, etc.
