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Alloy steel is steel alloyed with a variety of elements in total amounts of between 1.0% and 50% by weight to improve its mechanical properties. Alloy steels are broken down into two groups: low alloy steels and high alloy steels. The difference between the two is somewhat arbitrary: Smith and Hashemi define the difference at 4.0%, while Degarmo, et al., define it at 8.0 %.[1][2] Most commonly, the phrase "alloy steel" refers to "low alloy" steels.

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Home » Stainless Steel » Product introduction

DIN 1.4449 Stainless Steel

  • Numbers: 2011110718
  • Model: 1.4449
  • Producers: China
  • Update time: 2011.11.07
  • Browse:

Product Description:

DIN 1.4449 Stainless Steel

Category  steel
Class  Stainless steel
Type  Austenitic standard
Common Names  Chromium-Nickel steel
Designations  Germany: DIN 1.4449
Italy: UNI X 5 CrNiMo 18 15
Japan: JIS SUS 317
United States: ASME SA240 , ASME SA249 , ASME SA312 , ASME SA403 , ASME SA409 , ASTM A167 , ASTM A240 , ASTM A249 , ASTM A269 , ASTM A276 , ASTM A312 , ASTM A314 , ASTM A403 , ASTM A409 , ASTM A473 , ASTM A478 , ASTM A511 , ASTM A554 , ASTM A580 , ASTM A632 , FED QQ-S-763 , MIL SPEC MIL-S-862 , SAE 30317 , SAE J405 (30317) , UNS S31700

Composition
Element Weight %
C  0.08 
Mn  2.00 
Si  1.00 
Cr  18.0-20.0 
Ni  11.0-15.0 
P  0.045 
S  0.03 
Mo  3.0-4.0 
Mechanical Properties
Properties  Conditions 
T (°C) Treatment
Density (×1000 kg/m3) 8 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 193 25  
Tensile Strength (Mpa) 515  25  hot finished and annealed (wire) more
Yield Strength (Mpa) 205 
Elongation (%) 40 
Reduction in Area (%) 50 
Hardness (HRB) 95 (max)  25  annealed (plate, sheet, strip) 
Thermal Properties
Properties  Conditions 
T (°C) Treatment
Thermal Expansion (10-6/ºC) 15.9  0-100 more  
Thermal Conductivity (W/m-K) 16.2  100 more  
Specific Heat (J/kg-K) 500  0-100   
Electric Properties
Properties  Conditions 
T (°C) Treatment
Electric Resistivity (10-9W-m) 740  25   

 

Product description:

Step Shaft 1.4449 Tube 1.4449 Pie-shaped 1.4449  Ring 1.4449  Module Large valves of the main 1.4449 Other Profiled forgings 1.4449      

Special Steel classification:

Stainless steel, Hi-Steel HSLA-80, Mould steel,  Heat resistant steel, Tool steel, Ball bearing steel,Spring steelAlloy steel,  Construction steel,  Die steel,

High-speed steel,  angles, channels, H steel, I-beams, welded pipes, seamless tubes,

Standard:
Our products meet Chinese GB, Japanese JIS, US ASTM, UK BS, EU DIN standards and so on.

Our advantages:

Our advantages such as advanced management and operation concepts, suitable work facilities, highly qualified talents and a number of trade partners who have long-term

and close cooperation with us have ensured us to provide global customers with competitive high-quality commodities and excellent services, quickly, accurately,

conveniently and completely.

Products Introduction:

Specifications

Round bar:
Diameter : 1mm-2000mm

Square bar:
Size:  50mm * 50mm-600mm *600mm

Plate steel/flat bar:
Size: Thickness:  0.1mm-800mm Width: 10mm to 1500mm

Tube/pipe:
Size: OD:  6-219mm  WT: 1-35 mm.

Cold-rolled sheet: Thickness:  2-5mm Width:1000mm Length: 2000mm

Hot-rolled sheet: Thickness:6-80mm Width: 210-610mm

Length:  We can supply any length based on the customer's requirement.

Forging/hot rolling/ extrusion of steel.

Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

Finished goods condition:  hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement

Surface conditions:  scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement

Furnaces for metallurgical processing:  electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.

Ultrasonic inspection:  100% ultrasonic inspection for any inperfections or based on the customer's requirement.

UTS according to SEP 1921 C/c,D/d,E/e;A388 or GB/T 6402

Excellent service for all kinds of industries, with advantages of technologies,  equipment and price.

We serve you with our honesty,  integrity,  and professionality.

Stainless Steel Suppliers | Hi-Steel HSLA-80 | Steel mould | Heat resistant steel | Tool Steel | Ball bearing steel | Spring steel | Alloy

Copyright 2003 - 2011 China longhai special steel Co., LTD is mainly engaged in all kinds of stainless steel 630 production, wholesale, retail enterprises

TEL:+86-15328239557 | FAX:+86-816-3639422 | E-mail:sales@specialsteel-jy.com | Add:119#,Jiangdong road, Sanhe Town,Jiangyou City, Sichuan Province, China | Zip:621701