Metalloy pipings solutions are among the pre-eminent organizations, involved in manufacturers, suppliers, stockists and exporter Alloy Steel Tubes. Available in different lengths, thicknesses and sizes, these Alloy Steel Tubes are widely demanded by various industries like food & beverage, chemical, petrochemical, pharmaceutical and cosmetics. In addition to this, we provide tailor-made solution for all our offered Alloy Steel Tubes as per customers’ requirements.
What is Alloy Steel?
Alloy steel is steel that is alloyed with a variety of elements in total amounts 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.
Strictly speaking, every steel is an alloy, but not all steels are called "alloy steels". The simplest steels are iron (Fe) alloyed with carbon (C) (about 0.1% to 1%, depending on type). However, the term "alloy steel" is the standard term referring to steels with other alloying elements added deliberately in addition to the carbon. Common alloyants include manganese (the most common one), nickel, chromium, molybdenum, vanadium, silicon, and boron. Less common alloyants include aluminum, cobalt, copper, cerium, niobium, titanium, tungsten, tin, zinc, lead, and zirconium.
Specifications
| Type | Seamless Tube, EFW Tube |
| Standard | ASTM / ASME A/SA 213, ASTM A519, ASTM A513/5, API 5CT, ASTM 335, ASTM 333, ASTM 213, A53-A53/A53M-99b, A74-A74-98, A106-A106-99e1, A126-A126-95e1, A126-A126-95e1, A312-A312/A312M-00, A312-A312/A312M-00, A335-A335/A335M-99, A369-A369/A369M-92, A376-A376/A376M-98, A524-A524-96, A790A790-A790/A790M-99A790/A790M-99 |
| Grade | T9, T11, T12, T22, T91, 4130, 4140/4142, 8620, P-5, P-9, P-11, P-22, and P-91 |
| Range | 6.35 mm OD upto 254 mm OD in 0.6 TO 20 mm thickness. |
| Wall Thicknesses | Schedules 40 through 160, STD, XS, XXS. |
| End | PLAIN END, BEVELLED END, TREADED |
| Length | SINGLE RANDOM, DOUBLE RANDOM & REQUIRED LENGTH |
| Quality Assurance | They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products. |
| Value Added Services |
|
| Test Certificates | Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report |
Chemical Composition
C, % |
Mn, % |
P, % |
S, % |
Si, % |
Cr, % |
Mo, % |
0.10-0.20 |
0.30-0.61 |
0.025 max |
0.025 max |
0.10-0.30 |
0.50-0.81 |
0.44-0.65 |
Mechanical Properties
Tensile Strength , MPa |
Yield Strength, MPa |
Elongation, % |
Hardness, HB |
415 min |
205 min |
30 min |
163 max |
Outside Diameter & Tolerance
Hot rolled |
Outside Diameter, mm |
Tolerance, mm |
OD≤101.6 |
+0.4/-0.8 |
|
101.6＜OD≤190.5 |
+0.4/-1.2 |
|
190.5＜OD≤228.6 |
+0.4/-1.6 |
|
Cold Drawn |
Outside Diameter, mm |
Tolerance, mm |
OD＜25.4 |
±0.10 |
|
25.4≤OD≤38.1 |
±0.15 |
|
38.1＜OD＜50.8 |
±0.20 |
|
50.8≤OD＜63.5 |
±0.25 |
|
63.5≤OD＜76.2 |
±0.30 |
|
76.2≤OD≤101.6 |
±0.38 |
|
101.6＜OD≤190.5 |
+0.38/-0.64 |
|
190.5＜OD≤228.6 |
+0.38/-1.14 |
Wall thickness & Tolerance
Hot rolled |
Outside Diameter, mm |
Tolerance, % |
OD≤101.6, WT≤2.4 |
+40/-0 |
|
OD≤101.6, 2.4＜WT≤3.8 |
+35/-0 |
|
OD≤101.6, 3.8＜WT≤4.6 |
+33/-0 |
|
OD≤101.6, WT>4.6 |
+28/-0 |
|
OD>101.6, 2.4＜WT≤3.8 |
+35/-0 |
|
OD>101.6, 3.8＜WT≤4.6 |
+33/-0 |
|
OD>101.6, WT>4.6 |
+28/-0 |
|
Cold Drawn |
Outside Diameter, mm |
Tolerance, % |
OD≤38.1 |
+20/-0 |
|
OD>38.1 |
+22/-0 |
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