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S355 Hot Rolled Seamless Steel Pipe 30 Inch 25mm 1018 Seamless Tubing

  • S355 Hot Rolled Seamless Steel Pipe 30 Inch 25mm 1018 Seamless Tubing
  • S355 Hot Rolled Seamless Steel Pipe 30 Inch 25mm 1018 Seamless Tubing
  • S355 Hot Rolled Seamless Steel Pipe 30 Inch 25mm 1018 Seamless Tubing
  • S355 Hot Rolled Seamless Steel Pipe 30 Inch 25mm 1018 Seamless Tubing
Place of Origin Shandong China
Brand Name TESTE
Certification ISO TUV SGS BIS CE
Model Number 20# /16Mn/ 12CrMoV /API 5L /API 5L
Minimum Order Quantity 3Tons
Price USD500~USD860 Per Ton
Packaging Details With iron sheet to pack the steel sheet and pallet .Also make the shipping marks on each bundles.
Delivery Time 5-15days depend on the quantity
Payment Terms L/C, D/A, D/P, T/T, Western Union, MoneyGram,OA
Supply Ability 5000Tons Per Months

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Product Details
Product Name Alloy Steel Pipe Standard ASTM,ASME,API
Type Hot Rolled,Cold Drawn,NPS Pipe End Plain End,Beveled End,Treaded
Product Name Seamless Alloy Steel Pipe Standard ASTM, JIS, DIN, GB
Application Petroleum, Chemical, Machinery, Electric Power, Shipbuilding, Papermaking, Construction Length Customized
Surface Treatment Seamless Technique Hot Rolled, Cold Rolled, Cold Drawn
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s355 seamless steel pipe ASTM A355 P21

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30 inch seamless steel pipe ASTM A355 P21

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25mm seamless steel tube ASTM A355 P21
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Product Description

ASTM A213 Grade T2 Seamless Alloy Steel Pipe 

ALLOY pipe

ASTM A213 is the standard specification for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes. Grade : T2, T5, T5b, T5c, T9, T11, T12, T17, T21, T22, T23, T24, T36, T91, T92, T122, and T911. The tubing sizes and thickness usually furnished to this specification are 1/8″(3.2 mm) in inside diameter to 5″(127 mm) in outside diameter and 0.015″ to 0.500″(0.4-12.7 mm) in minimum or average wall thickness. ASTM A213 tubes of custom-diameter may be furnished, provided such tubes comply with all other requirements of the standard specification.

 

GRADE

Standard Low-Alloy Steel Grade
ASTM A213

T2     T5     T5b     T5c     T9     T11     T12     T17     T21     T22

T23   T24   T36     T91     T122  T911     

 

CHEMICAL COMPOSITION

Element C Mn Si P S Cr Mo
T2 0.10~0.20% 0.30~0.61% 0.50~0.81% 0.025% 0.025% 0.50~0.81% 0.44~0.65%
T5 0.15% 0.30~0.60% 0.50% 0.025% 0.025% 4.0~6.0% 0.44~0.65%
T5b 0.15% 0.30~0.60% 1.00~2.00% 0.025% 0.025% 4.0~6.0% 0.44~0.65%
T5c 0.12% 0.30~0.60% 0.50% 0.025% 0.025% 4.0~6.0% 0.44~0.65%
T9 0.15% 0.30~0.60% 0.25~1.00% 0.025% 0.025% 8.0~10.0% 0.90~1.10%
T11 0.05~0.15% 0.30~0.60% 0.50~0.10% 0.025% 0.025% 1.0~1.5% 0.44~0.65%
T12 0.05~0.15% 0.30~0.61% 0.50% 0.025% 0.025% 0.8~1.25% 0.44~0.65%
T17 0.05~0.25% 0.30~0.61% 0.15~0.35% 0.025% 0.025% 0.8~1.25% -
T21 0.05~0.15% 0.30~0.60% 0.50~0.10% 0.025% 0.025% 2.65~3.35% 0.80~1.06%
T22 0.05~0.15% 0.30~0.60% 0.50% 0.025% 0.025% 1.9~2.6% 0.87~1.13%
T23 0.04~0.10% 0.10~0.60% 0.50% 0.03% 0.010% 1.9~2.6% 0.05~0.30%
T24 0.05~0.10% 0.30~0.70% 0.15~0.45% 0.02% 0.010% 2.20~2.60% 0.09~1.10%
T36 0.10~0.17% 0.80~1.20% 0.25~0.50% 0.03% 0.025% 0.30% 0.25~0.50%
T91 0.07~0.14% 0.30~0.60% 0.20~0.50% 0.02% 0.010% 8.0~9.5% 0.85~1.05%
T92 0.07~0.13% 0.70% 0.50% 0.02% 0.010% 8.5~9.5% 0.30~0.60%
T122 0.07~0.14% 0.30~0.60% 0.50% 0.02% 0.010% 10.0~11.5% 0.25~0.60%
T911 0.09~0.13% 0.30~0.60% 0.10~0.50% 0.02% 0.010% 8.5~9.5% 0.09~1.10%

 

ALLOYING ELEMENTS

 

The addition of Molybdenum (“Moly”) increases the strength of the steel and its elastic limit, enhance the steel resistance to wear, its impact qualities, and the hardenability. It also improves the resistance to softening, makes chromium steel less prone to embrittlement and prevents pitting.

Chromium, a key element also for stainless steel alloys, prevents steel oxidation at elevated temperatures and increases the resistance of steel to corrosion. It enhances the tensile, yield, and hardness properties of low-alloy pipes at room temperatures.
Other alloying elements, present in various degrees in pipes of all grades are:

  • Aluminum: decreases oxygen from steelmaking
  • Boron: used to produce fine grain size and enhance steel hardness
  • Cobalt: used to enhance the steel’s heat and wear-resistance
  • Manganese: gives better steel hardenability
  • Nickel: Enhances toughness, hardenability and impact strength at low temperatures
  • Silicon: decreases oxygen, enhances hardenability and toughness
  • Titanium: prevents precipitation of chromium carbide
  • Tungsten: refines steel grain size and enhance the steel hardness, especially at high temperatures
  • Vanadium: gives steel enhanced fatigue resistance

 

As mentioned, low-alloy steels have a total amount of alloying elements below 5%; high alloy steel has a higher percentage of these elements.

 

 

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