ASTM A335 ASME SA335 P11 P22 P91 seamless alloy steel pipe boiler tube

Short Description:

Alloy pipe is a kind of seamless steel pipe, its performance is much higher than that of general seamless steel pipe, because this type of steel pipe contains more Cr, its high temperature resistance, low temperature resistance, corrosion resistance performance is much better than  other Steel pipe , so the alloy pipe is widely used in petroleum, aerospace, chemical, electric power, boiler, military and other industries.


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Product Introduction

Alloy pipe is a kind of seamless steel pipe, its performance is much higher than that of general seamless steel pipe, because this type of steel pipe contains more Cr, its high temperature resistance, low temperature resistance, corrosion resistance performance is much better than other Steel pipe, so the alloy pipe is widely used in petroleum, aerospace, chemical, electric power, boiler, military and other industries. 

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%.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.

Product Specification

Item Cold rolled/Hot rolled alloy steel seamless pipe
Standard GB3087, GB6479-2000, GB9948-2006, GB5310-2013, GB5310-95, GB9948-88.ASTM A209M/ASME 209M, ASME SA210, ASTM A213/ASME SA213M

ASTM A333M/ASME SA333/SA333M, ASTM A334M/ASME SA334/SA334M

ASTM A335/ASME SA335, ASTM A519, ASTM A691, DIN 17175, EN10216-2

JISG3467, JISG3458, JIS G3441, NF A49-213/215, BS3059, BS3604, BS3606

Materials 20G, 25MnG, 15MoG, 15CrMoG, 20MoG, 12CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB, 10Cr9Mo1VNb, 15CrMoG, 10CrMo910.A209T1/SA209 T1, A209 T1b/SA-209 T1b, A209T1a/SA209 T1a.

T2, T5, T9, T11, T12, T22, T23, T24, T91, T911, T92, T122.

Gr1, Gr3, Gr4, Gr6, Gr7,Gr8, Gr9, Gr10, Gr11.

P1, P2, P5,P5b, P5c, P9, P11, P12,P21,P22,P23, P24, P91, P92.

4118, 4130, 4135, 4137, 4140.

GRADE 91, CM65, CM70, CM75, CMSH70, CMS75, CMSH80.

GRADE 1/2 Cr, GRADE 1CR, GRADE 1 1/4 CR, 2 1/4 Cr, 3CR, 5CR, 9CR.

ST35.8, ST45.8, 15Mo3, 13CrMo44, 10CrMo910, 14MoV63,12Cr1MoV.

P195GH, P235GH, P265GH, 13CrMo4-5, 10CrMo9-10, 16Mo3, 10CrMo5-5, X10CrMoVNb9-1.

STPA12, STPA20, STPA22, STPA23, STPA24, STPA25, STPA26.

SCR420 TK,SCM415 TK, SCM418 TK, SCM420TK, SCM430TK, SCM435TK, SCM440TK.

TU15D3, TU13CD4-04, TU10CD910, TUZ10CD505.

S1-622-440, S2-622-440, S1-622-490, S2-622-490, S1-629-470, S2-629-470, S2-629-590.

HFS625 CFS625, CFS625.

Description Surface black painted, PE coated, galvanized
  Length 5.8m, 6m, 11.8m, 12m, or as required
  Wall Thickness 1-120mm
  Outer Diameter 6-1200mm
Trade terms Payment terms T/T,L/C
  Price terms FOB,CIF
Package Standard export seaworthy package or as required.
Delivery time Prompt delivery or as the order quantity.
Export to Alloy steel pipe applies to petroleum,chemical industry, electric power, boiler, high temperature resistant, low temperature resistant,corrosion resistant seamless steel pipe used.Alloy steel pipealso can made according to the customer.
Container size 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 24-26CBM40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 54CBM

40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) 68CBM

Contact If you have any question,please feel free to contact me.

ASTM A335 Seamless Alloy Steel Pipe

A335 is often called chrome moly pipe because of the chemical makeup of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases the strength of steel as well as the elastic limit, resistance to wear, impact qualities, and hardenability. Moly increases the resistance to softening, restrains grain growth and makes chromium steel less susceptible to embrittlement. Moly is the most effective single additive that increases high temperature creep strength. It also enhances the corrosion resistance of steel, and inhibits pitting. Chromium (or chrome) is the essential constituent of stainless steel. Any steel with 12% or more Chrome is considered stainless. Chrome is virtually irreplaceable in resisting oxidation at elevated temperatures. Chrome raises the tensile, yield, and hardness at room temperatures. The composition chrome moly alloy steel pipe make it ideal for use in power plants, refineries, petro chemical plants, and oil field services where fluids and gases are transported at extremely high temperatures and pressures.

Chemical Composition:

 

Grade

ASTM A335 P5

ASTM A335 P9

ASTM A335 P11

ASTM A335 P22

ASTM A335 P91

Element

UNS Designation

K41545

S50400

K11597

K21590

K91560

Carbon

0.15 max

0.15 max

0.05 – 0.15

0.05 – 0.15

0.08 – 0.12

V at 0.18 – 0.25

Manganese

0.30 – 0.60

0.30 – 0.60

0.30 – 0.60

0.30 – 0.60

0.30 – 0.60

N at 0.030 – 0.070

Phosphorous, max

0.025

0.025

0.025

0.025

0.020

Ni at 0.40 max

Sulfur, max

0.025

0.025

0.025

0.025

0.010

Al at 0.02 max

Silicon

0.50 max

0.25 – 1.00

0.50 – 1.00

0.50 max

0.20 -0.50

Cb at 0.06 – 0.10

Chromium

4.00 – 6.00

8.00 – 10.00

1.00 – 1.50

1.90 – 2.60

8.00 – 9.50

Ti at 0.01 max

Molybdenum

0.45 -0.65

0.90 – 1.10

0.44 – 0.65

0.87 – 1.13

0.85 – 1.05

Zr at 0.01 max

Mechanical Properties:

Mechanical properties

P1,P2

P12

P23

P91

P92,P11

P122

Tensile strength

380

415

510

585

620

620

Yield strength

205

220

400

415

440

400

Tensile Requirements:

Tensile Strength,min., psi

P-5

P-9

P-11

P-22

P-91

P91 shall not have a hardness

not exceeding 250 HB/265 HV [25HRC].

  ksi

60

60

60

60

85

   
  MPa

415

415

415

415

585

   
Yield Strength, min., psi              
  ksi

30

30

30

30

60

   
  MPa

205

205

205

205

415

   

AISI A519 4130, 4140 Seamless Alloy Steel Pipe

The good strength and its hardenability make alloy 4130 steel seamless round tubing a good fit for applications that deal with structural employment. If this low alloy steel is manufactured using specification ASTM A519, they are either hot finished or they may be cold finished. If the ASTM A519 Grade 4130 Pipe is to be a part of mechanical tubing, they could be strand cast or cast in ingots. 4130 Alloy Steel Seamless Pipe is customarily contrived by hot working steel. If imminent, these hot worked tubular pipes are subsequently cold finished in order to construct the solicited dimensions, shape or properties. Pipes are commonly furnished in any one of the following shapes - square, round, rectangular as well as sections of a specific nature. To circumscribe the portions of the elements specified, a heat analysis could be employed. The 4130 Chromoly Steel Pipe could be coated with a film of oil before the performance of any shaping operation. Coating is applied on these pipes to hinder rust if specified by the buyer.

Chemical Composition:

Standard

Steel Grade

C(%)

Si(%)

Mn(%)

P(%)

S(%)

Cr(%)

Mo(%)

A519

1010

0.05-0.15

0.15-0.35

0.3-0.6

≤0.04

≤0.05

-

-

1020

0.15-0.25

0.15-0.35

0.3-0.6

≤0.04

≤0.05

-

-

1045

0.43-0.50

0.15-0.35

0.6-0.9

≤0.04

≤0.05

-

-

4130

0.28-0.33

0.15-0.35

0.4-0.6

≤0.04

≤0.04

0.8-1.1

0.15-0.25

4135

0.32-0.39

0.15-0.35

0.6-0.9

≤0.04

≤0.04

0.8-1.1

0.15-0.25

4140

0.38-0.42

0.15-0.35

0.7-1.0

≤0.04

≤0.04

0.8-1.1

0.15-0.25

Other Specification:

End Shape

Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per customer's requirements

Surface 

Treatment

Oiled, Galvanized, Phosphate etc

Technique 

Cold drawn & cold rolled

Application

1. Automotive and mechanical pipes
2. Petroleum cracking pipes
3. High Pressure Boiler Pipe
4. Low and middle pressure fluid transportation pipeline
5. Chemical fertilizer equipment pipes
6. Heat exchanger pipes

Delivery 

Conditions

1. BK (+C)  No heat treatment after last cold forming process.
2. BKW (+LC) After last heat treatment there is a light finishing pass (cold drawing)
3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed.
4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled atmosphere.
5. NBK (+N) After the final cold forming process the tubes are annealed above theupper transformation point in a controlled atmosphere. 

Package

1. Bundle Packing.
2. Plain end or vanished as per customer's request.
3. Wrapped in waterproof paper.
4. Sackcloth with several steel strips.
5. Pack in heavy tri-wall boxes.

Product Display

Product Display

Packaging And Transportation

We offer different modes of transport depending on the customer's destination: rail transport and ship transport,etc.The Shipping Mark shall consist of: Trade mark, Seller's name, Product name, Applicable standards,Specifications, Package No., Contract No., Heat No., Production date, Weighing method, Net weight, Gross Weight, Consignee and Protection symbols, etc.

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