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ASTM A335 P91 ASTM A335 P92 Seamless Steel Pipe For High Temperature Service

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ASTM A335 P91 ASTM A335 P92 Seamless Steel Pipe For High Temperature Service

China ASTM A335 P91 ASTM A335 P92 Seamless Steel Pipe For High Temperature Service supplier
ASTM A335 P91 ASTM A335 P92 Seamless Steel Pipe For High Temperature Service supplier ASTM A335 P91 ASTM A335 P92 Seamless Steel Pipe For High Temperature Service supplier

Large Image :  ASTM A335 P91 ASTM A335 P92 Seamless Steel Pipe For High Temperature Service

Product Details:

Place of Origin: China
Brand Name: Mittel Steel
Certification: CE, SGS, BV, ISO
Model Number: ASTM A335 P91 Seamless Alloy-Steel Pipe

Payment & Shipping Terms:

Minimum Order Quantity: 2 tons
Price: USD 2500-2858 per ton
Packaging Details: Standard seaworthy packaging by plywood pallet.
Delivery Time: within 7-10 working days
Payment Terms: L/C, T/T, Western Union, Paypal
Supply Ability: 30000 tons per month
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Detailed Product Description
Product Name: ASTM A335 P91 Seamless Alloy-Steel Pipe OD: 12mm-620mm
Wall Thickness: 0.25mm-45mm Length: 1000mm-12000mm
Shape: Round Standard: ASTM, AISI, JIS, DIN, EN, GB
Certification: CE, ISO, BV, SGS Technique: Seamless
Sample: Allowed Application: Machinery

ASTM A335 P91, ASTM A335 P92 Seamless Alloy-Steel Pipe For High-Temperature Service

Astm A335 standard specication for seamless ferritic alloy-steel pipe for high-temperature service

ASTM A335 standard is issued under the fixed designation A 335/A 335M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon ( ュ) indicates an editorial change since the last revision or reapproval.

 

Scope

1.1This specification covers nominal (average) wall seamless alloy-steel pipe intended for high-temperature service (Mote 1). Pipe ordered to this specification shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding. Selection will depend upon design, service conditions, mechanical properties, and high-temperature characteristics.

NOTE 1 Α Appendix X1 lists the sizes and wall thicknesses of pipe which may be obtained under current commercial practice.

1.2 Several grades of ferritic steels (Note 2) are covered. Their compositions are given in Table 1.

Note 2

ΑFerritic steels in this specification are defined as low and intermediate-alloy steels containing up to and including 10% chromium.
1.3 Supplementary requirements (S1 to S7) of an optional nature are provided. These supplementary requirements call for additional tests to be made, and when desired, shall be so stated in the order together with the number of such tests required.
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with specification. The inch-pound units shall apply unless the "M" designation of this specification is specified in the order.

Note 3ΑThe dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as "nominal diameter," "size," and "nominal size."

Chemical Composition:
Grade C Mn P S Si Mo
P1 0.10-0.20 0.30-0.80 0.025 0.025 0.10-0.50 0.44-0.65
P2 0.10-0.20 0.30-0.61 0.025 0.025 0.10-0.30 0.44-0.65
P5 0.15max 0.30-0.60 0.025 0.025 0.50max 0.45-0.65
P5b 0.15max 0.30-0.60 0.025 0.025 1.00-2.00 0.45-0.65
P5c 0.12max 0.30-0.60 0.025 0.025 0.50max 0.45-0.65
P9 0.15max 0.30-0.60 0.025 0.025 0.25-1.00 0.90-1.10
P11 0.05-0.15 0.30-0.60 0.025 0.025 0.50-1.00 0.44-0.65
P12 0.05-0.15 0.30-0.61 0.025 0.025 0.50max 0.44-0.65
P15 0.05-0.15 0.30-0.60 0.025 0.025 1.15-1.65 0.44-0.65
P21 0.05-0.15 0.30-0.60 0.025 0.025 0.50max 0.80-1.06
P22 0.05-0.15 0.30-0.60 0.025 0.025 0.50max 0.87-1.13
P23 0.04-0.10 0.10-0.60 0.030max 0.010max 0.50max 0.05-1.30
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

 

Heat Treatment
A / N+T
N+T / Q+T
N+T
Material & Manufacture

Pipe may be either hot finished or cold drawn with the finishing heat treatment noted below.

Heat Treatment Requirements
Grade Heat Treatment Type
P5, P9, P11, and P22
Normalizing Temperature Range F [C] Subcritical Annealing or Tempering
Temperature Range F [C]
A335 P5 (b,c) Full or Isothermal Anneal    
  Normalize and Temper ***** 1250 [675]
  Subcritical Anneal (P5c only) ***** 1325 – 1375 [715 - 745]
A335 P9 Full or Isothermal Anneal    
  Normalize and Temper ***** 1250 [675]
A335 P11 Full or Isothermal Anneal    
  Normalize and Temper ***** 1200 [650]
A335 P22 Full or Isothermal Anneal    
  Normalize and Temper ***** 1250 [675]
A335 P91 Normalize and Temper 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]
  Quench and Temper 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]
Mechanical Tests Specified

Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test
For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested.
For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.

Notes for Hardness Test:
P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC].

Notes for Bend Test:
For pipe whose diameter exceeds NPS 25 and whose diameter to wall thickness ratio is 7.0 or less shall be subjected to the bend test instead of the flattening test.
Other pipe whose diameter equals or exceeds NPS 10 may be given the bend test in place of the flattening test subject to the approval of the purchaser.
The bend test specimens shall be bent at room temperature through 180 without cracking on the outside of the bent portion.

Hydrostatic Test

The inside diameter of the bend shall be 1 inch [25 mm].
Each length of pipe shall be Hydro tested, at option of manufacture nondestructive electric testing can be used.

Ordering Information

Orders for material under this specification should include the following, as required, to describe the desired material adequately:

Quantity Feet, meters, or number of lengths
Name of material Seamless Alloy Steel Pipe
Grade P5, P9, P11, P22, P91
Manufacture Hot-finished or cold-drawn
Size using one of the following:
NPS and Schedule Number
Outside Diameter and Nominal Wall Thickness
Outside Diameter and Minimum Wall Thickness
Inside Diameter and Nominal Wall Thickness
Inside Diameter and Minimum Wall Thickness
Length Specific or Random
End Finish
Referenced Documents
  • A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe
  • E213 Practice for Ultrasonic Examination of Metal Pipe and Tubing
  • E309 Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation
  • E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
  • E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
  • E570 Practice for Flux Leakage Examination of Ferromagnetic Steel Tubular Products
  • B36.10M Welded and Seamless Wrought Steel Pipe
  • SAE J 1086 Practice for Numbering Metals and Alloys (UNS)
  • SNT-TC-1A Recommended Practice for Nondestructive Personnel Qualification and Certification

 

 

ASTM A335 P91 ASTM A335 P92 Seamless Steel Pipe For High Temperature Service

 

ASTM A335 P91 ASTM A335 P92 Seamless Steel Pipe For High Temperature Service

 

Usage: Hydraulic Pipe, Fluid Pipe, physical construction, hydraulic device, automobile parts, Steel sleeve, bearing, hydraulic cylinder, Pneumatic cylinder and hydraulic pipe

 

Standard: ISO, JIS, GB, DIN, ASTM, API

 

2) Drawing of Precision Pipe

EN 10305 DIN2391 ST52 precision cold drawn seamless steel pipe, precision pipe and tube a333 gr6

 

3) Product Size Specification Table (mm) (Blue Area)

EN 10305 DIN2391 ST52 precision cold drawn seamless steel pipe, precision pipe and tube a333 gr6

 

Remark: We also produce customized sizes out of this list

 

4) Chemical composition

 

Chemical composition of precision pipe in frequently used grade

Standard Grade Chemical composition (%)
    C Si Mn S P Cr
GB/T699 10# 0.07~0.13 0.17~0.37 0.35~0.65 0.035 0.035  
GB/T3639-2000 20# 0.17~0.23 0.17~0.37 0.35~0.65 0.035 0.035  
GB3077-88 35# 0.32~0.39 0.17~0.37 0.35~0.65 0.035 0.035  
  45# 0.42~0.50 0.17~0.37 0.50~0.80 0.035 0.035  
  40cr 0.37~0.44 0.17~0.37 0.50~0.80 0.035 0.035 0.08~1.10
  25Mn 0.22~0.29 0.17~0.37 0.70~1.00 0.035 0.035 0.25
  37Mn5 0.30~0.39 0.15~0.30 1.20~1.50 0.015 0.020  

 

5) Mechanical properties

 

Mechanical properties of common precision pipe

Standard Grade Designation (%)
    Cold finished (hard)(BK) Cold finished (Soft) BKW
    UTS(Ultimate Tensile Strength) percentage elongation after fracture UTS(Ultimate Tensile Strength) percentage elongation after fracture
   
    σ b (Mpa) δ 5(%) σ b (Mpa) δ 5(%)
GB/T3639-2000 10# 410 6 375 10
GB3077-88 20# 510 5 450 8
  35# 590 4 550 6
  45# 645 4 630 5
  40cr 784 12    
  37Mn5 784 12    

 

Remarks:

 

Cold Finished (Hard): Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation

 

Cold Finished (Soft): The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding)

 

6) Product Application Industry

EN 10305 DIN2391 ST52 precision cold drawn seamless steel pipe, precision pipe and tube a333 gr6

 

Application Field:

Mechanical processing, machinery manufacturing, automobile

 

7) Quality Control

 

A. Advanced Production Equipment

EN 10305 DIN2391 ST52 precision cold drawn seamless steel pipe, precision pipe and tube a333 gr6

 

B. Production Flow

 

C. Skill-full and Qualfied Workers, Training and Testing before Working

EN 10305 DIN2391 ST52 precision cold drawn seamless steel pipe, precision pipe and tube a333 gr6

 

D. Strictly Qualtity Control System

EN 10305 DIN2391 ST52 precision cold drawn seamless steel pipe, precision pipe and tube a333 gr6

 

8) Packing & Shipping

 

A) Packing Method

 

Small size in bundles, big size in bulk, with plastic cap to protect both ends, seaworthy packaging or as per customer's requests.

 

EN 10305 DIN2391 ST52 precision cold drawn seamless steel pipe, precision pipe and tube a333 gr6

 

B) Shipping Way

 

As per customer's request.

 

Usually by Sea, by Air, by Train or River-and-Sea Coordinated Transport.

 

FAQ

Q: What about your payment term?

A: Usually T/T or L/C, 30% deposit and 70% before delivery.

Q: what about your standard delivery date ?

A: 30 days after receiving deposit

Q: How about your capacity ?

A: For steel pipes, 50,000 tons per month, 600,000 tons per year. For pipe fittings, 30,000 tons per year

Q: what about your package ?

A: Usually as per customer's requests.

Common packing information: Small size in bundles, big size in bulk, some sizes with plastic cap to protect both ends, seaworthy packaging.

Q: What is your main market &main customers ?

A: We have 12 years experience on steel pipes & pipe fittings. Our main market includes China, Singapore etc. Main Customers including HYST, Keppel group etc.

Q: If products have some quality problem,how would you deal with?

A: We will responsible for all of our quality problems.

Q: How to get accurate price / quotation from you?

A: Please kindly tell us below details and we'll send our quotation to you ASAP:

1) Pipe's outer diameter

2) Wall thickness

3) Section Shape (round, square etc.)

4) Length for each pipe

5) Steel grade

6) Standard (e.g.: API 5L)

7) Order quantity

8) Designation (BK, BKW etc.)

9) Trade Terms

P.S.: more detailed information you clarified, more exact price we provided.

 

 

Contact Details
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

Contact Person: Gao Ben

Tel: +8618068357371

Send your inquiry directly to us (0 / 3000)