Seamless Alloy Steel Tube
Classification :
PRODUCT DETAILS
Seamless Alloy Steel Tube
Type: Alloy Pipe, Alloy Tube, Alloy Steel Pipe, Alloy Steel Tube
Application: In Petroleum, Aerospace, Chemical, Power, Boilers, Military Industry
Specification: Outside Diameter: 1/8'' ~ 26''
Wall Thickness: SCH 30, 30, 40, 60, 80, 120, 140, 160, XS, XXS, STD
Length: Single Random, Double Random, Cut Length max to 23m
Standard & Grade: ASTM A333, A335 P5/P9/P11/P22/P91, DIN 17175, JIS G3458
End: Plain End, Beveled End, Thread End
Packing: Standard Packaging
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.
| Product | SEAMLESS / ALLOY STEEL PIPE |
| Dimension | 6 mm - 1080 mm |
| Thickness | 1mm - 135 mm |
| Length | 3 m - 12 m or according to the requirements of clients |
| Standard | ASTM GB DIN |
| Steel grade | A106/53/179/214/192/210 A/B/C ST37.2/35.4/35.8/52/52.3/52.4/42/45 10# 20# 45# P2, P12, P11, P22, P5, P9, P91 T2, T11,T5,T9,T22, 4140, 12CrMo, 15CrMo, 12Cr2Mo, 1Cr5Mo, 2CrMo4, 1Cr9Mo, 10CrMo910, etc. |
| Trade terms | FOB/CIF/CFR |
| Payment terms | T/T, L/C |
| Delivery port | Tianjin, China |
| Delivery time | 10 or according to the real quantity of the tubes |
| Surface treatment | Black painting Varnish painting 3PE Hot galvanized or other coating according to your requirements Bare tube |
| End of tubes | Beveled, plain, thread, plastic caps |
| Inspection | Ultrasonic examination, eddy inspection, hydrosttic testing etc. |
| Package | Standard Packaging |
| Certificate | API 5L/5CT, ISO, PED etc. |
Technical data
Chemical Composition
| C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % |
| 0.05-0.15 | 0.30-0.60 | 0.025 max | 0.025 max | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
Mechanical Properties
| Tensile Strength, MPa | Yield Strength, MPa | Elongation, % |
| 415 min | 205 min | 30 min |
Outside Diameter & Tolerance
| ASTM A450 | 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 | ||
| ASTM A530 & ASTM A335 | NPS | Outside Diameter, inch | Tolerance, mm |
| 1/8≤OD≤1-1/2 | ±0.40 | ||
| 1-1/2<OD≤4 | ±0.79 | ||
| 4<OD≤8 | +1.59/-0.79 | ||
| 8<OD≤12 | +2.38/-0.79 | ||
| OD>12 | ±1% |
Wall thickness & Tolerance
| ASTM A450 | 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 | ||
| ASTM A530 | NPS | Outside Diameter, inch | Tolerance, % |
| 1/8≤OD≤2-1/2 | +20.0/-12.5 | ||
| 3≤OD≤18, WT/OD≤5% | +22.5/-12.5 | ||
| 3≤OD≤18, WT/OD>5% | +15.0/-12.5 | ||
| OD≥20, WT/OD≤5% | +22.5/-12.5 | ||
| OD≥20, WT/OD>5% | +15.0/-12.5 |
Standard
ASTM A335--for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
ASTM A519--for Seamless Carbon and Alloy Steel Mechanical Tubing
ASTM A213--for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM ASME (S)A-335/(S)A-335M Grade and Chemical Composition
| Grade | UNS | C≤ | Mn | P≤ | S≤ | Si≤ | Cr | Mo |
| P1 | K11522 | 0.10~0.20 | 0.30~0.80 | 0.025 | 0.025 | 0.10~0.50 | - | 0.44~0.65 |
| P2 | K11547 | 0.10~0.20 | 0.30~0.61 | 0.025 | 0.025 | 0.10~0.30 | 0.50~0.81 | 0.44~0.65 |
| P5 | K41545 | 0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.50 | 4.00~6.00 | 0.44~0.65 |
| P5b | K51545 | 0.15 | 0.30~0.60 | 0.025 | 0.025 | 1.00~2.00 | 4.00~6.00 | 0.44~0.65 |
| P5c | K41245 | 0.12 | 0.30~0.60 | 0.025 | 0.025 | 0.50 | 4.00~6.00 | 0.44~0.65 |
| P9 | S50400 | 0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.50~1.00 | 8.00~10.00 | 0.44~0.65 |
| P11 | K11597 | 0.05~0.15 | 0.30~0.61 | 0.025 | 0.025 | 0.50~1.00 | 1.00~1.50 | 0.44~0.65 |
| P12 | K11562 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.50 | 0.80~1.25 | 0.44~0.65 |
| P15 | K11578 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 1.15~1.65 | - | 0.44~0.65 |
| P21 | K31545 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.50 | 2.65~3.35 | 0.80~1.60 |
| P22 | K21590 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | 0.50 | 1.90~2.60 | 0.87~1.13 |
| P91 | K91560 | 0.08~0.12 | 0.30~0.60 | 0.020 | 0.010 | 0.20~0.50 | 8.00~9.50 | 0.85~1.05 |
| P92 | K92460 | 0.07~0.13 | 0.30~0.60 | 0.020 | 0.010 | 0.50 | 8.50~9.50 | 0.30~0.60 |
Note: (S)A335 P91 other chemical composition are : V 0.18~0.25; N 0.030~0.070; Ni ≤ 0.40; Al ≤ 0.04 ; Nb 0.06~0.10
(S)A335 P92 other chemical composition are : V 0.15~0.25; N 0.030~0.070; Ni ≤ 0.40; Al ≤ 0.04 ; Nb 0.04~0.09; W 1.5~2.00 ; B 0.001~0.006
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Factory video
The company has passed "ISO9001 quality system certification, EU CE certification",etc. We sincerely welcome customers from all over the world to visit our company to discuss long-term cooperation.
Warehouse Storage
Meichen Steel Group Co., Ltd. is a production and trading integrated company, with 13 years of experience in competitive steel products at home and abroad, to provide reliable services to global customers.The main products are steel pipe, steel plate, steel coil, steel rod, steel strip, section steel, silicon steel, stainless steel series, carbon steel series, aluminum products and so on. Products are widely used in precision instruments, aviation, ships, automobiles, home appliances, construction, Bridges, boilers, highway guardrail and other industries.

Packing and shipping
Products are widely used in precision instruments, aviation, ships, automobiles, home appliances, construction, Bridges, boilers, highway guardrail and other industries. Annual sales of more than 6 million tons. Products are exported to more than 80 countries and regions. We have won the recognition of customers with good reputation and good service.


Customer feedback
Meichen Steel Group Co., Ltd. is a comprehensive enterprise integrating production, processing and trade. With 13 years of experience in the production of high-quality steel at home and abroad, Meichen Iron & Steel Group Co., Ltd. provides reliable services to global customers. We sincerely welcome customers from all over the world to visit our company to discuss long-term cooperation.

Application field
The company is located in Jinan City, Shandong Province, adjacent to Qingdao Port, Tianjin port, export traffic conditions are convenient. The main products are steel pipe, steel plate, steel coil, steel strip, section steel, silicon steel, stainless steel series, carbon steel, galvanized color coating series, etc. Products are widely used in precision instruments, aviation, ships, automobiles, medical, construction, Bridges, boilers, parts processing and other industries.

COOPERATIVE PARTNER
ENTERPRISE HONOR
WHY CHOOSE US ?
01.Advanced equipment
Three production lines, using the most advanced equipment in China, a plant area of 30,000 square
meters.
02.High quality
We choose high-quality raw materials.
03.Output
Steel products complete, annual sales of 300,000 tons, and have sufficient inventory.
04.Quality inspection
The implementation of strict quality inspection standards, products comply with ISO, SGS international standards, to ensure 100%compliance with customer requirements.
FAQ
FAQ
Q1:Can you send samples?
A:Of course, we can provide customers with free samples and express shipping service to all over of the world.
FAQ
Q2:What product information do I need to provide?
A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.
FAQ
Q3:It's my first time to import steel products, can you help me with it?
A:Sure,we have agent to arrange the shipment, we will do it together with you.
FAQ
Q4:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
FAQ
Q5:What ports of shipment are there?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.
FAQ
Q6:What is your terms of payment ?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.
FAQ
Q7.Do you provide custom made Products service?
A: Yes,if you have your own design , we can produce according to your specification and drawing.
FAQ
Q8:What are the certifications for your products?
A:We have ISO 9001, MTC, third parties’ inspections are all available such SGS, BV ect.
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