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We are supplying seamless alloy pipe with big diameter and wall thickness. This kind of alloy pipe are widely used at power plant, boiler industry, mechanical making, chemical plant, nuclear power industry, etc.
Standard: ASME SA106, ASME SA335, ASME SA333, DIN17175, EN10216-2, GB5310, GB3087.
Steel grade: SA335 P11/P12/P22/P91/P92, WB36, 10CrMo910, 20G, 15CrMo, 12Cr1MoVG,
          SA333 I, SA333VI, ST45.8/III,etc
Outer diameter: 219mm~1066mm
Wall thickness: 15mm~120mm
Tolerance of size of our seamless alloy pipe:
Type of pipe
Outer diameter
Wall thickness
OD (mm)
Tolerance (mm)
WT (mm)
Tolerance (mm)
Hot rolled pipe
219~457
±1.0%
≤20
-10%~+12.5%
>20~40
-10%~+10%
457~1066
±0.9%
>40~70
-7%~+9%
>70~120
-6%~+8%
Further more, the plant has large-scale cold rolling machine(by 1200t, 1600t, 2000t), the maximum cold rolling diameter can be 920mm. Cold rolling technics can improve the precision of diameter and wall thickness. So we can supply high steel grade steel pipe with big diameter and thin thickness.
Our service
Make production according to customer's specific requirements strictly.
Accept inspection during the production or before shipment.
Provide the original copy of MTC(Mill testing certificate)
Provide the standard seaworthy packing.
Arrange the most professional shipment.
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ASTM A335 Standard Seamless Steel Pipe for Boier pipe, power plant
We are supplying seamless alloy pipe with big diameter and wall thickness. This kind of alloy pipe are widely used at power plant, boiler industry, mechanical making, chemical plant, nuclear power industry, etc.
Standard: ASME SA106, ASME SA335, ASME SA333, DIN17175, EN10216-2, GB5310, GB3087.
Steel grade: SA335 P11/P12/P22/P91/P92, WB36, 10CrMo910, 20G, 15CrMo, 12Cr1MoVG,
          SA333 I, SA333VI, ST45.8/III,etc
Outer diameter: 219mm~1066mm
Wall thickness: 15mm~120mm
Tolerance of size of our seamless alloy pipe:
Type of pipe
Outer diameter
Wall thickness
OD (mm)
Tolerance (mm)
WT (mm)
Tolerance (mm)
Hot rolled pipe
219~457
±1.0%
≤20
-10%~+12.5%
>20~40
-10%~+10%
457~1066
±0.9%
>40~70
-7%~+9%
>70~120
-6%~+8%
Further more, the plant has large-scale cold rolling machine(by 1200t, 1600t, 2000t), the maximum cold rolling diameter can be 920mm. Cold rolling technics can improve the precision of diameter and wall thickness. So we can supply high steel grade steel pipe with big diameter and thin thickness.
Our service
Make production according to customer's specific requirements strictly.
Accept inspection during the production or before shipment.
Provide the original copy of MTC(Mill testing certificate)
Provide the standard seaworthy packing.
Arrange the most professional shipment.
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ASTM A335 Alloy Seamless Steel Pipe for Power Plant
Model NO.: IR-B steel pipe
Connection Type: Seamless
Size: 219mm~1066mm
Surface: Bare Pipe, Unti-Rust Painting
End Processing: Bevel Ends, Plain Ends
Length: Fixed Length, by Random
Delivery State: Heat Treatment
Trademark: Iron&steel
Transport Package: Standard Seaworthy Packing
Specification: ASME, JIS, IBR
Origin: China
HS Code: 73045910
Model NO.: IR-B steel pipe
Connection Type: Seamless
Size: 219mm~1066mm
Surface: Bare Pipe, Unti-Rust Painting
End Processing: Bevel Ends, Plain Ends
Length: Fixed Length, by Random
Delivery State: Heat Treatment
Trademark: Iron&steel
Transport Package: Standard Seaworthy Packing
Specification: ASME, JIS, IBR
Origin: China
HS Code: 73045910
ASTM A335 Standard Seamless Steel Pipe for Boier pipe, power plant