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ASME SA-556M Seamless steel tubes for high pressure feedwater heater Applicatition:Straight pipe and U-shaped seamless pipe for high-pressure feedwater heater Size:OD--12-32mm WT--1.5-4mm Length--2-15m The tolerance of outer diameter unit:mm D Tolerance D＜25 ±0.10 D≥25 ±0.15 The tolerance of the length of the U-tube straight pipe unit:mm the length of the straight pipe Tolerance L≤6000 +3.2 0 6000＜L≤9000 +4.0 0 9000＜L≤15000 +4.8 0 The steel grade and chemical component No.

TORICH GB 28884 300L - 3000L Seamless Steel Tubes for Large Volume Gas Cylinder Material:30CrMoE 42CrMoE 4130X 4142 Size Range:OD:80-1200mm WT:4-100mm General Length:4-12m Tolerance: According to the following tables or customers’ request. Category Size Tolerance Outside Diameter(D) - ±1%D Minimum Wall Thickness(Smin) D≤559 +25%Smin 0 D>559 +27.5%Smin 0 Wall Thickness(S) D≤559 +12.5%S -10%S D>559 ±12.5%S Mechanical Properties: Steel Tensile Strength Lower yield strength or

GB/T 3093 TORICH High Pressure Seamless Steel Tubes for Diesel Engine Spec: Material:10A 20A Q345A Size Range:OD:4-1200mm WT:0.3-200mm General Length:1.5-6m Tolerance: According to the following tables or customers’ request. Characteristic:Technical Requirements Chemical component: Name Grade Chemical component(mass fraction )% C Si Mn P S Cr Ni Cu Max U20103 10A 0.07-0.13 0.17-0.37 0.35-0.65 0.03 0.03 0.15 0.30 0.20 U20203 20A 0.17-0.23 0.17-0.37 0.35-0.65 0.03 0.03 0.25 0

ASTM A269 316 304 Cold drawn Seamless stainless steel pipes for fluid transport 12Cr18Ni9 Application:Fluid transport size:L--10-12m OD--6-219mm WT--2-50mm steel grade:12Cr18Ni9,06Cr19Ni10 ,022Cr19Ni10,06Cr19Ni10N,06Cr19Ni9NbN,022Cr19Ni10N,06Cr23Ni13,06Cr25Ni20,06Cr17Ni12Mo2,022Cr17Ni12Mo2,07Cr17Ni12Mo2,06Cr17Ni12Mo2Ti Manufacture method:Hot rolling (squeezing, expanding) or cold drawing (rolling) Delivery State:Heat treatment and pickling The Tolerance of Outer Diameter and

ASTM A106 GrB Torich Seamless Carbon Steel Tube/Structural Steel Pipe for High Temperature ASTM A106 Seamless Carbon Steel Tubes for high-temperature service Size range: O.D.:6-711mm W.T.:1-80mm L:max12000mm Standard: ASTM A106 Materail: Gr B Carbon Steel Applications: for high temperature service What is your Guarantee? 1.SO9001:2008 and TS16949 certification, SGS, BV, TUV or other third party inspection is available. 2.High quality with competitive price. 3.Advanced

TORICH GB/T3093 Q345 High-Pressure Seamless Steel Tubes For Diesel Engine size:OD:6-530mm WT:0.5-38.1mm Length:1.5-6m Steel Grade And Chemical component Unified digital code Grade Chemical Component(Quality Fraction)/% C Si Mn P S Cr Ni Cu No More Than U20103 10A 0.07~0.13 0.17~0.37 0.35~0.65 0.030 0.030 0.15 0.30 0.20 U20203 20A 0.17~0.23 0.17~0.37 0.35~0.65 0.030 0.030 0.25 0.30 0.20 L03451 Q345A ≤0.20 ≤0.55 1.00~1.60 0.030 0.030 0.30 0.30 0.20 The tolerance of OD and WT

Seamless Steel Tubes for Liquid Service GB/T 8163 10# 20# Spec: Material:10# 20# Q295 Q345 st35.8 Size Range:OD:4-1200mm WT:0.3-200mm General Length:3-12.5m Tolerance of the OD &WT: OD Tolerance: Production Method OD Tolerance Hot Rolling(Extrusion) ±1% or ±0.50mm Cold Drawn(Cold Rolled) ±1% or ±0.30mm Tolerance for wall thickness: 1.Wall thickness tolerance of Hot Rolling steel tube: Production Method OD (DN) WT/OD Tolerance Extruded tube ≤102 / ±12.5% or ±0.40mm ＞102 ≤0.05

Seamless Steel Tubes for Structural Purposes GB/T 8162 Spec: Material:10# 20# 45# 20Mn 25Mn Q235 Q345 Size Range: OD:3-1200mm, WT:0.5-200mm, General Length:3-12m Tolerance: According to the following tables or customers’ request. Characteristic: Good concentricity Good OD and ID tolerance High Precision Stable quality Smooth Roughness TORICH QUALITY ASSURANCE Tolerance of the OD &WT: OD Tolerance: Production Method OD Tolerance Hot Rolling(Extrusion) ±1% or ±0.50mm Cold Drawn

GB/T 13296 TORICH seamless stainless steel tubes for boiler and heat exchanger Size Range: OD:6-159mm WT:1-14mm Length: 3000mm-12000mm Characteristic: Good OD and ID tolerance controlled to Technical Standard Stable quality Steel grade and chemical composition Number Steel grade Chemical Composition % C Si Mn P S Ni Cr Mo Ti 1 0Cr18Ni9 ≤0.07 ≤1.00 ≤2.00 ≤0.035 ≤0.030 8.00~ 1.00 17.00~ 19.00 — — 2 1Cr18Ni9 ≤0.15 ≤1.00 ≤2.00 ≤0.035 ≤0.030 8.00~ 10.50 17.00~ 19.00 — — 3 1Cr19Ni9