Seamless Steel Tube

TORICH Custom Round 34CrMo4 Alloy Steel Pipe With Heat Treatment Good surface quality Material:34CrMo4 Chemical composition: C:0.30~0.37 Si:0.10~0.40 Mn:0.60~0.90 S:permissible residual content ≤0.035 P:permissible residual content ≤0.035 Cr:0.90~1.20 Ni:permissible residual content ≤0.030 Cu:permissible residual content ≤0.030 Mo:0.15~0.30 Mechanical properties: Tensile strength σb (MPa):≥985(100) Yield strength σs (MPa):≥835(85) Elongation δ5 (%):≥12 rate of reduction in

Cold drawn or cold-rolled precision seamless steel tubes Relative standard : GB/T222 permissible tolerance for chemical composition of steel products. GB/T223.5 Steel and iron-Determination of acid-soluble silicon and total silicon content-Reduced molybdosilicate spectro photometric method(GB/T223.5-2008,ISO 4829-1:1986,ISO 4829-2:1988,MOD) Mechanical properties Steel grade 10# 20# 35# 45# Q345B Steel grade deliver conditions +C +LC +SR +A +N Rm/Mpa A/% Rm/Mpa A/% Rm/Mpa ReH

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.

GB/T 24187 Cold-drawn precision single welded steel tubes Application:It is suitable for cold drawn precision single-layer welded steel pipes used in the production of condensers, evaporators, fuel pipes, lubricating oil pipes, electric heat pipes, cooler pipes, and general pipes in refrigeration, automotive, electric heating and other industries. Size:L--1.4-4000m WT--0.3-1.3mm OD--3.18-18mm Plating method for outside plating of steel pipe:Electroplating, electroless plating

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

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

TORICH GB/T 18984 Seamless Steel Tubes For Low-Temperature-Service Piping Application:For Low-Temperature-Service Piping Material:16MnDG,10MnDG,09DG,09Mn2VDG,06Ni3MoDGUnit:mmHot Roll(Extrusion,Expansion)Steel TubeCold Drawn(Roll) Steel TubeDiamensionToleranceDiamensionToleranceOrdinary Level PAHigh Level PCOrdinary Level PAHigh Level PCNominal Outer DiameterD＜76.1±1.25%D±0.60Nominal Outer DiameterD＜12.7±0.30±0.1076.1~＜139.7±0.8012.7~＜38.1±0.30±0.15139.7~＜273.1±1.5%D±1.2038.1~

GB/T 18984 Low-temperature-service Piping Seamless Steel Tube Application:Applicable to -45 °C grade ~-100 °C level cryogenic pressure vessel pipe and low temperature heat exchanger pipe seamless steel Size:L--4-12m OD--30-351mm WT--3-25mm Manufacture method:Steel should be smelted with oxygen converter or electric furnace and added outside the furnace Delivery Condition:Normal delivery Processing methods:Hot rolled (expanding) steel pipe--WH cold drawing (rolling) Steel pipe

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 1010 1020 10# 20# Carbon Steel Hot rolled Seamless Steel Pipe Tube for Liquid Service GB/T 8163 Steel Grade/Steel Material: Mechanical Properties(longitudinal): Steel Grade Tensile Strength MPa Yield Strength MPa Elongation % s≤16 s>16 no less than 10 335-475 205 195 24 10 410-550 245 235 20 Q295 430-610 295 285 22 Q345 490-665 325 315 21 Test Item Test item 1 Mechenical properties 2 Elongation 3 Impact 4 Flattening Testing 5 Flaring Testing 6 Cold Bend 7 Hydraulic 8 U

300L~3000L Seamless Steel Tubes for Large Volume Gas Cylinder GB 28884 SPEC: Material:30CrMoE 42CrMoE 4130X 4142 Size Range:OD:80-1200mm WT:4-100mm General Length:4-12m Characteristic: Good concentricity Good surface quality Good OD and ID tolerance High Precision Stable quality Smooth Roughness TORICH QUALITY ASSURANCE Tolerance: According to the following tables or customers’ request. Category Size Tolerance Outside Diameter(D) - ±1%D Minimum Wall Thickness(Smin) D≤559 +25

Seamless Steel Tubes and Pipes for High Pressure Boiler GB 5310 Spec: Material:20G 20MnG 25MnG Size Range:OD:4-1200mm WT:0.3-200mm General Length:4-12.5m Tolerance: According to the following tables or customers’ request. Producing method Size Tolerance General High grade Hot rolling (extrude) D 54~325 S≤35 ±0.75% ±0.5% S>35 ±1% ±0.75% >325 ±1% ±0.75% S ≤4.0 ±0.45 ±0.35 >4.0~20 ±12.5%-10% ±10% >20 D25.4~40 ±0.20 _ >40~50 ±0.25 _ >50~60 ±0.30 _ >60 ±0.5% _ S ≤3.0 ±0.3 ±0.2 &g

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

GB/T 3090 SUS 304/316 ASTM 304/316/321 EN 1.4301/1.4541/1 Austenitic Stainless Small Diameter Seamless Steel Tubes QUALITY CONTROL 1~ Incoming Raw Material Inspection 2~ Raw Material Segregation to avoid steel grade mix-up 3~ Heating and Hammering End for Cold Drawing 4~ Cold Drawing and Cold Rolling, on line inspection 5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T 6~ Straightening-Cutting to specified length-Finished Measuring Inspection 7~ Machanical Testing in own labs with

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

GB 3087 Seamless Steel Tubes for Low and Medium Pressure Boiler Characteristic: Good concentricity Good surface quality Good OD and ID tolerance High Precision Stable quality Smooth Roughness TORICH QUALITY ASSURANCE Spec: Material:10# 20# STB33/42 st35.8 Size Range:OD:4-1200mm WT:0.3-200mm General Length:4-12.5m Tolerance: According to the following tables or customers’ request. Tolerance of the OD &WT: OD Tolerance: Production Method OD Tolerance Hot Rolling(Extrusion) ±1%

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

GB/T 8162 Material 10# 45# 20Mn 25Mn Q235 Q345 Seamless Steel Tubes for Structural Purpose 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