Professional China China 42CrMo 30CrMo 35CrMo 15CrMo Chromoly Steel Alloy Tube Seamless Steel Pipe
We take “customer-friendly, quality-oriented, integrative, innovative” as objectives. “Truth and honesty” is our management ideal for Professional China China 42CrMo 30CrMo 35CrMo 15CrMo Chromoly Steel Alloy Tube Seamless Steel Pipe, We often supply very best quality solutions and exceptional provider for the majority of enterprise users and traders . Warmly welcome to join us, let’s innovate with each other, and fly dreams.
We take “customer-friendly, quality-oriented, integrative, innovative” as objectives. “Truth and honesty” is our management ideal for 30CrMo Steel Tube, China 42CrMo Steel Tube, We have a good reputation for stable quality products, well received by customers at home and abroad. Our company would be guided by the idea of “Standing in Domestic Markets, Walking into International Markets”. We sincerely hope that we could do business with car manufacturers, auto part buyers and the majority of colleagues both at home and abroad. We expect sincere cooperation and common development!
Overview
| Standard: ASTM SA210 | Alloy Or Not: Carbon steel |
| Grade Group: GrA. GrC | Application: Boiler Pipe |
| Thickness: 1 – 100 mm | Surface Treatment: As customer’s requirement |
| Outer Diameter(Round): 10 – 1000 mm | Technique: Hot Rolled/Cold Drawn |
| Length: Fixed length or random length | Heat treatment: Annealing/normalizing |
| Section Shape: Round | Special Pipe: Thick Wall Pipe |
| Place of Origin: China | Usage: Boiler and Heat Exchanger |
| Certification: ISO9001:2008 | Test: ET/UT |
Application
It is mainly used to make high-quality seamless carbon steel, for boiler pipes, super heat pipes
for bolier industry , heat changer pipe etc. With difference sizes and thickness
Main Grade
Grade of high-quality carbon boiler steel: GrA, GrC
Chemical Component
| Element | Grade A | Grade C |
| C | ≤0.27 | ≤0.35 |
| Mn | ≤0.93 | 0.29-1.06 |
| P | ≤0.035 | ≤0.035 |
| S | ≤0.035 | ≤0.035 |
| Si | ≥ 0.1 | ≥ 0.1 |
A For each reduction of 0.01 % below the specified carbon maximum, an increase of 0.06 % manganese above the specified maximum will be permitted up to a maximum of 1.35 %.
Mechanical Property
| Grade A | Grade C | |
| Tensile Strength | ≥ 415 | ≥ 485 |
| Yield Strength | ≥ 255 | ≥ 275 |
| Elongation rate | ≥ 30 | ≥ 30 |
Test Requirement
Hydraustatic Test:
The Steel Pipe Should Be Tested Hydraulically One By One. The Maximum Test Pressure Is 20 MPa. Under The Test Pressure, The Stabilization Time Should Be Not Less Than 10 S, And The Steel Pipe Should Not Leak.
After The User Agrees, The Hydraulic Test Can Be Replaced By Eddy Current Testing Or Magnetic Flux Leakage Testing.
Flattening Test：
Tubes With An Outer Diameter Greater Than 22 Mm Shall Be Subjected To A Flattening Test. No Visible Delamination, White Spots, Or Impurities Should Occur During The Entire Experiment.
Flaring Test:
According To The Requirements Of The Purchaser And Stated In The Contract, The Steel Pipe With Outer Diameter ≤76mm And Wall Thickness ≤8mm Can Be Done Flaring Test . The Experiment Was Performed At Room Temperature With A Taper Of 60 °. After The Flaring, The Flaring Rate Of The Outer Diameter Should Meet The Requirements Of The Following Table, And The Test Material Must Not Show Cracks Or Rips
Hardness Test:
Brinell or Rockwell hardness tests shall be made on specimens from two tubes from each lot
Product Detail
Boiler Tube
GB/T5310-2017
ASME SA-106/SA-106M-2015
ASTMA210(A210M)-2012
ASME SA-213/SA-213M
